Import PyBSDDB 3.4.0. Rename historical wrapper to bsddb185.

11 files changed, 5912 insertions, 58 deletions

diff --git a/Lib/bsddb/__init__.py b/Lib/bsddb/__init__.py
new file mode 100644
index 0000000..a2d820c
--- /dev/null
+++ b/Lib/bsddb/__init__.py
@@ -0,0 +1,237 @@
+#----------------------------------------------------------------------
+#  Copyright (c) 1999-2001, Digital Creations, Fredericksburg, VA, USA
+#  and Andrew Kuchling. All rights reserved.
+#
+#  Redistribution and use in source and binary forms, with or without
+#  modification, are permitted provided that the following conditions are
+#  met:
+#
+#    o Redistributions of source code must retain the above copyright
+#      notice, this list of conditions, and the disclaimer that follows.
+#
+#    o Redistributions in binary form must reproduce the above copyright
+#      notice, this list of conditions, and the following disclaimer in
+#      the documentation and/or other materials provided with the
+#      distribution.
+#
+#    o Neither the name of Digital Creations nor the names of its
+#      contributors may be used to endorse or promote products derived
+#      from this software without specific prior written permission.
+#
+#  THIS SOFTWARE IS PROVIDED BY DIGITAL CREATIONS AND CONTRIBUTORS *AS
+#  IS* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
+#  TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+#  PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL DIGITAL
+#  CREATIONS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
+#  INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
+#  BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
+#  OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+#  ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR
+#  TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE
+#  USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH
+#  DAMAGE.
+#----------------------------------------------------------------------
+
+
+"""
+This package initialization module provides a compatibility interface
+that should enable bsddb3 to be a near drop-in replacement for the original
+old bsddb module.  The functions and classes provided here are all
+wrappers around the new functionality provided in the bsddb3.db module.
+
+People interested in the more advanced capabilites of Berkeley DB 3.x
+should use the bsddb3.db module directly.
+"""
+
+import _bsddb
+# bsddb3 calls it _db
+_db = _bsddb
+__version__ = _db.__version__
+
+error = _db.DBError  # So bsddb3.error will mean something...
+
+#----------------------------------------------------------------------
+
+
+class _DBWithCursor:
+    """
+    A simple wrapper around DB that makes it look like the bsddbobject in
+    the old module.  It uses a cursor as needed to provide DB traversal.
+    """
+    def __init__(self, db):
+        self.db = db
+        self.dbc = None
+        self.db.set_get_returns_none(0)
+
+    def __del__(self):
+        self.close()
+
+    def _checkCursor(self):
+        if self.dbc is None:
+            self.dbc = self.db.cursor()
+
+    def _checkOpen(self):
+        if self.db is None:
+            raise error, "BSDDB object has already been closed"
+
+    def isOpen(self):
+        return self.db is not None
+
+    def __len__(self):
+        self._checkOpen()
+        return len(self.db)
+
+    def __getitem__(self, key):
+        self._checkOpen()
+        return self.db[key]
+
+    def __setitem__(self, key, value):
+        self._checkOpen()
+        self.db[key] = value
+
+    def __delitem__(self, key):
+        self._checkOpen()
+        del self.db[key]
+
+    def close(self):
+        if self.dbc is not None:
+            self.dbc.close()
+        v = 0
+        if self.db is not None:
+            v = self.db.close()
+        self.dbc = None
+        self.db = None
+        return v
+
+    def keys(self):
+        self._checkOpen()
+        return self.db.keys()
+
+    def has_key(self, key):
+        self._checkOpen()
+        return self.db.has_key(key)
+
+    def set_location(self, key):
+        self._checkOpen()
+        self._checkCursor()
+        return self.dbc.set(key)
+
+    def next(self):
+        self._checkOpen()
+        self._checkCursor()
+        rv = self.dbc.next()
+        return rv
+
+    def previous(self):
+        self._checkOpen()
+        self._checkCursor()
+        rv = self.dbc.prev()
+        return rv
+
+    def first(self):
+        self._checkOpen()
+        self._checkCursor()
+        rv = self.dbc.first()
+        return rv
+
+    def last(self):
+        self._checkOpen()
+        self._checkCursor()
+        rv = self.dbc.last()
+        return rv
+
+    def sync(self):
+        self._checkOpen()
+        return self.db.sync()
+
+
+#----------------------------------------------------------------------
+# Compatibility object factory functions
+
+def hashopen(file, flag='c', mode=0666, pgsize=None, ffactor=None, nelem=None,
+            cachesize=None, lorder=None, hflags=0):
+
+    flags = _checkflag(flag)
+    d = _db.DB()
+    d.set_flags(hflags)
+    if cachesize is not None: d.set_cachesize(0, cachesize)
+    if pgsize is not None:    d.set_pagesize(pgsize)
+    if lorder is not None:    d.set_lorder(lorder)
+    if ffactor is not None:   d.set_h_ffactor(ffactor)
+    if nelem is not None:     d.set_h_nelem(nelem)
+    d.open(file, _db.DB_HASH, flags, mode)
+    return _DBWithCursor(d)
+
+#----------------------------------------------------------------------
+
+def btopen(file, flag='c', mode=0666,
+            btflags=0, cachesize=None, maxkeypage=None, minkeypage=None,
+            pgsize=None, lorder=None):
+
+    flags = _checkflag(flag)
+    d = _db.DB()
+    if cachesize is not None: d.set_cachesize(0, cachesize)
+    if pgsize is not None: d.set_pagesize(pgsize)
+    if lorder is not None: d.set_lorder(lorder)
+    d.set_flags(btflags)
+    if minkeypage is not None: d.set_bt_minkey(minkeypage)
+    if maxkeypage is not None: d.set_bt_maxkey(maxkeypage)
+    d.open(file, _db.DB_BTREE, flags, mode)
+    return _DBWithCursor(d)
+
+#----------------------------------------------------------------------
+
+
+def rnopen(file, flag='c', mode=0666,
+            rnflags=0, cachesize=None, pgsize=None, lorder=None,
+            rlen=None, delim=None, source=None, pad=None):
+
+    flags = _checkflag(flag)
+    d = _db.DB()
+    if cachesize is not None: d.set_cachesize(0, cachesize)
+    if pgsize is not None: d.set_pagesize(pgsize)
+    if lorder is not None: d.set_lorder(lorder)
+    d.set_flags(rnflags)
+    if delim is not None: d.set_re_delim(delim)
+    if rlen is not None: d.set_re_len(rlen)
+    if source is not None: d.set_re_source(source)
+    if pad is not None: d.set_re_pad(pad)
+    d.open(file, _db.DB_RECNO, flags, mode)
+    return _DBWithCursor(d)
+
+#----------------------------------------------------------------------
+
+
+def _checkflag(flag):
+    if flag == 'r':
+        flags = _db.DB_RDONLY
+    elif flag == 'rw':
+        flags = 0
+    elif flag == 'w':
+        flags =  _db.DB_CREATE
+    elif flag == 'c':
+        flags =  _db.DB_CREATE
+    elif flag == 'n':
+        flags = _db.DB_CREATE | _db.DB_TRUNCATE
+    else:
+        raise error, "flags should be one of 'r', 'w', 'c' or 'n'"
+    return flags | _db.DB_THREAD
+
+#----------------------------------------------------------------------
+
+
+# This is a silly little hack that allows apps to continue to use the
+# DB_THREAD flag even on systems without threads without freaking out
+# BerkeleyDB.
+#
+# This assumes that if Python was built with thread support then
+# BerkeleyDB was too.
+
+try:
+    import thread
+    del thread
+except ImportError:
+    _db.DB_THREAD = 0
+
+
+#----------------------------------------------------------------------
diff --git a/Lib/bsddb/db.py b/Lib/bsddb/db.py
new file mode 100644
index 0000000..b4365d0
--- /dev/null
+++ b/Lib/bsddb/db.py
@@ -0,0 +1,44 @@
+#----------------------------------------------------------------------
+#  Copyright (c) 1999-2001, Digital Creations, Fredericksburg, VA, USA
+#  and Andrew Kuchling. All rights reserved.
+#
+#  Redistribution and use in source and binary forms, with or without
+#  modification, are permitted provided that the following conditions are
+#  met:
+#
+#    o Redistributions of source code must retain the above copyright
+#      notice, this list of conditions, and the disclaimer that follows.
+#
+#    o Redistributions in binary form must reproduce the above copyright
+#      notice, this list of conditions, and the following disclaimer in
+#      the documentation and/or other materials provided with the
+#      distribution.
+#
+#    o Neither the name of Digital Creations nor the names of its
+#      contributors may be used to endorse or promote products derived
+#      from this software without specific prior written permission.
+#
+#  THIS SOFTWARE IS PROVIDED BY DIGITAL CREATIONS AND CONTRIBUTORS *AS
+#  IS* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
+#  TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+#  PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL DIGITAL
+#  CREATIONS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
+#  INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
+#  BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
+#  OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+#  ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR
+#  TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE
+#  USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH
+#  DAMAGE.
+#----------------------------------------------------------------------
+
+
+# This module is just a placeholder for possible future expansion, in
+# case we ever want to augment the stuff in _db in any way.  For now
+# it just simply imports everything from _db.
+
+from _db import *
+from _db import __version__
+
+if version() < (3, 1, 0):
+    raise ImportError, "BerkeleyDB 3.x symbols not found.  Perhaps python was statically linked with an older version?"
diff --git a/Lib/bsddb/dbobj.py b/Lib/bsddb/dbobj.py
new file mode 100644
index 0000000..9c3e90f
--- /dev/null
+++ b/Lib/bsddb/dbobj.py
@@ -0,0 +1,178 @@
+#-------------------------------------------------------------------------
+#  This file contains real Python object wrappers for DB and DBEnv
+#  C "objects" that can be usefully subclassed.  The previous SWIG
+#  based interface allowed this thanks to SWIG's shadow classes.
+#   --  Gregory P. Smith
+#-------------------------------------------------------------------------
+#
+# (C) Copyright 2001  Autonomous Zone Industries
+#
+# License:  This is free software.  You may use this software for any
+#           purpose including modification/redistribution, so long as
+#           this header remains intact and that you do not claim any
+#           rights of ownership or authorship of this software.  This
+#           software has been tested, but no warranty is expressed or
+#           implied.
+#
+
+import db
+
+
+class DBEnv:
+    def __init__(self, *args, **kwargs):
+        self._cobj = apply(db.DBEnv, args, kwargs)
+
+    def close(self, *args, **kwargs):
+        return apply(self._cobj.close, args, kwargs)
+    def open(self, *args, **kwargs):
+        return apply(self._cobj.open, args, kwargs)
+    def remove(self, *args, **kwargs):
+        return apply(self._cobj.remove, args, kwargs)
+    def set_cachesize(self, *args, **kwargs):
+        return apply(self._cobj.set_cachesize, args, kwargs)
+    def set_data_dir(self, *args, **kwargs):
+        return apply(self._cobj.set_data_dir, args, kwargs)
+    def set_flags(self, *args, **kwargs):
+        return apply(self._cobj.set_flags, args, kwargs)
+    def set_lg_bsize(self, *args, **kwargs):
+        return apply(self._cobj.set_lg_bsize, args, kwargs)
+    def set_lg_dir(self, *args, **kwargs):
+        return apply(self._cobj.set_lg_dir, args, kwargs)
+    def set_lg_max(self, *args, **kwargs):
+        return apply(self._cobj.set_lg_max, args, kwargs)
+    def set_lk_detect(self, *args, **kwargs):
+        return apply(self._cobj.set_lk_detect, args, kwargs)
+    def set_lk_max(self, *args, **kwargs):
+        return apply(self._cobj.set_lk_max, args, kwargs)
+    def set_lk_max_locks(self, *args, **kwargs):
+        return apply(self._cobj.set_lk_max_locks, args, kwargs)
+    def set_lk_max_lockers(self, *args, **kwargs):
+        return apply(self._cobj.set_lk_max_lockers, args, kwargs)
+    def set_lk_max_objects(self, *args, **kwargs):
+        return apply(self._cobj.set_lk_max_objects, args, kwargs)
+    def set_mp_mmapsize(self, *args, **kwargs):
+        return apply(self._cobj.set_mp_mmapsize, args, kwargs)
+    def set_tmp_dir(self, *args, **kwargs):
+        return apply(self._cobj.set_tmp_dir, args, kwargs)
+    def txn_begin(self, *args, **kwargs):
+        return apply(self._cobj.txn_begin, args, kwargs)
+    def txn_checkpoint(self, *args, **kwargs):
+        return apply(self._cobj.txn_checkpoint, args, kwargs)
+    def txn_stat(self, *args, **kwargs):
+        return apply(self._cobj.txn_stat, args, kwargs)
+    def set_tx_max(self, *args, **kwargs):
+        return apply(self._cobj.set_tx_max, args, kwargs)
+    def lock_detect(self, *args, **kwargs):
+        return apply(self._cobj.lock_detect, args, kwargs)
+    def lock_get(self, *args, **kwargs):
+        return apply(self._cobj.lock_get, args, kwargs)
+    def lock_id(self, *args, **kwargs):
+        return apply(self._cobj.lock_id, args, kwargs)
+    def lock_put(self, *args, **kwargs):
+        return apply(self._cobj.lock_put, args, kwargs)
+    def lock_stat(self, *args, **kwargs):
+        return apply(self._cobj.lock_stat, args, kwargs)
+    def log_archive(self, *args, **kwargs):
+        return apply(self._cobj.log_archive, args, kwargs)
+    def set_get_returns_none(self, *args, **kwargs):
+        return apply(self._cobj.set_get_returns_none, args, kwargs)
+
+
+class DB:
+    def __init__(self, dbenv, *args, **kwargs):
+        # give it the proper DBEnv C object that its expecting
+        self._cobj = apply(db.DB, (dbenv._cobj,) + args, kwargs)
+
+    # TODO are there other dict methods that need to be overridden?
+    def __len__(self):
+        return len(self._cobj)
+    def __getitem__(self, arg):
+        return self._cobj[arg]
+    def __setitem__(self, key, value):
+        self._cobj[key] = value
+    def __delitem__(self, arg):
+        del self._cobj[arg]
+
+    def append(self, *args, **kwargs):
+        return apply(self._cobj.append, args, kwargs)
+    def associate(self, *args, **kwargs):
+        return apply(self._cobj.associate, args, kwargs)
+    def close(self, *args, **kwargs):
+        return apply(self._cobj.close, args, kwargs)
+    def consume(self, *args, **kwargs):
+        return apply(self._cobj.consume, args, kwargs)
+    def consume_wait(self, *args, **kwargs):
+        return apply(self._cobj.consume_wait, args, kwargs)
+    def cursor(self, *args, **kwargs):
+        return apply(self._cobj.cursor, args, kwargs)
+    def delete(self, *args, **kwargs):
+        return apply(self._cobj.delete, args, kwargs)
+    def fd(self, *args, **kwargs):
+        return apply(self._cobj.fd, args, kwargs)
+    def get(self, *args, **kwargs):
+        return apply(self._cobj.get, args, kwargs)
+    def get_both(self, *args, **kwargs):
+        return apply(self._cobj.get_both, args, kwargs)
+    def get_byteswapped(self, *args, **kwargs):
+        return apply(self._cobj.get_byteswapped, args, kwargs)
+    def get_size(self, *args, **kwargs):
+        return apply(self._cobj.get_size, args, kwargs)
+    def get_type(self, *args, **kwargs):
+        return apply(self._cobj.get_type, args, kwargs)
+    def join(self, *args, **kwargs):
+        return apply(self._cobj.join, args, kwargs)
+    def key_range(self, *args, **kwargs):
+        return apply(self._cobj.key_range, args, kwargs)
+    def has_key(self, *args, **kwargs):
+        return apply(self._cobj.has_key, args, kwargs)
+    def items(self, *args, **kwargs):
+        return apply(self._cobj.items, args, kwargs)
+    def keys(self, *args, **kwargs):
+        return apply(self._cobj.keys, args, kwargs)
+    def open(self, *args, **kwargs):
+        return apply(self._cobj.open, args, kwargs)
+    def put(self, *args, **kwargs):
+        return apply(self._cobj.put, args, kwargs)
+    def remove(self, *args, **kwargs):
+        return apply(self._cobj.remove, args, kwargs)
+    def rename(self, *args, **kwargs):
+        return apply(self._cobj.rename, args, kwargs)
+    def set_bt_minkey(self, *args, **kwargs):
+        return apply(self._cobj.set_bt_minkey, args, kwargs)
+    def set_cachesize(self, *args, **kwargs):
+        return apply(self._cobj.set_cachesize, args, kwargs)
+    def set_flags(self, *args, **kwargs):
+        return apply(self._cobj.set_flags, args, kwargs)
+    def set_h_ffactor(self, *args, **kwargs):
+        return apply(self._cobj.set_h_ffactor, args, kwargs)
+    def set_h_nelem(self, *args, **kwargs):
+        return apply(self._cobj.set_h_nelem, args, kwargs)
+    def set_lorder(self, *args, **kwargs):
+        return apply(self._cobj.set_lorder, args, kwargs)
+    def set_pagesize(self, *args, **kwargs):
+        return apply(self._cobj.set_pagesize, args, kwargs)
+    def set_re_delim(self, *args, **kwargs):
+        return apply(self._cobj.set_re_delim, args, kwargs)
+    def set_re_len(self, *args, **kwargs):
+        return apply(self._cobj.set_re_len, args, kwargs)
+    def set_re_pad(self, *args, **kwargs):
+        return apply(self._cobj.set_re_pad, args, kwargs)
+    def set_re_source(self, *args, **kwargs):
+        return apply(self._cobj.set_re_source, args, kwargs)
+    def set_q_extentsize(self, *args, **kwargs):
+        return apply(self._cobj.set_q_extentsize, args, kwargs)
+    def stat(self, *args, **kwargs):
+        return apply(self._cobj.stat, args, kwargs)
+    def sync(self, *args, **kwargs):
+        return apply(self._cobj.sync, args, kwargs)
+    def type(self, *args, **kwargs):
+        return apply(self._cobj.type, args, kwargs)
+    def upgrade(self, *args, **kwargs):
+        return apply(self._cobj.upgrade, args, kwargs)
+    def values(self, *args, **kwargs):
+        return apply(self._cobj.values, args, kwargs)
+    def verify(self, *args, **kwargs):
+        return apply(self._cobj.verify, args, kwargs)
+    def set_get_returns_none(self, *args, **kwargs):
+        return apply(self._cobj.set_get_returns_none, args, kwargs)
+
diff --git a/Lib/bsddb/dbrecio.py b/Lib/bsddb/dbrecio.py
new file mode 100644
index 0000000..995dad7
--- /dev/null
+++ b/Lib/bsddb/dbrecio.py
@@ -0,0 +1,190 @@
+
+"""
+File-like objects that read from or write to a bsddb3 record.
+
+This implements (nearly) all stdio methods.
+
+f = DBRecIO(db, key, txn=None)
+f.close()           # explicitly release resources held
+flag = f.isatty()   # always false
+pos = f.tell()      # get current position
+f.seek(pos)         # set current position
+f.seek(pos, mode)   # mode 0: absolute; 1: relative; 2: relative to EOF
+buf = f.read()      # read until EOF
+buf = f.read(n)     # read up to n bytes
+f.truncate([size])  # truncate file at to at most size (default: current pos)
+f.write(buf)        # write at current position
+f.writelines(list)  # for line in list: f.write(line)
+
+Notes:
+- fileno() is left unimplemented so that code which uses it triggers
+  an exception early.
+- There's a simple test set (see end of this file) - not yet updated
+  for DBRecIO.
+- readline() is not implemented yet.
+
+
+From:
+    Itamar Shtull-Trauring <itamar@maxnm.com>
+"""
+
+import errno
+import string
+
+class DBRecIO:
+    def __init__(self, db, key, txn=None):
+        self.db = db
+        self.key = key
+        self.txn = txn
+        self.len = None
+        self.pos = 0
+        self.closed = 0
+        self.softspace = 0
+
+    def close(self):
+        if not self.closed:
+            self.closed = 1
+            del self.db, self.txn
+
+    def isatty(self):
+        if self.closed:
+            raise ValueError, "I/O operation on closed file"
+        return 0
+
+    def seek(self, pos, mode = 0):
+        if self.closed:
+            raise ValueError, "I/O operation on closed file"
+        if mode == 1:
+            pos = pos + self.pos
+        elif mode == 2:
+            pos = pos + self.len
+        self.pos = max(0, pos)
+
+    def tell(self):
+        if self.closed:
+            raise ValueError, "I/O operation on closed file"
+        return self.pos
+
+    def read(self, n = -1):
+        if self.closed:
+            raise ValueError, "I/O operation on closed file"
+        if n < 0:
+            newpos = self.len
+        else:
+            newpos = min(self.pos+n, self.len)
+
+        dlen = newpos - self.pos
+
+        r = self.db.get(key, txn=self.txn, dlen=dlen, doff=self.pos)
+        self.pos = newpos
+        return r
+
+    __fixme = """
+    def readline(self, length=None):
+        if self.closed:
+            raise ValueError, "I/O operation on closed file"
+        if self.buflist:
+            self.buf = self.buf + string.joinfields(self.buflist, '')
+            self.buflist = []
+        i = string.find(self.buf, '\n', self.pos)
+        if i < 0:
+            newpos = self.len
+        else:
+            newpos = i+1
+        if length is not None:
+            if self.pos + length < newpos:
+                newpos = self.pos + length
+        r = self.buf[self.pos:newpos]
+        self.pos = newpos
+        return r
+
+    def readlines(self, sizehint = 0):
+        total = 0
+        lines = []
+        line = self.readline()
+        while line:
+            lines.append(line)
+            total += len(line)
+            if 0 < sizehint <= total:
+                break
+            line = self.readline()
+        return lines
+    """
+
+    def truncate(self, size=None):
+        if self.closed:
+            raise ValueError, "I/O operation on closed file"
+        if size is None:
+            size = self.pos
+        elif size < 0:
+            raise IOError(errno.EINVAL,
+                                      "Negative size not allowed")
+        elif size < self.pos:
+            self.pos = size
+        self.db.put(key, "", txn=self.txn, dlen=self.len-size, doff=size)
+
+    def write(self, s):
+        if self.closed:
+            raise ValueError, "I/O operation on closed file"
+        if not s: return
+        if self.pos > self.len:
+            self.buflist.append('\0'*(self.pos - self.len))
+            self.len = self.pos
+        newpos = self.pos + len(s)
+        self.db.put(key, s, txn=self.txn, dlen=len(s), doff=self.pos)
+        self.pos = newpos
+
+    def writelines(self, list):
+        self.write(string.joinfields(list, ''))
+
+    def flush(self):
+        if self.closed:
+            raise ValueError, "I/O operation on closed file"
+
+
+"""
+# A little test suite
+
+def _test():
+    import sys
+    if sys.argv[1:]:
+        file = sys.argv[1]
+    else:
+        file = '/etc/passwd'
+    lines = open(file, 'r').readlines()
+    text = open(file, 'r').read()
+    f = StringIO()
+    for line in lines[:-2]:
+        f.write(line)
+    f.writelines(lines[-2:])
+    if f.getvalue() != text:
+        raise RuntimeError, 'write failed'
+    length = f.tell()
+    print 'File length =', length
+    f.seek(len(lines[0]))
+    f.write(lines[1])
+    f.seek(0)
+    print 'First line =', `f.readline()`
+    here = f.tell()
+    line = f.readline()
+    print 'Second line =', `line`
+    f.seek(-len(line), 1)
+    line2 = f.read(len(line))
+    if line != line2:
+        raise RuntimeError, 'bad result after seek back'
+    f.seek(len(line2), 1)
+    list = f.readlines()
+    line = list[-1]
+    f.seek(f.tell() - len(line))
+    line2 = f.read()
+    if line != line2:
+        raise RuntimeError, 'bad result after seek back from EOF'
+    print 'Read', len(list), 'more lines'
+    print 'File length =', f.tell()
+    if f.tell() != length:
+        raise RuntimeError, 'bad length'
+    f.close()
+
+if __name__ == '__main__':
+    _test()
+"""
diff --git a/Lib/bsddb/dbshelve.py b/Lib/bsddb/dbshelve.py
new file mode 100644
index 0000000..ce4a466
--- /dev/null
+++ b/Lib/bsddb/dbshelve.py
@@ -0,0 +1,291 @@
+#!/bin/env python
+#------------------------------------------------------------------------
+#           Copyright (c) 1997-2001 by Total Control Software
+#                         All Rights Reserved
+#------------------------------------------------------------------------
+#
+# Module Name:  dbShelve.py
+#
+# Description:  A reimplementation of the standard shelve.py that
+#               forces the use of cPickle, and DB.
+#
+# Creation Date:    11/3/97 3:39:04PM
+#
+# License:      This is free software.  You may use this software for any
+#               purpose including modification/redistribution, so long as
+#               this header remains intact and that you do not claim any
+#               rights of ownership or authorship of this software.  This
+#               software has been tested, but no warranty is expressed or
+#               implied.
+#
+# 13-Dec-2000:  Updated to be used with the new bsddb3 package.
+#               Added DBShelfCursor class.
+#
+#------------------------------------------------------------------------
+
+"""
+Manage shelves of pickled objects using bsddb3 database files for the
+storage.
+"""
+
+#------------------------------------------------------------------------
+
+import cPickle
+from bsddb3 import db
+
+#------------------------------------------------------------------------
+
+
+def open(filename, flags=db.DB_CREATE, mode=0660, filetype=db.DB_HASH,
+         dbenv=None, dbname=None):
+    """
+    A simple factory function for compatibility with the standard
+    shleve.py module.  It can be used like this, where key is a string
+    and data is a pickleable object:
+
+        from bsddb3 import dbshelve
+        db = dbshelve.open(filename)
+
+        db[key] = data
+
+        db.close()
+    """
+    if type(flags) == type(''):
+        sflag = flags
+        if sflag == 'r':
+            flags = db.DB_RDONLY
+        elif sflag == 'rw':
+            flags = 0
+        elif sflag == 'w':
+            flags =  db.DB_CREATE
+        elif sflag == 'c':
+            flags =  db.DB_CREATE
+        elif sflag == 'n':
+            flags = db.DB_TRUNCATE | db.DB_CREATE
+        else:
+            raise error, "flags should be one of 'r', 'w', 'c' or 'n' or use the bsddb3.db.DB_* flags"
+
+    d = DBShelf(dbenv)
+    d.open(filename, dbname, filetype, flags, mode)
+    return d
+
+#---------------------------------------------------------------------------
+
+class DBShelf:
+    """
+    A shelf to hold pickled objects, built upon a bsddb3 DB object.  It
+    automatically pickles/unpickles data objects going to/from the DB.
+    """
+    def __init__(self, dbenv=None):
+        self.db = db.DB(dbenv)
+        self.binary = 1
+
+
+    def __del__(self):
+        self.close()
+
+
+    def __getattr__(self, name):
+        """Many methods we can just pass through to the DB object.  (See below)"""
+        return getattr(self.db, name)
+
+
+    #-----------------------------------
+    # Dictionary access methods
+
+    def __len__(self):
+        return len(self.db)
+
+
+    def __getitem__(self, key):
+        data = self.db[key]
+        return cPickle.loads(data)
+
+
+    def __setitem__(self, key, value):
+        data = cPickle.dumps(value, self.binary)
+        self.db[key] = data
+
+
+    def __delitem__(self, key):
+        del self.db[key]
+
+
+    def keys(self, txn=None):
+        if txn != None:
+            return self.db.keys(txn)
+        else:
+            return self.db.keys()
+
+
+    def items(self, txn=None):
+        if txn != None:
+            items = self.db.items(txn)
+        else:
+            items = self.db.items()
+        newitems = []
+
+        for k, v in items:
+            newitems.append( (k, cPickle.loads(v)) )
+        return newitems
+
+    def values(self, txn=None):
+        if txn != None:
+            values = self.db.values(txn)
+        else:
+            values = self.db.values()
+
+        return map(cPickle.loads, values)
+
+    #-----------------------------------
+    # Other methods
+
+    def append(self, value, txn=None):
+        data = cPickle.dumps(value, self.binary)
+        return self.db.append(data, txn)
+
+
+    def associate(self, secondaryDB, callback, flags=0):
+        def _shelf_callback(priKey, priData, realCallback=callback):
+            data = cPickle.loads(priData)
+            return realCallback(priKey, data)
+        return self.db.associate(secondaryDB, _shelf_callback, flags)
+
+
+    #def get(self, key, default=None, txn=None, flags=0):
+    def get(self, *args, **kw):
+        # We do it with *args and **kw so if the default value wasn't
+        # given nothing is passed to the extension module.  That way
+        # an exception can be raised if set_get_returns_none is turned
+        # off.
+        data = apply(self.db.get, args, kw)
+        try:
+            return cPickle.loads(data)
+        except (TypeError, cPickle.UnpicklingError):
+            return data  # we may be getting the default value, or None,
+                         # so it doesn't need unpickled.
+
+    def get_both(self, key, value, txn=None, flags=0):
+        data = cPickle.dumps(value, self.binary)
+        data = self.db.get(key, data, txn, flags)
+        return cPickle.loads(data)
+
+
+    def cursor(self, txn=None, flags=0):
+        c = DBShelfCursor(self.db.cursor(txn, flags))
+        c.binary = self.binary
+        return c
+
+
+    def put(self, key, value, txn=None, flags=0):
+        data = cPickle.dumps(value, self.binary)
+        return self.db.put(key, data, txn, flags)
+
+
+    def join(self, cursorList, flags=0):
+        raise NotImplementedError
+
+
+    #----------------------------------------------
+    # Methods allowed to pass-through to self.db
+    #
+    #    close,  delete, fd, get_byteswapped, get_type, has_key,
+    #    key_range, open, remove, rename, stat, sync,
+    #    upgrade, verify, and all set_* methods.
+
+
+#---------------------------------------------------------------------------
+
+class DBShelfCursor:
+    """
+    """
+    def __init__(self, cursor):
+        self.dbc = cursor
+
+    def __del__(self):
+        self.close()
+
+
+    def __getattr__(self, name):
+        """Some methods we can just pass through to the cursor object.  (See below)"""
+        return getattr(self.dbc, name)
+
+
+    #----------------------------------------------
+
+    def dup(self, flags=0):
+        return DBShelfCursor(self.dbc.dup(flags))
+
+
+    def put(self, key, value, flags=0):
+        data = cPickle.dumps(value, self.binary)
+        return self.dbc.put(key, data, flags)
+
+
+    def get(self, *args):
+        count = len(args)  # a method overloading hack
+        method = getattr(self, 'get_%d' % count)
+        apply(method, args)
+
+    def get_1(self, flags):
+        rec = self.dbc.get(flags)
+        return self._extract(rec)
+
+    def get_2(self, key, flags):
+        rec = self.dbc.get(key, flags)
+        return self._extract(rec)
+
+    def get_3(self, key, value, flags):
+        data = cPickle.dumps(value, self.binary)
+        rec = self.dbc.get(key, flags)
+        return self._extract(rec)
+
+
+    def current(self, flags=0): return self.get_1(flags|db.DB_CURRENT)
+    def first(self, flags=0): return self.get_1(flags|db.DB_FIRST)
+    def last(self, flags=0): return self.get_1(flags|db.DB_LAST)
+    def next(self, flags=0): return self.get_1(flags|db.DB_NEXT)
+    def prev(self, flags=0): return self.get_1(flags|db.DB_PREV)
+    def consume(self, flags=0): return self.get_1(flags|db.DB_CONSUME)
+    def next_dup(self, flags=0): return self.get_1(flags|db.DB_NEXT_DUP)
+    def next_nodup(self, flags=0): return self.get_1(flags|db.DB_NEXT_NODUP)
+    def prev_nodup(self, flags=0): return self.get_1(flags|db.DB_PREV_NODUP)
+
+
+    def get_both(self, key, value, flags=0):
+        data = cPickle.dumps(value, self.binary)
+        rec = self.dbc.get_both(key, flags)
+        return self._extract(rec)
+
+
+    def set(self, key, flags=0):
+        rec = self.dbc.set(key, flags)
+        return self._extract(rec)
+
+    def set_range(self, key, flags=0):
+        rec = self.dbc.set_range(key, flags)
+        return self._extract(rec)
+
+    def set_recno(self, recno, flags=0):
+        rec = self.dbc.set_recno(recno, flags)
+        return self._extract(rec)
+
+    set_both = get_both
+
+    def _extract(self, rec):
+        if rec is None:
+            return None
+        else:
+            key, data = rec
+            return key, cPickle.loads(data)
+
+    #----------------------------------------------
+    # Methods allowed to pass-through to self.dbc
+    #
+    # close, count, delete, get_recno, join_item
+
+
+#---------------------------------------------------------------------------
+
+
+
diff --git a/Lib/bsddb/dbtables.py b/Lib/bsddb/dbtables.py
new file mode 100644
index 0000000..4e93451
--- /dev/null
+++ b/Lib/bsddb/dbtables.py
@@ -0,0 +1,629 @@
+#-----------------------------------------------------------------------
+#
+# Copyright (C) 2000, 2001 by Autonomous Zone Industries
+#
+# License:      This is free software.  You may use this software for any
+#               purpose including modification/redistribution, so long as
+#               this header remains intact and that you do not claim any
+#               rights of ownership or authorship of this software.  This
+#               software has been tested, but no warranty is expressed or
+#               implied.
+#
+#   --  Gregory P. Smith <greg@electricrain.com>
+
+# This provides a simple database table interface built on top of
+# the Python BerkeleyDB 3 interface.
+#
+_cvsid = '$Id$'
+
+import string
+import sys
+try:
+    import cPickle
+    pickle = cPickle
+except ImportError:
+    import pickle
+import whrandom
+import xdrlib
+import re
+import copy
+
+from bsddb3.db import *
+
+
+class TableDBError(StandardError): pass
+class TableAlreadyExists(TableDBError): pass
+
+
+class Cond:
+    """This condition matches everything"""
+    def __call__(self, s):
+        return 1
+
+class ExactCond(Cond):
+    """Acts as an exact match condition function"""
+    def __init__(self, strtomatch):
+        self.strtomatch = strtomatch
+    def __call__(self, s):
+        return s == self.strtomatch
+
+class PrefixCond(Cond):
+    """Acts as a condition function for matching a string prefix"""
+    def __init__(self, prefix):
+        self.prefix = prefix
+    def __call__(self, s):
+        return s[:len(self.prefix)] == self.prefix
+
+class LikeCond(Cond):
+    """
+    Acts as a function that will match using an SQL 'LIKE' style
+    string.  Case insensitive and % signs are wild cards.
+    This isn't perfect but it should work for the simple common cases.
+    """
+    def __init__(self, likestr, re_flags=re.IGNORECASE):
+        # escape python re characters
+        chars_to_escape = '.*+()[]?'
+        for char in chars_to_escape :
+            likestr = string.replace(likestr, char, '\\'+char)
+        # convert %s to wildcards
+        self.likestr = string.replace(likestr, '%', '.*')
+        self.re = re.compile('^'+self.likestr+'$', re_flags)
+    def __call__(self, s):
+        return self.re.match(s)
+
+#
+# keys used to store database metadata
+#
+_table_names_key = '__TABLE_NAMES__'  # list of the tables in this db
+_columns = '._COLUMNS__'  # table_name+this key contains a list of columns
+def _columns_key(table) : return table + _columns
+
+#
+# these keys are found within table sub databases
+#
+_data =  '._DATA_.'  # this+column+this+rowid key contains table data
+_rowid = '._ROWID_.' # this+rowid+this key contains a unique entry for each
+                     # row in the table.  (no data is stored)
+_rowid_str_len = 8   # length in bytes of the unique rowid strings
+def _data_key(table, col, rowid) : return table + _data + col + _data + rowid
+def _search_col_data_key(table, col) : return table + _data + col + _data
+def _search_all_data_key(table) : return table + _data
+def _rowid_key(table, rowid) : return table + _rowid + rowid + _rowid
+def _search_rowid_key(table) : return table + _rowid
+
+def contains_metastrings(s) :
+    """Verify that the given string does not contain any
+    metadata strings that might interfere with dbtables database operation.
+    """
+    if string.find(s, _table_names_key) >= 0 or \
+       string.find(s, _columns) >= 0 or \
+       string.find(s, _data) >= 0 or \
+       string.find(s, _rowid) >= 0 :
+        return 1
+    else :
+        return 0
+
+
+class bsdTableDB :
+    def __init__(self, filename, dbhome, create=0, truncate=0, mode=0600, recover=0, dbflags=0) :
+        """bsdTableDB.open(filename, dbhome, create=0, truncate=0, mode=0600)
+        Open database name in the dbhome BerkeleyDB directory.
+        Use keyword arguments when calling this constructor.
+        """
+        myflags = DB_THREAD
+        if create :
+            myflags = myflags | DB_CREATE
+        flagsforenv = DB_INIT_MPOOL | DB_INIT_LOCK | DB_INIT_LOG | DB_INIT_TXN | dbflags
+        if recover :
+            flagsforenv = flagsforenv | DB_RECOVER
+        self.env = DBEnv()
+        self.env.set_lk_detect(DB_LOCK_DEFAULT)  # enable auto deadlock avoidance
+        self.env.open(dbhome, myflags | flagsforenv)
+        if truncate :
+            myflags = myflags | DB_TRUNCATE
+        self.db = DB(self.env)
+        self.db.set_flags(DB_DUP)  # allow duplicate entries [warning: be careful w/ metadata]
+        self.db.open(filename, DB_BTREE, myflags, mode)
+
+        self.dbfilename = filename
+
+        # Initialize the table names list if this is a new database
+        if not self.db.has_key(_table_names_key) :
+            self.db.put(_table_names_key, pickle.dumps([], 1))
+
+        # TODO verify more of the database's metadata?
+
+        self.__tablecolumns = {}
+
+    def __del__(self):
+        self.close()
+
+    def close(self):
+        if self.db is not None:
+            self.db.close()
+            self.db = None
+        if self.env is not None:
+            self.env.close()
+            self.env = None
+
+    def checkpoint(self, mins=0):
+        try:
+            self.env.txn_checkpoint(mins)
+        except DBIncompleteError:
+            pass
+
+    def sync(self):
+        try:
+            self.db.sync()
+        except DBIncompleteError:
+            pass
+
+    def _db_print(self) :
+        """Print the database to stdout for debugging"""
+        print "******** Printing raw database for debugging ********"
+        cur = self.db.cursor()
+        try:
+            key, data = cur.first()
+            while 1 :
+                print `{key: data}`
+                next = cur.next()
+                if next:
+                    key, data = next
+                else:
+                    cur.close()
+                    return
+        except DBNotFoundError:
+            cur.close()
+
+
+    def CreateTable(self, table, columns) :
+        """CreateTable(table, columns) - Create a new table in the database
+        raises TableDBError if it already exists or for other DB errors.
+        """
+        assert type(columns) == type([])
+        txn = None
+        try:
+            # checking sanity of the table and column names here on
+            # table creation will prevent problems elsewhere.
+            if contains_metastrings(table) :
+                raise ValueError, "bad table name: contains reserved metastrings"
+            for column in columns :
+                if contains_metastrings(column) :
+                    raise ValueError, "bad column name: contains reserved metastrings"
+
+            columnlist_key = _columns_key(table)
+            if self.db.has_key(columnlist_key) :
+                raise TableAlreadyExists, "table already exists"
+
+            txn = self.env.txn_begin()
+            # store the table's column info
+            self.db.put(columnlist_key, pickle.dumps(columns, 1), txn=txn)
+
+            # add the table name to the tablelist
+            tablelist = pickle.loads(self.db.get(_table_names_key, txn=txn, flags=DB_RMW))
+            tablelist.append(table)
+            self.db.delete(_table_names_key, txn)  # delete 1st, incase we opened with DB_DUP
+            self.db.put(_table_names_key, pickle.dumps(tablelist, 1), txn=txn)
+
+            txn.commit()
+            txn = None
+
+        except DBError, dberror:
+            if txn :
+                txn.abort()
+            raise TableDBError, dberror[1]
+
+
+    def ListTableColumns(self, table):
+        """Return a list of columns in the given table.  [] if the table doesn't exist.
+        """
+        assert type(table) == type('')
+        if contains_metastrings(table) :
+            raise ValueError, "bad table name: contains reserved metastrings"
+
+        columnlist_key = _columns_key(table)
+        if not self.db.has_key(columnlist_key):
+            return []
+        pickledcolumnlist = self.db.get(columnlist_key)
+        if pickledcolumnlist:
+            return pickle.loads(pickledcolumnlist)
+        else:
+            return []
+
+    def ListTables(self):
+        """Return a list of tables in this database."""
+        pickledtablelist = self.db.get(_table_names_key)
+        if pickledtablelist:
+            return pickle.loads(pickledtablelist)
+        else:
+            return []
+
+    def CreateOrExtendTable(self, table, columns):
+        """CreateOrExtendTable(table, columns) - Create a new table in the database.
+        If a table of this name already exists, extend it to have any
+        additional columns present in the given list as well as
+        all of its current columns.
+        """
+        assert type(columns) == type([])
+        try:
+            self.CreateTable(table, columns)
+        except TableAlreadyExists:
+            # the table already existed, add any new columns
+            txn = None
+            try:
+                columnlist_key = _columns_key(table)
+                txn = self.env.txn_begin()
+
+                # load the current column list
+                oldcolumnlist = pickle.loads(self.db.get(columnlist_key, txn=txn, flags=DB_RMW))
+                # create a hash table for fast lookups of column names in the loop below
+                oldcolumnhash = {}
+                for c in oldcolumnlist:
+                    oldcolumnhash[c] = c
+
+                # create a new column list containing both the old and new column names
+                newcolumnlist = copy.copy(oldcolumnlist)
+                for c in columns:
+                    if not oldcolumnhash.has_key(c):
+                        newcolumnlist.append(c)
+
+                # store the table's new extended column list
+                if newcolumnlist != oldcolumnlist :
+                    # delete the old one first since we opened with DB_DUP
+                    self.db.delete(columnlist_key, txn)
+                    self.db.put(columnlist_key, pickle.dumps(newcolumnlist, 1), txn=txn)
+
+                txn.commit()
+                txn = None
+
+                self.__load_column_info(table)
+            except DBError, dberror:
+                if txn:
+                    txn.abort()
+                raise TableDBError, dberror[1]
+
+
+    def __load_column_info(self, table) :
+        """initialize the self.__tablecolumns dict"""
+        # check the column names
+        try:
+            tcolpickles = self.db.get(_columns_key(table))
+        except DBNotFoundError:
+            raise TableDBError, "unknown table: " + `table`
+        if not tcolpickles:
+            raise TableDBError, "unknown table: " + `table`
+        self.__tablecolumns[table] = pickle.loads(tcolpickles)
+
+    def __new_rowid(self, table, txn=None) :
+        """Create a new unique row identifier"""
+        unique = 0
+        while not unique :
+            # Generate a random 64-bit row ID string
+            # (note: this code has <64 bits of randomness
+            # but it's plenty for our database id needs!)
+            p = xdrlib.Packer()
+            p.pack_int(int(whrandom.random()*2147483647))
+            p.pack_int(int(whrandom.random()*2147483647))
+            newid = p.get_buffer()
+
+            # Guarantee uniqueness by adding this key to the database
+            try:
+                self.db.put(_rowid_key(table, newid), None, txn=txn, flags=DB_NOOVERWRITE)
+            except DBKeyExistsError:
+                pass
+            else:
+                unique = 1
+
+        return newid
+
+
+    def Insert(self, table, rowdict) :
+        """Insert(table, datadict) - Insert a new row into the table
+        using the keys+values from rowdict as the column values.
+        """
+        txn = None
+        try:
+            if not self.db.has_key(_columns_key(table)) :
+                raise TableDBError, "unknown table"
+
+            # check the validity of each column name
+            if not self.__tablecolumns.has_key(table) :
+                self.__load_column_info(table)
+            for column in rowdict.keys() :
+                if not self.__tablecolumns[table].count(column) :
+                    raise TableDBError, "unknown column: "+`column`
+
+            # get a unique row identifier for this row
+            rowid = self.__new_rowid(table)
+
+            txn = self.env.txn_begin()
+
+            # insert the row values into the table database
+            for column, dataitem in rowdict.items() :
+                # store the value
+                self.db.put(_data_key(table, column, rowid), dataitem, txn=txn)
+
+            txn.commit()
+            txn = None
+
+        except DBError, dberror:
+            if txn :
+                txn.abort()
+                self.db.delete(_rowid_key(table, rowid))
+            raise TableDBError, dberror[1]
+
+
+    def Modify(self, table, conditions={}, mappings={}) :
+        """Modify(table, conditions) - Modify in rows matching 'conditions'
+        using mapping functions in 'mappings'
+        * conditions is a dictionary keyed on column names
+        containing condition functions expecting the data string as an
+        argument and returning a boolean.
+        * mappings is a dictionary keyed on column names containint condition
+        functions expecting the data string as an argument and returning the
+        new string for that column.
+        """
+        try:
+            matching_rowids = self.__Select(table, [], conditions)
+
+            # modify only requested columns
+            columns = mappings.keys()
+            for rowid in matching_rowids.keys() :
+                txn = None
+                try:
+                    for column in columns :
+                        txn = self.env.txn_begin()
+                        # modify the requested column
+                        try:
+                            dataitem = self.db.get(_data_key(table, column, rowid), txn)
+                            self.db.delete(_data_key(table, column, rowid), txn)
+                        except DBNotFoundError:
+                            dataitem = None # XXXXXXX row key somehow didn't exist, assume no error
+                        dataitem = mappings[column](dataitem)
+                        if dataitem <> None:
+                            self.db.put(_data_key(table, column, rowid), dataitem, txn=txn)
+                        txn.commit()
+                        txn = None
+
+                except DBError, dberror:
+                    if txn :
+                        txn.abort()
+                    raise
+
+        except DBError, dberror:
+            raise TableDBError, dberror[1]
+
+    def Delete(self, table, conditions={}) :
+        """Delete(table, conditions) - Delete items matching the given
+        conditions from the table.
+        * conditions is a dictionary keyed on column names
+        containing condition functions expecting the data string as an
+        argument and returning a boolean.
+        """
+        try:
+            matching_rowids = self.__Select(table, [], conditions)
+
+            # delete row data from all columns
+            columns = self.__tablecolumns[table]
+            for rowid in matching_rowids.keys() :
+                txn = None
+                try:
+                    txn = self.env.txn_begin()
+                    for column in columns :
+                        # delete the data key
+                        try:
+                            self.db.delete(_data_key(table, column, rowid), txn)
+                        except DBNotFoundError:
+                            pass # XXXXXXX column may not exist, assume no error
+
+                    try:
+                        self.db.delete(_rowid_key(table, rowid), txn)
+                    except DBNotFoundError:
+                        pass # XXXXXXX row key somehow didn't exist, assume no error
+                    txn.commit()
+                    txn = None
+                except DBError, dberror:
+                    if txn :
+                        txn.abort()
+                    raise
+
+        except DBError, dberror:
+            raise TableDBError, dberror[1]
+
+
+    def Select(self, table, columns, conditions={}) :
+        """Select(table, conditions) - retrieve specific row data
+        Returns a list of row column->value mapping dictionaries.
+        * columns is a list of which column data to return.  If
+          columns is None, all columns will be returned.
+        * conditions is a dictionary keyed on column names
+          containing callable conditions expecting the data string as an
+          argument and returning a boolean.
+        """
+        try:
+            if not self.__tablecolumns.has_key(table) :
+                self.__load_column_info(table)
+            if columns is None :
+                columns = self.__tablecolumns[table]
+            matching_rowids = self.__Select(table, columns, conditions)
+        except DBError, dberror:
+            raise TableDBError, dberror[1]
+
+        # return the matches as a list of dictionaries
+        return matching_rowids.values()
+
+
+    def __Select(self, table, columns, conditions) :
+        """__Select() - Used to implement Select and Delete (above)
+        Returns a dictionary keyed on rowids containing dicts
+        holding the row data for columns listed in the columns param
+        that match the given conditions.
+        * conditions is a dictionary keyed on column names
+        containing callable conditions expecting the data string as an
+        argument and returning a boolean.
+        """
+        # check the validity of each column name
+        if not self.__tablecolumns.has_key(table) :
+            self.__load_column_info(table)
+        if columns is None :
+            columns = self.tablecolumns[table]
+        for column in (columns + conditions.keys()) :
+            if not self.__tablecolumns[table].count(column) :
+                raise TableDBError, "unknown column: "+`column`
+
+        # keyed on rows that match so far, containings dicts keyed on
+        # column names containing the data for that row and column.
+        matching_rowids = {}
+
+        rejected_rowids = {} # keys are rowids that do not match
+
+        # attempt to sort the conditions in such a way as to minimize full column lookups
+        def cmp_conditions(atuple, btuple):
+            a = atuple[1]
+            b = btuple[1]
+            if type(a) == type(b) :
+                if isinstance(a, PrefixCond) and isinstance(b, PrefixCond):
+                    return cmp(len(b.prefix), len(a.prefix))  # longest prefix first
+                if isinstance(a, LikeCond) and isinstance(b, LikeCond):
+                    return cmp(len(b.likestr), len(a.likestr))  # longest likestr first
+                return 0
+            if isinstance(a, ExactCond):
+                return -1
+            if isinstance(b, ExactCond):
+                return 1
+            if isinstance(a, PrefixCond):
+                return -1
+            if isinstance(b, PrefixCond):
+                return 1
+            # leave all unknown condition callables alone as equals
+            return 0
+
+        conditionlist = conditions.items()
+        conditionlist.sort(cmp_conditions)
+
+        # Apply conditions to column data to find what we want
+        cur = self.db.cursor()
+        column_num = -1
+        for column, condition in conditionlist :
+            column_num = column_num + 1
+            searchkey = _search_col_data_key(table, column)
+            # speedup: don't linear search columns within loop
+            if column in columns :
+                savethiscolumndata = 1  # save the data for return
+            else :
+                savethiscolumndata = 0  # data only used for selection
+
+            try:
+                key, data = cur.set_range(searchkey)
+                while key[:len(searchkey)] == searchkey :
+                    # extract the rowid from the key
+                    rowid = key[-_rowid_str_len:]
+
+                    if not rejected_rowids.has_key(rowid) :
+                        # if no condition was specified or the condition
+                        # succeeds, add row to our match list.
+                        if not condition or condition(data) :
+                            # only create new entries in matcing_rowids on
+                            # the first pass, otherwise reject the
+                            # rowid as it must not have matched
+                            # the previous passes
+                            if column_num == 0 :
+                                if not matching_rowids.has_key(rowid) :
+                                    matching_rowids[rowid] = {}
+                                if savethiscolumndata :
+                                    matching_rowids[rowid][column] = data
+                            else :
+                                rejected_rowids[rowid] = rowid
+                        else :
+                            if matching_rowids.has_key(rowid) :
+                                del matching_rowids[rowid]
+                            rejected_rowids[rowid] = rowid
+
+                    key, data = cur.next()
+
+            except DBError, dberror:
+                if dberror[0] != DB_NOTFOUND :
+                    raise
+                continue
+
+        cur.close()
+
+        # we're done selecting rows, garbage collect the reject list
+        del rejected_rowids
+
+        # extract any remaining desired column data from the
+        # database for the matching rows.
+        if len(columns) > 0 :
+            for rowid, rowdata in matching_rowids.items() :
+                for column in columns :
+                    if rowdata.has_key(column) :
+                        continue
+                    try:
+                        rowdata[column] = self.db.get(_data_key(table, column, rowid))
+                    except DBError, dberror:
+                        if dberror[0] != DB_NOTFOUND :
+                            raise
+                        rowdata[column] = None
+
+        # return the matches
+        return matching_rowids
+
+
+    def Drop(self, table) :
+        """Remove an entire table from the database
+        """
+        txn = None
+        try:
+            txn = self.env.txn_begin()
+
+            # delete the column list
+            self.db.delete(_columns_key(table), txn)
+
+            cur = self.db.cursor(txn)
+
+            # delete all keys containing this tables column and row info
+            table_key = _search_all_data_key(table)
+            while 1 :
+                try:
+                    key, data = cur.set_range(table_key)
+                except DBNotFoundError:
+                    break
+                # only delete items in this table
+                if key[:len(table_key)] != table_key :
+                    break
+                cur.delete()
+
+            # delete all rowids used by this table
+            table_key = _search_rowid_key(table)
+            while 1 :
+                try:
+                    key, data = cur.set_range(table_key)
+                except DBNotFoundError:
+                    break
+                # only delete items in this table
+                if key[:len(table_key)] != table_key :
+                    break
+                cur.delete()
+
+            cur.close()
+
+            # delete the tablename from the table name list
+            tablelist = pickle.loads(self.db.get(_table_names_key, txn=txn, flags=DB_RMW))
+            try:
+                tablelist.remove(table)
+            except ValueError:
+                pass  # hmm, it wasn't there, oh well, that's what we want.
+            self.db.delete(_table_names_key, txn)  # delete 1st, incase we opened with DB_DUP
+            self.db.put(_table_names_key, pickle.dumps(tablelist, 1), txn=txn)
+
+            txn.commit()
+            txn = None
+
+            if self.__tablecolumns.has_key(table) :
+                del self.__tablecolumns[table]
+
+        except DBError, dberror:
+            if txn :
+                txn.abort()
+            raise TableDBError, dberror[1]
+
diff --git a/Lib/bsddb/dbutils.py b/Lib/bsddb/dbutils.py
new file mode 100644
index 0000000..fe08407
--- /dev/null
+++ b/Lib/bsddb/dbutils.py
@@ -0,0 +1,69 @@
+#------------------------------------------------------------------------
+#
+# In my performance tests, using this (as in dbtest.py test4) is
+# slightly slower than simply compiling _db.c with MYDB_THREAD
+# undefined to prevent multithreading support in the C module.
+# Using NoDeadlockDb also prevent deadlocks from mutliple processes
+# accessing the same database.
+#
+# Copyright (C) 2000 Autonomous Zone Industries
+#
+# License:      This is free software.  You may use this software for any
+#               purpose including modification/redistribution, so long as
+#               this header remains intact and that you do not claim any
+#               rights of ownership or authorship of this software.  This
+#               software has been tested, but no warranty is expressed or
+#               implied.
+#
+# Author: Gregory P. Smith <greg@electricrain.com>
+#
+# Note: I don't know how useful this is in reality since when a
+#       DBDeadlockError happens the current transaction is supposed to be
+#       aborted.  If it doesn't then when the operation is attempted again
+#       the deadlock is still happening...
+#       --Robin
+#
+#------------------------------------------------------------------------
+
+
+#
+# import the time.sleep function in a namespace safe way to allow
+# "from bsddb3.db import *"
+#
+from time import sleep
+_sleep = sleep
+del sleep
+
+import _db
+
+_deadlock_MinSleepTime = 1.0/64  # always sleep at least N seconds between retrys
+_deadlock_MaxSleepTime = 1.0     # never sleep more than N seconds between retrys
+
+
+def DeadlockWrap(function, *_args, **_kwargs):
+    """DeadlockWrap(function, *_args, **_kwargs) - automatically retries
+    function in case of a database deadlock.
+
+    This is a DeadlockWrapper method which DB calls can be made using to
+    preform infinite retrys with sleeps in between when a DBLockDeadlockError
+    exception is raised in a database call:
+
+        d = DB(...)
+        d.open(...)
+        DeadlockWrap(d.put, "foo", data="bar")  # set key "foo" to "bar"
+    """
+    sleeptime = _deadlock_MinSleepTime
+    while (1) :
+        try:
+            return apply(function, _args, _kwargs)
+        except _db.DBLockDeadlockError:
+            print 'DeadlockWrap sleeping ', sleeptime
+            _sleep(sleeptime)
+            # exponential backoff in the sleep time
+            sleeptime = sleeptime * 2
+            if sleeptime > _deadlock_MaxSleepTime :
+                sleeptime = _deadlock_MaxSleepTime
+
+
+#------------------------------------------------------------------------
+
diff --git a/Modules/Setup.dist b/Modules/Setup.dist
index b8532ab..b4635cc 100644
--- a/Modules/Setup.dist
+++ b/Modules/Setup.dist
@@ -393,25 +393,30 @@ GLHACK=-Dclear=__GLclear
 #gdbm gdbmmodule.c -I/usr/local/include -L/usr/local/lib -lgdbm
 
 
-# Berkeley DB interface.
+# Sleepycat Berkeley DB interface.
 #
-# This requires the Berkeley DB code, see
-# ftp://ftp.cs.berkeley.edu/pub/4bsd/db.1.85.tar.gz
+# This requires the Sleepycat DB code, see http://www.sleepycat.com/
+# The minimum supported version of that library is 3.0.
 #
-# Edit the variables DB and DBPORT to point to the db top directory
+# Edit the variables DB and DBLIBVERto point to the db top directory
 # and the subdirectory of PORT where you built it.
-#
-# (See http://electricrain.com/greg/python/bsddb3/ for an interface to
-# BSD DB 3.x.)
-
-# Note: If a db.h file is found by configure, bsddb will be enabled
-# automatically via Setup.config.in.  It only needs to be enabled here
-# if it is not automatically enabled there; check the generated
-# Setup.config before enabling it here.
+#DB=/usr/local/BerkeleyDB.4.0
+#DBLIBVER=4.0
+#DBINC=$(DB)/include
+#DBLIB=$(DB)/lib
+#_bsddb _bsddb.c -I$(DBINC) -L$(DBLIB) -ldb-$(DBLIBVER
 
+# Historical Berkeley DB 1.85
+#
+# This requires the Berkeley DB code, see
+# ftp://ftp.cs.berkeley.edu/pub/4bsd/db.1.85.tar.gz
+#
+# This module is deprecated; the historical BSDDB library has bugs
+# that can cause data corruption. If you can, use the Sleepycat library
+# instead.
 #DB=/depot/sundry/src/berkeley-db/db.1.85
 #DBPORT=$(DB)/PORT/irix.5.3
-#bsddb bsddbmodule.c -I$(DBPORT)/include -I$(DBPORT) $(DBPORT)/libdb.a
+#bsddb185 bsddbmodule.c -I$(DBPORT)/include -I$(DBPORT) $(DBPORT)/libdb.a
 
 
 
diff --git a/Modules/_bsddb.c b/Modules/_bsddb.c
new file mode 100644
index 0000000..f3afdc9
--- /dev/null
+++ b/Modules/_bsddb.c
@@ -0,0 +1,4246 @@
+/*----------------------------------------------------------------------
+  Copyright (c) 1999-2001, Digital Creations, Fredericksburg, VA, USA
+  and Andrew Kuchling. All rights reserved.
+
+  Redistribution and use in source and binary forms, with or without
+  modification, are permitted provided that the following conditions are
+  met:
+
+    o Redistributions of source code must retain the above copyright
+      notice, this list of conditions, and the disclaimer that follows.
+
+    o Redistributions in binary form must reproduce the above copyright
+      notice, this list of conditions, and the following disclaimer in
+      the documentation and/or other materials provided with the
+      distribution.
+
+    o Neither the name of Digital Creations nor the names of its
+      contributors may be used to endorse or promote products derived
+      from this software without specific prior written permission.
+
+  THIS SOFTWARE IS PROVIDED BY DIGITAL CREATIONS AND CONTRIBUTORS *AS
+  IS* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
+  TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+  PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL DIGITAL
+  CREATIONS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
+  INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
+  BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
+  OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+  ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR
+  TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE
+  USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH
+  DAMAGE.
+------------------------------------------------------------------------*/
+
+
+/*
+ * Handwritten code to wrap version 3.x of the Berkeley DB library,
+ * written to replace a SWIG-generated file.
+ *
+ * This module was started by Andrew Kuchling to remove the dependency
+ * on SWIG in a package by Gregory P. Smith <greg@electricrain.com> who
+ * based his work on a similar package by Robin Dunn <robin@alldunn.com>
+ * which wrapped Berkeley DB 2.7.x.
+ *
+ * Development of this module has now returned full circle back to
+ * Robin Dunn who is working in behalf of Digital Creations to complete
+ * the wrapping of the DB 3.x API and to build a solid unit test suite.
+ *
+ * This module contains 5 types:
+ *
+ * DB           (Database)
+ * DBCursor     (Database Cursor)
+ * DBEnv        (database environment)
+ * DBTxn        (An explicit database transaction)
+ * DBLock       (A lock handle)
+ *
+ */
+
+/* --------------------------------------------------------------------- */
+
+/*
+ * Portions of this module, associated unit tests and build scripts are the
+ * result of a contract with The Written Word (http://thewrittenword.com/)
+ * Many thanks go out to them for causing me to raise the bar on quality and
+ * functionality, resulting in a better bsddb3 package for all of us to use.
+ *
+ * --Robin
+ */
+
+/* --------------------------------------------------------------------- */
+
+#include <Python.h>
+#include <db.h>
+
+/* --------------------------------------------------------------------- */
+/* Various macro definitions */
+
+#define PY_BSDDB_VERSION "3.4.0"
+
+/* 40 = 4.0, 33 = 3.3; this will break if the second number is > 9 */
+#define DBVER (DB_VERSION_MAJOR * 10 + DB_VERSION_MINOR)
+
+static char *orig_rcs_id = "/Id: _db.c,v 1.44 2002/06/07 18:24:00 greg Exp /";
+static char *rcs_id = "$Id$";
+
+
+#ifdef WITH_THREAD
+
+/* These are for when calling Python --> C */
+#define MYDB_BEGIN_ALLOW_THREADS Py_BEGIN_ALLOW_THREADS;
+#define MYDB_END_ALLOW_THREADS Py_END_ALLOW_THREADS;
+
+/* and these are for calling C --> Python */
+static PyInterpreterState* _db_interpreterState = NULL;
+#define MYDB_BEGIN_BLOCK_THREADS {                              \
+        PyThreadState* prevState;                               \
+        PyThreadState* newState;                                \
+        PyEval_AcquireLock();                                   \
+        newState  = PyThreadState_New(_db_interpreterState);    \
+        prevState = PyThreadState_Swap(newState);
+
+#define MYDB_END_BLOCK_THREADS                                  \
+        newState = PyThreadState_Swap(prevState);               \
+        PyThreadState_Clear(newState);                          \
+        PyEval_ReleaseLock();                                   \
+        PyThreadState_Delete(newState);                         \
+        }
+
+#else
+
+#define MYDB_BEGIN_ALLOW_THREADS
+#define MYDB_END_ALLOW_THREADS
+#define MYDB_BEGIN_BLOCK_THREADS
+#define MYDB_END_BLOCK_THREADS
+
+#endif
+
+
+/* What is the default behaviour when DB->get or DBCursor->get returns a
+   DB_NOTFOUND error?  Return None or raise an exception? */
+#define GET_RETURNS_NONE_DEFAULT 1
+
+
+/* Should DB_INCOMPLETE be turned into a warning or an exception? */
+#define INCOMPLETE_IS_WARNING 1
+
+/* --------------------------------------------------------------------- */
+/* Exceptions */
+
+static PyObject* DBError;               /* Base class, all others derive from this */
+static PyObject* DBKeyEmptyError;       /* DB_KEYEMPTY */
+static PyObject* DBKeyExistError;       /* DB_KEYEXIST */
+static PyObject* DBLockDeadlockError;   /* DB_LOCK_DEADLOCK */
+static PyObject* DBLockNotGrantedError; /* DB_LOCK_NOTGRANTED */
+static PyObject* DBNotFoundError;       /* DB_NOTFOUND: also derives from KeyError */
+static PyObject* DBOldVersionError;     /* DB_OLD_VERSION */
+static PyObject* DBRunRecoveryError;    /* DB_RUNRECOVERY */
+static PyObject* DBVerifyBadError;      /* DB_VERIFY_BAD */
+static PyObject* DBNoServerError;       /* DB_NOSERVER */
+static PyObject* DBNoServerHomeError;   /* DB_NOSERVER_HOME */
+static PyObject* DBNoServerIDError;     /* DB_NOSERVER_ID */
+#if (DBVER >= 33)
+static PyObject* DBPageNotFoundError;   /* DB_PAGE_NOTFOUND */
+static PyObject* DBSecondaryBadError;   /* DB_SECONDARY_BAD */
+#endif
+
+#if !INCOMPLETE_IS_WARNING
+static PyObject* DBIncompleteError;     /* DB_INCOMPLETE */
+#endif
+
+static PyObject* DBInvalidArgError;     /* EINVAL */
+static PyObject* DBAccessError;         /* EACCES */
+static PyObject* DBNoSpaceError;        /* ENOSPC */
+static PyObject* DBNoMemoryError;       /* ENOMEM */
+static PyObject* DBAgainError;          /* EAGAIN */
+static PyObject* DBBusyError;           /* EBUSY  */
+static PyObject* DBFileExistsError;     /* EEXIST */
+static PyObject* DBNoSuchFileError;     /* ENOENT */
+static PyObject* DBPermissionsError;    /* EPERM  */
+
+
+
+/* --------------------------------------------------------------------- */
+/* Structure definitions */
+
+typedef struct {
+    PyObject_HEAD
+    DB_ENV*     db_env;
+    int         flags;             /* saved flags from open() */
+    int         closed;
+    int         getReturnsNone;
+} DBEnvObject;
+
+
+typedef struct {
+    PyObject_HEAD
+    DB*             db;
+    DBEnvObject*    myenvobj;  /* PyObject containing the DB_ENV */
+    int             flags;     /* saved flags from open() */
+    int             setflags;  /* saved flags from set_flags() */
+    int             haveStat;
+    int             getReturnsNone;
+#if (DBVER >= 33)
+    PyObject*       associateCallback;
+    int             primaryDBType;
+#endif
+} DBObject;
+
+
+typedef struct {
+    PyObject_HEAD
+    DBC*            dbc;
+    DBObject*       mydb;
+} DBCursorObject;
+
+
+typedef struct {
+    PyObject_HEAD
+    DB_TXN*         txn;
+} DBTxnObject;
+
+
+typedef struct {
+    PyObject_HEAD
+    DB_LOCK         lock;
+} DBLockObject;
+
+
+
+staticforward PyTypeObject DB_Type, DBCursor_Type, DBEnv_Type, DBTxn_Type, DBLock_Type;
+
+#define DBObject_Check(v)           ((v)->ob_type == &DB_Type)
+#define DBCursorObject_Check(v)     ((v)->ob_type == &DBCursor_Type)
+#define DBEnvObject_Check(v)        ((v)->ob_type == &DBEnv_Type)
+#define DBTxnObject_Check(v)        ((v)->ob_type == &DBTxn_Type)
+#define DBLockObject_Check(v)       ((v)->ob_type == &DBLock_Type)
+
+
+/* --------------------------------------------------------------------- */
+/* Utility macros and functions */
+
+#define RETURN_IF_ERR()          \
+    if (makeDBError(err)) {      \
+        return NULL;             \
+    }
+
+#define RETURN_NONE()  Py_INCREF(Py_None); return Py_None;
+
+#define CHECK_DB_NOT_CLOSED(dbobj)                              \
+    if (dbobj->db == NULL) {                                    \
+        PyErr_SetObject(DBError, Py_BuildValue("(is)", 0,       \
+                                "DB object has been closed"));  \
+        return NULL;                                            \
+    }
+
+#define CHECK_ENV_NOT_CLOSED(env)                               \
+    if (env->db_env == NULL) {                                  \
+        PyErr_SetObject(DBError, Py_BuildValue("(is)", 0,       \
+                                 "DBEnv object has been closed"));\
+        return NULL;                                            \
+    }
+
+#define CHECK_CURSOR_NOT_CLOSED(curs) \
+    if (curs->dbc == NULL) {                                  \
+        PyErr_SetObject(DBError, Py_BuildValue("(is)", 0,       \
+                                 "DBCursor object has been closed"));\
+        return NULL;                                            \
+    }
+
+
+
+#define CHECK_DBFLAG(mydb, flag)    (((mydb)->flags & (flag)) || \
+                                     (((mydb)->myenvobj != NULL) && ((mydb)->myenvobj->flags & (flag))))
+
+#define CLEAR_DBT(dbt)              (memset(&(dbt), 0, sizeof(dbt)))
+
+#define FREE_DBT(dbt)               if ((dbt.flags & (DB_DBT_MALLOC|DB_DBT_REALLOC)) && \
+                                         dbt.data != NULL) { free(dbt.data); }
+
+
+static int makeDBError(int err);
+
+
+/* Return the access method type of the DBObject */
+static int _DB_get_type(DBObject* self)
+{
+#if (DBVER >= 33)
+    DBTYPE type;
+    int err;
+    err = self->db->get_type(self->db, &type);
+    if (makeDBError(err)) {
+        return -1;
+    }
+    return type;
+#else
+    return self->db->get_type(self->db);
+#endif
+}
+
+
+/* Create a DBT structure (containing key and data values) from Python
+   strings.  Returns 1 on success, 0 on an error. */
+static int make_dbt(PyObject* obj, DBT* dbt)
+{
+    CLEAR_DBT(*dbt);
+    if (obj == Py_None) {
+        /* no need to do anything, the structure has already been zeroed */
+    }
+    else if (!PyArg_Parse(obj, "s#", &dbt->data, &dbt->size)) {
+        PyErr_SetString(PyExc_TypeError,
+                        "Key and Data values must be of type string or None.");
+        return 0;
+    }
+    return 1;
+}
+
+
+/* Recno and Queue DBs can have integer keys.  This function figures out
+   what's been given, verifies that it's allowed, and then makes the DBT.
+
+   Caller should call FREE_DBT(key) when done. */
+static int make_key_dbt(DBObject* self, PyObject* keyobj, DBT* key, int* pflags)
+{
+    db_recno_t recno;
+    int type;
+
+    CLEAR_DBT(*key);
+    if (keyobj == Py_None) {  /* TODO: is None really okay for keys? */
+        /* no need to do anything, the structure has already been zeroed */
+    }
+
+    else if (PyString_Check(keyobj)) {
+        /* verify access method type */
+        type = _DB_get_type(self);
+        if (type == -1)
+            return 0;
+        if (type == DB_RECNO || type == DB_QUEUE) {
+            PyErr_SetString(PyExc_TypeError, "String keys not allowed for Recno and Queue DB's");
+            return 0;
+        }
+
+        key->data = PyString_AS_STRING(keyobj);
+        key->size = PyString_GET_SIZE(keyobj);
+    }
+
+    else if (PyInt_Check(keyobj)) {
+        /* verify access method type */
+        type = _DB_get_type(self);
+        if (type == -1)
+            return 0;
+        if (type == DB_BTREE && pflags != NULL) {
+            /* if BTREE then an Integer key is allowed with the DB_SET_RECNO flag */
+            *pflags |= DB_SET_RECNO;
+        }
+        else if (type != DB_RECNO && type != DB_QUEUE) {
+            PyErr_SetString(PyExc_TypeError, "Integer keys only allowed for Recno and Queue DB's");
+            return 0;
+        }
+
+        /* Make a key out of the requested recno, use allocated space so DB will
+           be able to realloc room for the real key if needed. */
+        recno = PyInt_AS_LONG(keyobj);
+        key->data = malloc(sizeof(db_recno_t));
+        if (key->data == NULL) {
+            PyErr_SetString(PyExc_MemoryError, "Key memory allocation failed");
+            return 0;
+        }
+        key->ulen = key->size = sizeof(db_recno_t);
+        memcpy(key->data, &recno, sizeof(db_recno_t));
+        key->flags = DB_DBT_REALLOC;
+    }
+    else {
+        PyErr_Format(PyExc_TypeError,
+                     "String or Integer object expected for key, %s found",
+                     keyobj->ob_type->tp_name);
+        return 0;
+    }
+
+    return 1;
+}
+
+
+/* Add partial record access to an existing DBT data struct.
+   If dlen and doff are set, then the DB_DBT_PARTIAL flag will be set
+   and the data storage/retrieval will be done using dlen and doff. */
+static int add_partial_dbt(DBT* d, int dlen, int doff) {
+    /* if neither were set we do nothing (-1 is the default value) */
+    if ((dlen == -1) && (doff == -1)) {
+        return 1;
+    }
+
+    if ((dlen < 0) || (doff < 0)) {
+        PyErr_SetString(PyExc_TypeError, "dlen and doff must both be >= 0");
+        return 0;
+    }
+
+    d->flags = d->flags | DB_DBT_PARTIAL;
+    d->dlen = (unsigned int) dlen;
+    d->doff = (unsigned int) doff;
+    return 1;
+}
+
+
+/* Callback used to save away more information about errors from the DB library. */
+static char _db_errmsg[1024];
+static void _db_errorCallback(const char* prefix, char* msg)
+{
+    strcpy(_db_errmsg, msg);
+}
+
+
+/* make a nice exception object to raise for errors. */
+static int makeDBError(int err)
+{
+    char errTxt[2048];  /* really big, just in case... */
+    PyObject* errObj = NULL;
+    int exceptionRaised = 0;
+
+    switch (err) {
+        case 0:                     /* successful, no error */      break;
+
+        case DB_INCOMPLETE:
+#if INCOMPLETE_IS_WARNING
+            strcpy(errTxt, db_strerror(err));
+            if (_db_errmsg[0]) {
+                strcat(errTxt, " -- ");
+                strcat(errTxt, _db_errmsg);
+                _db_errmsg[0] = 0;
+            }
+#if PYTHON_API_VERSION >= 1010 /* if Python 2.1 or better use warning framework */
+            exceptionRaised = PyErr_Warn(PyExc_RuntimeWarning, errTxt);
+#else
+            fprintf(stderr, errTxt);
+            fprintf(stderr, "\n");
+#endif
+
+#else  /* do an exception instead */
+        errObj = DBIncompleteError;
+#endif
+        break;
+
+        case DB_KEYEMPTY:           errObj = DBKeyEmptyError;       break;
+        case DB_KEYEXIST:           errObj = DBKeyExistError;       break;
+        case DB_LOCK_DEADLOCK:      errObj = DBLockDeadlockError;   break;
+        case DB_LOCK_NOTGRANTED:    errObj = DBLockNotGrantedError; break;
+        case DB_NOTFOUND:           errObj = DBNotFoundError;       break;
+        case DB_OLD_VERSION:        errObj = DBOldVersionError;     break;
+        case DB_RUNRECOVERY:        errObj = DBRunRecoveryError;    break;
+        case DB_VERIFY_BAD:         errObj = DBVerifyBadError;      break;
+        case DB_NOSERVER:           errObj = DBNoServerError;       break;
+        case DB_NOSERVER_HOME:      errObj = DBNoServerHomeError;   break;
+        case DB_NOSERVER_ID:        errObj = DBNoServerIDError;     break;
+#if (DBVER >= 33)
+        case DB_PAGE_NOTFOUND:      errObj = DBPageNotFoundError;   break;
+        case DB_SECONDARY_BAD:      errObj = DBSecondaryBadError;   break;
+#endif
+
+        case EINVAL:  errObj = DBInvalidArgError;   break;
+        case EACCES:  errObj = DBAccessError;       break;
+        case ENOSPC:  errObj = DBNoSpaceError;      break;
+        case ENOMEM:  errObj = DBNoMemoryError;     break;
+        case EAGAIN:  errObj = DBAgainError;        break;
+        case EBUSY :  errObj = DBBusyError;         break;
+        case EEXIST:  errObj = DBFileExistsError;   break;
+        case ENOENT:  errObj = DBNoSuchFileError;   break;
+        case EPERM :  errObj = DBPermissionsError;  break;
+
+        default:      errObj = DBError;             break;
+    }
+
+    if (errObj != NULL) {
+        strcpy(errTxt, db_strerror(err));
+        if (_db_errmsg[0]) {
+            strcat(errTxt, " -- ");
+            strcat(errTxt, _db_errmsg);
+            _db_errmsg[0] = 0;
+        }
+        PyErr_SetObject(errObj, Py_BuildValue("(is)", err, errTxt));
+    }
+
+    return ((errObj != NULL) || exceptionRaised);
+}
+
+
+
+/* set a type exception */
+static void makeTypeError(char* expected, PyObject* found)
+{
+    PyErr_Format(PyExc_TypeError, "Expected %s argument, %s found.",
+                 expected, found->ob_type->tp_name);
+}
+
+
+/* verify that an obj is either None or a DBTxn, and set the txn pointer */
+static int checkTxnObj(PyObject* txnobj, DB_TXN** txn)
+{
+    if (txnobj == Py_None || txnobj == NULL) {
+        *txn = NULL;
+        return 1;
+    }
+    if (DBTxnObject_Check(txnobj)) {
+        *txn = ((DBTxnObject*)txnobj)->txn;
+        return 1;
+    }
+    else
+        makeTypeError("DBTxn", txnobj);
+    return 0;
+}
+
+
+/* Delete a key from a database
+  Returns 0 on success, -1 on an error.  */
+static int _DB_delete(DBObject* self, DB_TXN *txn, DBT *key, int flags)
+{
+    int err;
+
+    MYDB_BEGIN_ALLOW_THREADS;
+    err = self->db->del(self->db, txn, key, 0);
+    MYDB_END_ALLOW_THREADS;
+    if (makeDBError(err)) {
+        return -1;
+    }
+    self->haveStat = 0;
+    return 0;
+}
+
+
+/* Store a key into a database
+   Returns 0 on success, -1 on an error.  */
+static int _DB_put(DBObject* self, DB_TXN *txn, DBT *key, DBT *data, int flags)
+{
+    int err;
+
+    MYDB_BEGIN_ALLOW_THREADS;
+    err = self->db->put(self->db, txn, key, data, flags);
+    MYDB_END_ALLOW_THREADS;
+    if (makeDBError(err)) {
+        return -1;
+    }
+    self->haveStat = 0;
+    return 0;
+}
+
+/* Get a key/data pair from a cursor */
+static PyObject* _DBCursor_get(DBCursorObject* self, int extra_flags,
+			       PyObject *args, PyObject *kwargs, char *format)
+{
+    int err;
+    PyObject* retval = NULL;
+    DBT key, data;
+    int dlen = -1;
+    int doff = -1;
+    int flags = 0;
+    char* kwnames[] = { "flags", "dlen", "doff", NULL };
+
+    if (!PyArg_ParseTupleAndKeywords(args, kwargs, format, kwnames,
+				     &flags, &dlen, &doff)) 
+      return NULL;
+
+    CHECK_CURSOR_NOT_CLOSED(self);
+
+    flags |= extra_flags;
+    CLEAR_DBT(key);
+    CLEAR_DBT(data);
+    if (CHECK_DBFLAG(self->mydb, DB_THREAD)) {
+        /* Tell BerkeleyDB to malloc the return value (thread safe) */
+        data.flags = DB_DBT_MALLOC;
+        key.flags = DB_DBT_MALLOC;
+    }
+    if (!add_partial_dbt(&data, dlen, doff))
+        return NULL;
+
+    MYDB_BEGIN_ALLOW_THREADS;
+    err = self->dbc->c_get(self->dbc, &key, &data, flags);
+    MYDB_END_ALLOW_THREADS;
+
+    if ((err == DB_NOTFOUND) && self->mydb->getReturnsNone) {
+        Py_INCREF(Py_None);
+        retval = Py_None;
+    }
+    else if (makeDBError(err)) {
+        retval = NULL;
+    }
+    else {  /* otherwise, success! */
+
+        /* if Recno or Queue, return the key as an Int */
+        switch (_DB_get_type(self->mydb)) {
+        case -1:
+            retval = NULL;
+            break;
+
+        case DB_RECNO:
+        case DB_QUEUE:
+            retval = Py_BuildValue("is#", *((db_recno_t*)key.data),
+                                   data.data, data.size);
+            break;
+        case DB_HASH:
+        case DB_BTREE:
+        default:
+            retval = Py_BuildValue("s#s#", key.data, key.size,
+                                   data.data, data.size);
+            break;
+        }
+    }
+    if (!err) {
+        FREE_DBT(key);
+        FREE_DBT(data);
+    }
+    return retval;
+}
+
+
+/* add an integer to a dictionary using the given name as a key */
+static void _addIntToDict(PyObject* dict, char *name, int value)
+{
+    PyObject* v = PyInt_FromLong((long) value);
+    if (!v || PyDict_SetItemString(dict, name, v))
+        PyErr_Clear();
+
+    Py_XDECREF(v);
+}
+
+
+
+
+/* --------------------------------------------------------------------- */
+/* Allocators and deallocators */
+
+static DBObject*
+newDBObject(DBEnvObject* arg, int flags)
+{
+    DBObject* self;
+    DB_ENV* db_env = NULL;
+    int err;
+
+#if PYTHON_API_VERSION <= 1007
+    /* 1.5 compatibility */
+    self = PyObject_NEW(DBObject, &DB_Type);
+#else
+    self = PyObject_New(DBObject, &DB_Type);
+#endif
+
+    if (self == NULL)
+        return NULL;
+
+    self->haveStat = 0;
+    self->flags = 0;
+    self->setflags = 0;
+    self->myenvobj = NULL;
+#if (DBVER >= 33)
+    self->associateCallback = NULL;
+    self->primaryDBType = 0;
+#endif
+
+    /* keep a reference to our python DBEnv object */
+    if (arg) {
+        Py_INCREF(arg);
+        self->myenvobj = arg;
+        db_env = arg->db_env;
+    }
+
+    if (self->myenvobj)
+        self->getReturnsNone = self->myenvobj->getReturnsNone;
+    else
+        self->getReturnsNone = GET_RETURNS_NONE_DEFAULT;
+
+    MYDB_BEGIN_ALLOW_THREADS;
+    err = db_create(&self->db, db_env, flags);
+    self->db->set_errcall(self->db, _db_errorCallback);
+#if (DBVER >= 33)
+    self->db->app_private = (void*)self;
+#endif
+    MYDB_END_ALLOW_THREADS;
+    if (makeDBError(err)) {
+        if (self->myenvobj) {
+            Py_DECREF(self->myenvobj);
+            self->myenvobj = NULL;
+        }
+        self = NULL;
+    }
+    return self;
+}
+
+
+static void
+DB_dealloc(DBObject* self)
+{
+    if (self->db != NULL) {
+        /* avoid closing a DB when its DBEnv has been closed out from under it */
+        if (!self->myenvobj ||
+            (self->myenvobj && self->myenvobj->db_env)) {
+            MYDB_BEGIN_ALLOW_THREADS;
+            self->db->close(self->db, 0);
+            MYDB_END_ALLOW_THREADS;
+#if PYTHON_API_VERSION >= 1010 /* if Python 2.1 or better use warning framework */
+        } else {
+            PyErr_Warn(PyExc_RuntimeWarning,
+                "DB could not be closed in destructor: DBEnv already closed");
+#endif
+        }
+        self->db = NULL;
+    }
+    if (self->myenvobj) {
+        Py_DECREF(self->myenvobj);
+        self->myenvobj = NULL;
+    }
+#if (DBVER >= 33)
+    if (self->associateCallback != NULL) {
+        Py_DECREF(self->associateCallback);
+        self->associateCallback = NULL;
+    }
+#endif
+#if PYTHON_API_VERSION <= 1007
+    PyMem_DEL(self);
+#else
+    PyObject_Del(self);
+#endif
+}
+
+
+static DBCursorObject*
+newDBCursorObject(DBC* dbc, DBObject* db)
+{
+    DBCursorObject* self;
+#if PYTHON_API_VERSION <= 1007
+    self = PyObject_NEW(DBCursorObject, &DBCursor_Type);
+#else
+    self = PyObject_New(DBCursorObject, &DBCursor_Type);
+#endif
+    if (self == NULL)
+        return NULL;
+
+    self->dbc = dbc;
+    self->mydb = db;
+    Py_INCREF(self->mydb);
+    return self;
+}
+
+
+static void
+DBCursor_dealloc(DBCursorObject* self)
+{
+    int err;
+    if (self->dbc != NULL) {
+        MYDB_BEGIN_ALLOW_THREADS;
+        err = self->dbc->c_close(self->dbc);
+        self->dbc = NULL;
+        MYDB_END_ALLOW_THREADS;
+    }
+    Py_XDECREF( self->mydb );
+#if PYTHON_API_VERSION <= 1007
+    PyMem_DEL(self);
+#else
+    PyObject_Del(self);
+#endif
+}
+
+
+static DBEnvObject*
+newDBEnvObject(int flags)
+{
+    int err;
+    DBEnvObject* self;
+#if PYTHON_API_VERSION <= 1007
+    self = PyObject_NEW(DBEnvObject, &DBEnv_Type);
+#else
+    self = PyObject_New(DBEnvObject, &DBEnv_Type);
+#endif
+
+    if (self == NULL)
+        return NULL;
+
+    self->closed = 1;
+    self->flags = flags;
+    self->getReturnsNone = GET_RETURNS_NONE_DEFAULT;
+
+    MYDB_BEGIN_ALLOW_THREADS;
+    err = db_env_create(&self->db_env, flags);
+    MYDB_END_ALLOW_THREADS;
+    if (makeDBError(err)) {
+        self = NULL;
+    }
+    else {
+        self->db_env->set_errcall(self->db_env, _db_errorCallback);
+    }
+    return self;
+}
+
+
+static void
+DBEnv_dealloc(DBEnvObject* self)
+{
+    if (!self->closed) {
+        MYDB_BEGIN_ALLOW_THREADS;
+        self->db_env->close(self->db_env, 0);
+        MYDB_END_ALLOW_THREADS;
+    }
+#if PYTHON_API_VERSION <= 1007
+    PyMem_DEL(self);
+#else
+    PyObject_Del(self);
+#endif
+}
+
+
+static DBTxnObject*
+newDBTxnObject(DBEnvObject* myenv, DB_TXN *parent, int flags)
+{
+    int err;
+    DBTxnObject* self;
+
+#if PYTHON_API_VERSION <= 1007
+    self = PyObject_NEW(DBTxnObject, &DBTxn_Type);
+#else
+    self = PyObject_New(DBTxnObject, &DBTxn_Type);
+#endif
+    if (self == NULL)
+        return NULL;
+
+    MYDB_BEGIN_ALLOW_THREADS;
+#if (DBVER >= 40)
+    err = myenv->db_env->txn_begin(myenv->db_env, parent, &(self->txn), flags);
+#else
+    err = txn_begin(myenv->db_env, parent, &(self->txn), flags);
+#endif
+    MYDB_END_ALLOW_THREADS;
+    if (makeDBError(err)) {
+        self = NULL;
+    }
+    return self;
+}
+
+
+static void
+DBTxn_dealloc(DBTxnObject* self)
+{
+    /* XXX nothing to do for transaction objects?!? */
+
+    /* TODO: if it hasn't been commited, should we abort it? */
+
+#if PYTHON_API_VERSION <= 1007
+    PyMem_DEL(self);
+#else
+    PyObject_Del(self);
+#endif
+}
+
+
+static DBLockObject*
+newDBLockObject(DBEnvObject* myenv, u_int32_t locker, DBT* obj,
+                db_lockmode_t lock_mode, int flags)
+{
+    int err;
+    DBLockObject* self;
+
+#if PYTHON_API_VERSION <= 1007
+    self = PyObject_NEW(DBLockObject, &DBLock_Type);
+#else
+    self = PyObject_New(DBLockObject, &DBLock_Type);
+#endif
+    if (self == NULL)
+        return NULL;
+
+    MYDB_BEGIN_ALLOW_THREADS;
+#if (DBVER >= 40)
+    err = myenv->db_env->lock_get(myenv->db_env, locker, flags, obj, lock_mode, &self->lock);
+#else
+    err = lock_get(myenv->db_env, locker, flags, obj, lock_mode, &self->lock);
+#endif
+    MYDB_END_ALLOW_THREADS;
+    if (makeDBError(err)) {
+        self = NULL;
+    }
+
+    return self;
+}
+
+
+static void
+DBLock_dealloc(DBLockObject* self)
+{
+    /* TODO: if it hasn't been released, should we do it? */
+
+#if PYTHON_API_VERSION <= 1007
+    PyMem_DEL(self);
+#else
+    PyObject_Del(self);
+#endif
+}
+
+
+/* --------------------------------------------------------------------- */
+/* DB methods */
+
+static PyObject*
+DB_append(DBObject* self, PyObject* args)
+{
+    PyObject* txnobj = NULL;
+    PyObject* dataobj;
+    db_recno_t recno;
+    DBT key, data;
+    DB_TXN *txn = NULL;
+
+    if (!PyArg_ParseTuple(args, "O|O:append", &dataobj, &txnobj))
+        return NULL;
+
+    CHECK_DB_NOT_CLOSED(self);
+
+    /* make a dummy key out of a recno */
+    recno = 0;
+    CLEAR_DBT(key);
+    key.data = &recno;
+    key.size = sizeof(recno);
+    key.ulen = key.size;
+    key.flags = DB_DBT_USERMEM;
+
+    if (!make_dbt(dataobj, &data)) return NULL;
+    if (!checkTxnObj(txnobj, &txn)) return NULL;
+
+    if (-1 == _DB_put(self, txn, &key, &data, DB_APPEND))
+        return NULL;
+
+    return PyInt_FromLong(recno);
+}
+
+
+#if (DBVER >= 33)
+
+static int
+_db_associateCallback(DB* db, const DBT* priKey, const DBT* priData, DBT* secKey)
+{
+    int       retval = DB_DONOTINDEX;
+    DBObject* secondaryDB = (DBObject*)db->app_private;
+    PyObject* callback = secondaryDB->associateCallback;
+    int       type = secondaryDB->primaryDBType;
+    PyObject* key;
+    PyObject* data;
+    PyObject* args;
+    PyObject* result;
+
+
+    if (callback != NULL) {
+        MYDB_BEGIN_BLOCK_THREADS;
+
+        if (type == DB_RECNO || type == DB_QUEUE) {
+            key = PyInt_FromLong( *((db_recno_t*)priKey->data));
+        }
+        else {
+            key  = PyString_FromStringAndSize(priKey->data, priKey->size);
+        }
+        data = PyString_FromStringAndSize(priData->data, priData->size);
+        args = PyTuple_New(2);
+        PyTuple_SET_ITEM(args, 0, key);  /* steals reference */
+        PyTuple_SET_ITEM(args, 1, data); /* steals reference */
+
+        result = PyEval_CallObject(callback, args);
+
+        if (result == NULL) {
+            PyErr_Print();
+        }
+        else if (result == Py_None) {
+            retval = DB_DONOTINDEX;
+        }
+        else if (PyInt_Check(result)) {
+            retval = PyInt_AsLong(result);
+        }
+        else if (PyString_Check(result)) {
+            char* data;
+            int   size;
+
+            CLEAR_DBT(*secKey);
+#if PYTHON_API_VERSION <= 1007
+            /* 1.5 compatibility */
+            size = PyString_Size(result);
+            data = PyString_AsString(result);
+#else
+            PyString_AsStringAndSize(result, &data, &size);
+#endif
+            secKey->flags = DB_DBT_APPMALLOC;   /* DB will free */
+            secKey->data = malloc(size);        /* TODO, check this */
+            memcpy(secKey->data, data, size);
+            secKey->size = size;
+            retval = 0;
+        }
+        else {
+            PyErr_SetString(PyExc_TypeError,
+                            "DB associate callback should return DB_DONOTINDEX or a string.");
+            PyErr_Print();
+        }
+
+        Py_DECREF(args);
+        if (result) {
+            Py_DECREF(result);
+        }
+
+        MYDB_END_BLOCK_THREADS;
+    }
+    return retval;
+}
+
+
+static PyObject*
+DB_associate(DBObject* self, PyObject* args, PyObject* kwargs)
+{
+    int err, flags=0;
+    DBObject* secondaryDB;
+    PyObject* callback;
+    char* kwnames[] = {"secondaryDB", "callback", "flags", NULL};
+
+    if (!PyArg_ParseTupleAndKeywords(args, kwargs, "OO|i:associate", kwnames,
+                                     &secondaryDB, &callback, &flags))
+        return NULL;
+
+    CHECK_DB_NOT_CLOSED(self);
+    if (!DBObject_Check(secondaryDB)) {
+        makeTypeError("DB", (PyObject*)secondaryDB);
+        return NULL;
+    }
+    if (callback == Py_None) {
+        callback = NULL;
+    }
+    else if (!PyCallable_Check(callback)) {
+        makeTypeError("Callable", callback);
+        return NULL;
+    }
+
+    /* Save a reference to the callback in the secondary DB. */
+    if (self->associateCallback != NULL) {
+        Py_DECREF(self->associateCallback);
+    }
+    Py_INCREF(callback);
+    secondaryDB->associateCallback = callback;
+    secondaryDB->primaryDBType = _DB_get_type(self);
+
+
+    MYDB_BEGIN_ALLOW_THREADS;
+    err = self->db->associate(self->db,
+                              secondaryDB->db,
+                              _db_associateCallback,
+                              flags);
+    MYDB_END_ALLOW_THREADS;
+
+    if (err) {
+        Py_DECREF(self->associateCallback);
+        self->associateCallback = NULL;
+        secondaryDB->primaryDBType = 0;
+    }
+
+    RETURN_IF_ERR();
+    RETURN_NONE();
+}
+
+
+#endif
+
+
+static PyObject*
+DB_close(DBObject* self, PyObject* args)
+{
+    int err, flags=0;
+    if (!PyArg_ParseTuple(args,"|i:close", &flags))
+        return NULL;
+    if (self->db != NULL) {
+        if (self->myenvobj)
+            CHECK_ENV_NOT_CLOSED(self->myenvobj);
+        MYDB_BEGIN_ALLOW_THREADS;
+        err = self->db->close(self->db, flags);
+        MYDB_END_ALLOW_THREADS;
+        self->db = NULL;
+        RETURN_IF_ERR();
+    }
+    RETURN_NONE();
+}
+
+
+#if (DBVER >= 32)
+static PyObject*
+_DB_consume(DBObject* self, PyObject* args, PyObject* kwargs, int consume_flag)
+{
+    int err, flags=0, type;
+    PyObject* txnobj = NULL;
+    PyObject* retval = NULL;
+    DBT key, data;
+    DB_TXN *txn = NULL;
+    char* kwnames[] = { "txn", "flags", NULL };
+
+    if (!PyArg_ParseTupleAndKeywords(args, kwargs, "|Oi:consume", kwnames,
+                                     &txnobj, &flags))
+        return NULL;
+
+    CHECK_DB_NOT_CLOSED(self);
+    type = _DB_get_type(self);
+    if (type == -1)
+        return NULL;
+    if (type != DB_QUEUE) {
+        PyErr_SetString(PyExc_TypeError, "Consume methods only allowed for Queue DB's");
+        return NULL;
+    }
+    if (!checkTxnObj(txnobj, &txn))
+        return NULL;
+
+    CLEAR_DBT(key);
+    CLEAR_DBT(data);
+    if (CHECK_DBFLAG(self, DB_THREAD)) {
+        /* Tell BerkeleyDB to malloc the return value (thread safe) */
+        data.flags = DB_DBT_MALLOC;
+        key.flags = DB_DBT_MALLOC;
+    }
+
+    MYDB_BEGIN_ALLOW_THREADS;
+    err = self->db->get(self->db, txn, &key, &data, flags|consume_flag);
+    MYDB_END_ALLOW_THREADS;
+
+    if ((err == DB_NOTFOUND) && self->getReturnsNone) {
+        err = 0;
+        Py_INCREF(Py_None);
+        retval = Py_None;
+    }
+    else if (!err) {
+        retval = Py_BuildValue("s#s#", key.data, key.size, data.data, data.size);
+        FREE_DBT(key);
+        FREE_DBT(data);
+    }
+
+    RETURN_IF_ERR();
+    return retval;
+}
+
+static PyObject*
+DB_consume(DBObject* self, PyObject* args, PyObject* kwargs, int consume_flag)
+{
+    return _DB_consume(self, args, kwargs, DB_CONSUME);
+}
+
+static PyObject*
+DB_consume_wait(DBObject* self, PyObject* args, PyObject* kwargs, int consume_flag)
+{
+    return _DB_consume(self, args, kwargs, DB_CONSUME_WAIT);
+}
+#endif
+
+
+
+static PyObject*
+DB_cursor(DBObject* self, PyObject* args, PyObject* kwargs)
+{
+    int err, flags=0;
+    DBC* dbc;
+    PyObject* txnobj = NULL;
+    DB_TXN *txn = NULL;
+    char* kwnames[] = { "txn", "flags", NULL };
+
+    if (!PyArg_ParseTupleAndKeywords(args, kwargs, "|Oi:cursor", kwnames,
+                                     &txnobj, &flags))
+        return NULL;
+    CHECK_DB_NOT_CLOSED(self);
+    if (!checkTxnObj(txnobj, &txn))
+        return NULL;
+
+    MYDB_BEGIN_ALLOW_THREADS;
+    err = self->db->cursor(self->db, txn, &dbc, flags);
+    MYDB_END_ALLOW_THREADS;
+    RETURN_IF_ERR();
+    return (PyObject*) newDBCursorObject(dbc, self);
+}
+
+
+static PyObject*
+DB_delete(DBObject* self, PyObject* args, PyObject* kwargs)
+{
+    PyObject* txnobj = NULL;
+    int flags = 0;
+    PyObject* keyobj;
+    DBT key;
+    DB_TXN *txn = NULL;
+    char* kwnames[] = { "key", "txn", "flags", NULL };
+
+    if (!PyArg_ParseTupleAndKeywords(args, kwargs, "O|Oi:delete", kwnames,
+                                     &keyobj, &txnobj, &flags))
+        return NULL;
+    CHECK_DB_NOT_CLOSED(self);
+    if (!make_key_dbt(self, keyobj, &key, NULL))
+        return NULL;
+    if (!checkTxnObj(txnobj, &txn))
+        return NULL;
+
+    if (-1 == _DB_delete(self, txn, &key, 0))
+        return NULL;
+
+    FREE_DBT(key);
+    RETURN_NONE();
+}
+
+
+static PyObject*
+DB_fd(DBObject* self, PyObject* args)
+{
+    int err, the_fd;
+
+    if (!PyArg_ParseTuple(args,":fd"))
+        return NULL;
+    CHECK_DB_NOT_CLOSED(self);
+
+    MYDB_BEGIN_ALLOW_THREADS;
+    err = self->db->fd(self->db, &the_fd);
+    MYDB_END_ALLOW_THREADS;
+    RETURN_IF_ERR();
+    return PyInt_FromLong(the_fd);
+}
+
+
+static PyObject*
+DB_get(DBObject* self, PyObject* args, PyObject* kwargs)
+{
+    int err, flags=0;
+    PyObject* txnobj = NULL;
+    PyObject* keyobj;
+    PyObject* dfltobj = NULL;
+    PyObject* retval = NULL;
+    int dlen = -1;
+    int doff = -1;
+    DBT key, data;
+    DB_TXN *txn = NULL;
+    char* kwnames[] = { "key", "default", "txn", "flags", "dlen", "doff", NULL };
+
+    if (!PyArg_ParseTupleAndKeywords(args, kwargs, "O|OOiii:get", kwnames,
+                                     &keyobj, &dfltobj, &txnobj, &flags, &dlen, &doff))
+        return NULL;
+
+    CHECK_DB_NOT_CLOSED(self);
+    if (!make_key_dbt(self, keyobj, &key, &flags))
+        return NULL;
+    if (!checkTxnObj(txnobj, &txn))
+        return NULL;
+
+    CLEAR_DBT(data);
+    if (CHECK_DBFLAG(self, DB_THREAD)) {
+        /* Tell BerkeleyDB to malloc the return value (thread safe) */
+        data.flags = DB_DBT_MALLOC;
+    }
+    if (!add_partial_dbt(&data, dlen, doff))
+        return NULL;
+
+    MYDB_BEGIN_ALLOW_THREADS;
+    err = self->db->get(self->db, txn, &key, &data, flags);
+    MYDB_END_ALLOW_THREADS;
+
+    if ((err == DB_NOTFOUND) && (dfltobj != NULL)) {
+        err = 0;
+        Py_INCREF(dfltobj);
+        retval = dfltobj;
+    }
+    else if ((err == DB_NOTFOUND) && self->getReturnsNone) {
+        err = 0;
+        Py_INCREF(Py_None);
+        retval = Py_None;
+    }
+    else if (!err) {
+        if (flags & DB_SET_RECNO) /* return both key and data */
+            retval = Py_BuildValue("s#s#", key.data, key.size, data.data, data.size);
+        else /* return just the data */
+            retval = PyString_FromStringAndSize((char*)data.data, data.size);
+        FREE_DBT(key);
+        FREE_DBT(data);
+    }
+
+    RETURN_IF_ERR();
+    return retval;
+}
+
+
+/* Return size of entry */
+static PyObject*
+DB_get_size(DBObject* self, PyObject* args, PyObject* kwargs)
+{
+    int err, flags=0;
+    PyObject* txnobj = NULL;
+    PyObject* keyobj;
+    PyObject* retval = NULL;
+    DBT key, data;
+    DB_TXN *txn = NULL;
+    char* kwnames[] = { "key", "txn", NULL };
+
+    if (!PyArg_ParseTupleAndKeywords(args, kwargs, "O|O:get_size", kwnames,
+                                     &keyobj, &txnobj))
+        return NULL;
+    CHECK_DB_NOT_CLOSED(self);
+    if (!make_key_dbt(self, keyobj, &key, &flags))
+        return NULL;
+    if (!checkTxnObj(txnobj, &txn))
+        return NULL;
+    CLEAR_DBT(data);
+
+    /* We don't allocate any memory, forcing a ENOMEM error and thus
+       getting the record size. */
+    data.flags = DB_DBT_USERMEM;
+    data.ulen = 0;
+    MYDB_BEGIN_ALLOW_THREADS;
+    err = self->db->get(self->db, txn, &key, &data, flags);
+    MYDB_END_ALLOW_THREADS;
+    if (err == ENOMEM) {
+        retval = PyInt_FromLong((long)data.size);
+        err = 0;
+    }
+
+    FREE_DBT(key);
+    FREE_DBT(data);
+    RETURN_IF_ERR();
+    return retval;
+}
+
+
+static PyObject*
+DB_get_both(DBObject* self, PyObject* args, PyObject* kwargs)
+{
+    int err, flags=0;
+    PyObject* txnobj = NULL;
+    PyObject* keyobj;
+    PyObject* dataobj;
+    PyObject* retval = NULL;
+    DBT key, data;
+    DB_TXN *txn = NULL;
+    char* kwnames[] = { "key", "data", "txn", "flags", NULL };
+
+
+    if (!PyArg_ParseTupleAndKeywords(args, kwargs, "OO|Oi:get_both", kwnames,
+                                     &keyobj, &dataobj, &txnobj, &flags))
+        return NULL;
+
+    CHECK_DB_NOT_CLOSED(self);
+    if (!make_key_dbt(self, keyobj, &key, NULL))
+        return NULL;
+    if (!make_dbt(dataobj, &data))
+        return NULL;
+    if (!checkTxnObj(txnobj, &txn))
+        return NULL;
+
+    flags |= DB_GET_BOTH;
+
+    if (CHECK_DBFLAG(self, DB_THREAD)) {
+        /* Tell BerkeleyDB to malloc the return value (thread safe) */
+        data.flags = DB_DBT_MALLOC;
+        /* TODO: Is this flag needed?  We're passing a data object that should
+                 match what's in the DB, so there should be no need to malloc.
+                 We run the risk of freeing something twice!  Check this. */
+    }
+
+    MYDB_BEGIN_ALLOW_THREADS;
+    err = self->db->get(self->db, txn, &key, &data, flags);
+    MYDB_END_ALLOW_THREADS;
+
+    if ((err == DB_NOTFOUND) && self->getReturnsNone) {
+        err = 0;
+        Py_INCREF(Py_None);
+        retval = Py_None;
+    }
+    else if (!err) {
+        retval = PyString_FromStringAndSize((char*)data.data, data.size);
+        FREE_DBT(data); /* Only if retrieval was successful */
+    }
+
+    FREE_DBT(key);
+    RETURN_IF_ERR();
+    return retval;
+}
+
+
+static PyObject*
+DB_get_byteswapped(DBObject* self, PyObject* args)
+{
+#if (DBVER >= 33)
+    int err = 0;
+#endif
+    int retval = -1;
+
+    if (!PyArg_ParseTuple(args,":get_byteswapped"))
+        return NULL;
+    CHECK_DB_NOT_CLOSED(self);
+
+#if (DBVER >= 33)
+    MYDB_BEGIN_ALLOW_THREADS;
+    err = self->db->get_byteswapped(self->db, &retval);
+    MYDB_END_ALLOW_THREADS;
+    RETURN_IF_ERR();
+#else
+    MYDB_BEGIN_ALLOW_THREADS;
+    retval = self->db->get_byteswapped(self->db);
+    MYDB_END_ALLOW_THREADS;
+#endif
+    return PyInt_FromLong(retval);
+}
+
+
+static PyObject*
+DB_get_type(DBObject* self, PyObject* args)
+{
+    int type;
+
+    if (!PyArg_ParseTuple(args,":get_type"))
+        return NULL;
+    CHECK_DB_NOT_CLOSED(self);
+
+    MYDB_BEGIN_ALLOW_THREADS;
+    type = _DB_get_type(self);
+    MYDB_END_ALLOW_THREADS;
+    if (type == -1)
+        return NULL;
+    return PyInt_FromLong(type);
+}
+
+
+static PyObject*
+DB_join(DBObject* self, PyObject* args)
+{
+    int err, flags=0;
+    int length, x;
+    PyObject* cursorsObj;
+    DBC** cursors;
+    DBC*  dbc;
+
+
+    if (!PyArg_ParseTuple(args,"O|i:join", &cursorsObj, &flags))
+        return NULL;
+
+    CHECK_DB_NOT_CLOSED(self);
+
+    if (!PySequence_Check(cursorsObj)) {
+        PyErr_SetString(PyExc_TypeError, "Sequence of DBCursor objects expected");
+        return NULL;
+    }
+
+    length = PyObject_Length(cursorsObj);
+    cursors = malloc((length+1) * sizeof(DBC*));
+    cursors[length] = NULL;
+    for (x=0; x<length; x++) {
+        PyObject* item = PySequence_GetItem(cursorsObj, x);
+        if (!DBCursorObject_Check(item)) {
+            PyErr_SetString(PyExc_TypeError, "Sequence of DBCursor objects expected");
+            free(cursors);
+            return NULL;
+        }
+        cursors[x] = ((DBCursorObject*)item)->dbc;
+    }
+
+    MYDB_BEGIN_ALLOW_THREADS;
+    err = self->db->join(self->db, cursors, &dbc, flags);
+    MYDB_END_ALLOW_THREADS;
+    free(cursors);
+    RETURN_IF_ERR();
+
+    return (PyObject*) newDBCursorObject(dbc, self);
+}
+
+
+static PyObject*
+DB_key_range(DBObject* self, PyObject* args, PyObject* kwargs)
+{
+    int err, flags=0;
+    PyObject* txnobj = NULL;
+    PyObject* keyobj;
+    DBT key;
+    DB_TXN *txn = NULL;
+    DB_KEY_RANGE range;
+    char* kwnames[] = { "key", "txn", "flags", NULL };
+
+    if (!PyArg_ParseTupleAndKeywords(args, kwargs, "O|Oi:key_range", kwnames,
+                                     &keyobj, &txnobj, &flags))
+        return NULL;
+    CHECK_DB_NOT_CLOSED(self);
+    if (!make_dbt(keyobj, &key))   /* BTree only, don't need to allow for an int key */
+        return NULL;
+    if (!checkTxnObj(txnobj, &txn))
+        return NULL;
+
+    MYDB_BEGIN_ALLOW_THREADS;
+    err = self->db->key_range(self->db, txn, &key, &range, flags);
+    MYDB_END_ALLOW_THREADS;
+
+    RETURN_IF_ERR();
+    return Py_BuildValue("ddd", range.less, range.equal, range.greater);
+}
+
+
+static PyObject*
+DB_open(DBObject* self, PyObject* args, PyObject* kwargs)
+{
+    int err, type = DB_UNKNOWN, flags=0, mode=0660;
+    char* filename = NULL;
+    char* dbname = NULL;
+    char* kwnames[] = { "filename", "dbname", "dbtype", "flags", "mode", NULL };
+    char* kwnames2[] = { "filename", "dbtype", "flags", "mode", NULL };
+
+    if (!PyArg_ParseTupleAndKeywords(args, kwargs, "z|ziii:open", kwnames,
+                                     &filename, &dbname, &type, &flags, &mode)) {
+        PyErr_Clear();
+        type = DB_UNKNOWN; flags = 0; mode = 0660;
+        filename = NULL; dbname = NULL;
+        if (!PyArg_ParseTupleAndKeywords(args, kwargs,"z|iii:open", kwnames2,
+                                         &filename, &type, &flags, &mode))
+            return NULL;
+    }
+
+    if (NULL == self->db) {
+        PyErr_SetObject(DBError, Py_BuildValue("(is)", 0,
+                                 "Cannot call open() twice for DB object"));
+        return NULL;
+    }
+
+    MYDB_BEGIN_ALLOW_THREADS;
+    err = self->db->open(self->db, filename, dbname, type, flags, mode);
+    MYDB_END_ALLOW_THREADS;
+    if (makeDBError(err)) {
+        self->db = NULL;
+        return NULL;
+    }
+
+    self->flags = flags;
+    RETURN_NONE();
+}
+
+
+static PyObject*
+DB_put(DBObject* self, PyObject* args, PyObject* kwargs)
+{
+    int flags=0;
+    PyObject* txnobj = NULL;
+    int dlen = -1;
+    int doff = -1;
+    PyObject* keyobj, *dataobj, *retval;
+    DBT key, data;
+    DB_TXN *txn = NULL;
+    char* kwnames[] = { "key", "data", "txn", "flags", "dlen", "doff", NULL };
+
+    if (!PyArg_ParseTupleAndKeywords(args, kwargs, "OO|Oiii:put", kwnames,
+                         &keyobj, &dataobj, &txnobj, &flags, &dlen, &doff))
+        return NULL;
+
+    CHECK_DB_NOT_CLOSED(self);
+    if (!make_key_dbt(self, keyobj, &key, NULL)) return NULL;
+    if (!make_dbt(dataobj, &data)) return NULL;
+    if (!add_partial_dbt(&data, dlen, doff)) return NULL;
+    if (!checkTxnObj(txnobj, &txn)) return NULL;
+
+    if (-1 == _DB_put(self, txn, &key, &data, flags)) {
+        FREE_DBT(key);
+        return NULL;
+    }
+
+    if (flags & DB_APPEND)
+        retval = PyInt_FromLong(*((db_recno_t*)key.data));
+    else {
+        retval = Py_None;
+        Py_INCREF(retval);
+    }
+    FREE_DBT(key);
+    return retval;
+}
+
+
+
+static PyObject*
+DB_remove(DBObject* self, PyObject* args, PyObject* kwargs)
+{
+    char* filename;
+    char* database = NULL;
+    int err, flags=0;
+    char* kwnames[] = { "filename", "dbname", "flags", NULL};
+
+    if (!PyArg_ParseTupleAndKeywords(args, kwargs, "s|zi:remove", kwnames,
+                                     &filename, &database, &flags))
+        return NULL;
+    CHECK_DB_NOT_CLOSED(self);
+
+    MYDB_BEGIN_ALLOW_THREADS;
+    err = self->db->remove(self->db, filename, database, flags);
+    MYDB_END_ALLOW_THREADS;
+    RETURN_IF_ERR();
+    RETURN_NONE();
+}
+
+
+
+static PyObject*
+DB_rename(DBObject* self, PyObject* args)
+{
+    char* filename;
+    char* database;
+    char* newname;
+    int err, flags=0;
+
+    if (!PyArg_ParseTuple(args, "sss|i:rename", &filename, &database, &newname, &flags))
+        return NULL;
+    CHECK_DB_NOT_CLOSED(self);
+
+    MYDB_BEGIN_ALLOW_THREADS;
+    err = self->db->rename(self->db, filename, database, newname, flags);
+    MYDB_END_ALLOW_THREADS;
+    RETURN_IF_ERR();
+    RETURN_NONE();
+}
+
+
+static PyObject*
+DB_set_bt_minkey(DBObject* self, PyObject* args)
+{
+    int err, minkey;
+
+    if (!PyArg_ParseTuple(args,"i:set_bt_minkey", &minkey ))
+        return NULL;
+    CHECK_DB_NOT_CLOSED(self);
+
+    MYDB_BEGIN_ALLOW_THREADS;
+    err = self->db->set_bt_minkey(self->db, minkey);
+    MYDB_END_ALLOW_THREADS;
+    RETURN_IF_ERR();
+    RETURN_NONE();
+}
+
+
+static PyObject*
+DB_set_cachesize(DBObject* self, PyObject* args)
+{
+    int err;
+    int gbytes = 0, bytes = 0, ncache = 0;
+
+    if (!PyArg_ParseTuple(args,"ii|i:set_cachesize",
+                          &gbytes,&bytes,&ncache))
+        return NULL;
+    CHECK_DB_NOT_CLOSED(self);
+
+    MYDB_BEGIN_ALLOW_THREADS;
+    err = self->db->set_cachesize(self->db, gbytes, bytes, ncache);
+    MYDB_END_ALLOW_THREADS;
+    RETURN_IF_ERR();
+    RETURN_NONE();
+}
+
+
+static PyObject*
+DB_set_flags(DBObject* self, PyObject* args)
+{
+    int err, flags;
+
+    if (!PyArg_ParseTuple(args,"i:set_flags", &flags))
+        return NULL;
+    CHECK_DB_NOT_CLOSED(self);
+
+    MYDB_BEGIN_ALLOW_THREADS;
+    err = self->db->set_flags(self->db, flags);
+    MYDB_END_ALLOW_THREADS;
+    RETURN_IF_ERR();
+
+    self->setflags |= flags;
+    RETURN_NONE();
+}
+
+
+static PyObject*
+DB_set_h_ffactor(DBObject* self, PyObject* args)
+{
+    int err, ffactor;
+
+    if (!PyArg_ParseTuple(args,"i:set_h_ffactor", &ffactor))
+        return NULL;
+    CHECK_DB_NOT_CLOSED(self);
+
+    MYDB_BEGIN_ALLOW_THREADS;
+    err = self->db->set_h_ffactor(self->db, ffactor);
+    MYDB_END_ALLOW_THREADS;
+    RETURN_IF_ERR();
+    RETURN_NONE();
+}
+
+
+static PyObject*
+DB_set_h_nelem(DBObject* self, PyObject* args)
+{
+    int err, nelem;
+
+    if (!PyArg_ParseTuple(args,"i:set_h_nelem", &nelem))
+        return NULL;
+    CHECK_DB_NOT_CLOSED(self);
+
+    MYDB_BEGIN_ALLOW_THREADS;
+    err = self->db->set_h_nelem(self->db, nelem);
+    MYDB_END_ALLOW_THREADS;
+    RETURN_IF_ERR();
+    RETURN_NONE();
+}
+
+
+static PyObject*
+DB_set_lorder(DBObject* self, PyObject* args)
+{
+    int err, lorder;
+
+    if (!PyArg_ParseTuple(args,"i:set_lorder", &lorder))
+        return NULL;
+    CHECK_DB_NOT_CLOSED(self);
+
+    MYDB_BEGIN_ALLOW_THREADS;
+    err = self->db->set_lorder(self->db, lorder);
+    MYDB_END_ALLOW_THREADS;
+    RETURN_IF_ERR();
+    RETURN_NONE();
+}
+
+
+static PyObject*
+DB_set_pagesize(DBObject* self, PyObject* args)
+{
+    int err, pagesize;
+
+    if (!PyArg_ParseTuple(args,"i:set_pagesize", &pagesize))
+        return NULL;
+    CHECK_DB_NOT_CLOSED(self);
+
+    MYDB_BEGIN_ALLOW_THREADS;
+    err = self->db->set_pagesize(self->db, pagesize);
+    MYDB_END_ALLOW_THREADS;
+    RETURN_IF_ERR();
+    RETURN_NONE();
+}
+
+
+static PyObject*
+DB_set_re_delim(DBObject* self, PyObject* args)
+{
+    int err;
+    char delim;
+
+    if (!PyArg_ParseTuple(args,"b:set_re_delim", &delim)) {
+        PyErr_Clear();
+        if (!PyArg_ParseTuple(args,"c:set_re_delim", &delim))
+            return NULL;
+    }
+
+    CHECK_DB_NOT_CLOSED(self);
+
+    MYDB_BEGIN_ALLOW_THREADS;
+    err = self->db->set_re_delim(self->db, delim);
+    MYDB_END_ALLOW_THREADS;
+    RETURN_IF_ERR();
+    RETURN_NONE();
+}
+
+static PyObject*
+DB_set_re_len(DBObject* self, PyObject* args)
+{
+    int err, len;
+
+    if (!PyArg_ParseTuple(args,"i:set_re_len", &len))
+        return NULL;
+    CHECK_DB_NOT_CLOSED(self);
+
+    MYDB_BEGIN_ALLOW_THREADS;
+    err = self->db->set_re_len(self->db, len);
+    MYDB_END_ALLOW_THREADS;
+    RETURN_IF_ERR();
+    RETURN_NONE();
+}
+
+
+static PyObject*
+DB_set_re_pad(DBObject* self, PyObject* args)
+{
+    int err;
+    char pad;
+
+    if (!PyArg_ParseTuple(args,"b:set_re_pad", &pad)) {
+        PyErr_Clear();
+        if (!PyArg_ParseTuple(args,"c:set_re_pad", &pad))
+            return NULL;
+    }
+    CHECK_DB_NOT_CLOSED(self);
+
+    MYDB_BEGIN_ALLOW_THREADS;
+    err = self->db->set_re_pad(self->db, pad);
+    MYDB_END_ALLOW_THREADS;
+    RETURN_IF_ERR();
+    RETURN_NONE();
+}
+
+
+static PyObject*
+DB_set_re_source(DBObject* self, PyObject* args)
+{
+    int err;
+    char *re_source;
+
+    if (!PyArg_ParseTuple(args,"s:set_re_source", &re_source))
+        return NULL;
+    CHECK_DB_NOT_CLOSED(self);
+
+    MYDB_BEGIN_ALLOW_THREADS;
+    err = self->db->set_re_source(self->db, re_source);
+    MYDB_END_ALLOW_THREADS;
+    RETURN_IF_ERR();
+    RETURN_NONE();
+}
+
+
+#if (DBVER >= 32)
+static PyObject*
+DB_set_q_extentsize(DBObject* self, PyObject* args)
+{
+    int err;
+    int extentsize;
+
+    if (!PyArg_ParseTuple(args,"i:set_q_extentsize", &extentsize))
+        return NULL;
+    CHECK_DB_NOT_CLOSED(self);
+
+    MYDB_BEGIN_ALLOW_THREADS;
+    err = self->db->set_q_extentsize(self->db, extentsize);
+    MYDB_END_ALLOW_THREADS;
+    RETURN_IF_ERR();
+    RETURN_NONE();
+}
+#endif
+
+static PyObject*
+DB_stat(DBObject* self, PyObject* args)
+{
+    int err, flags = 0, type;
+    void* sp;
+    PyObject* d;
+
+
+    if (!PyArg_ParseTuple(args, "|i:stat", &flags))
+        return NULL;
+    CHECK_DB_NOT_CLOSED(self);
+
+    MYDB_BEGIN_ALLOW_THREADS;
+#if (DBVER >= 33)
+    err = self->db->stat(self->db, &sp, flags);
+#else
+    err = self->db->stat(self->db, &sp, NULL, flags);
+#endif
+    MYDB_END_ALLOW_THREADS;
+    RETURN_IF_ERR();
+
+    self->haveStat = 1;
+
+    /* Turn the stat structure into a dictionary */
+    type = _DB_get_type(self);
+    if ((type == -1) || ((d = PyDict_New()) == NULL)) {
+        free(sp);
+        return NULL;
+    }
+
+#define MAKE_HASH_ENTRY(name)  _addIntToDict(d, #name, ((DB_HASH_STAT*)sp)->hash_##name)
+#define MAKE_BT_ENTRY(name)    _addIntToDict(d, #name, ((DB_BTREE_STAT*)sp)->bt_##name)
+#define MAKE_QUEUE_ENTRY(name) _addIntToDict(d, #name, ((DB_QUEUE_STAT*)sp)->qs_##name)
+
+    switch (type) {
+    case DB_HASH:
+        MAKE_HASH_ENTRY(magic);
+        MAKE_HASH_ENTRY(version);
+        MAKE_HASH_ENTRY(nkeys);
+        MAKE_HASH_ENTRY(ndata);
+        MAKE_HASH_ENTRY(pagesize);
+        MAKE_HASH_ENTRY(nelem);
+        MAKE_HASH_ENTRY(ffactor);
+        MAKE_HASH_ENTRY(buckets);
+        MAKE_HASH_ENTRY(free);
+        MAKE_HASH_ENTRY(bfree);
+        MAKE_HASH_ENTRY(bigpages);
+        MAKE_HASH_ENTRY(big_bfree);
+        MAKE_HASH_ENTRY(overflows);
+        MAKE_HASH_ENTRY(ovfl_free);
+        MAKE_HASH_ENTRY(dup);
+        MAKE_HASH_ENTRY(dup_free);
+        break;
+
+    case DB_BTREE:
+    case DB_RECNO:
+        MAKE_BT_ENTRY(magic);
+        MAKE_BT_ENTRY(version);
+        MAKE_BT_ENTRY(nkeys);
+        MAKE_BT_ENTRY(ndata);
+        MAKE_BT_ENTRY(pagesize);
+        MAKE_BT_ENTRY(minkey);
+        MAKE_BT_ENTRY(re_len);
+        MAKE_BT_ENTRY(re_pad);
+        MAKE_BT_ENTRY(levels);
+        MAKE_BT_ENTRY(int_pg);
+        MAKE_BT_ENTRY(leaf_pg);
+        MAKE_BT_ENTRY(dup_pg);
+        MAKE_BT_ENTRY(over_pg);
+        MAKE_BT_ENTRY(free);
+        MAKE_BT_ENTRY(int_pgfree);
+        MAKE_BT_ENTRY(leaf_pgfree);
+        MAKE_BT_ENTRY(dup_pgfree);
+        MAKE_BT_ENTRY(over_pgfree);
+        break;
+
+    case DB_QUEUE:
+        MAKE_QUEUE_ENTRY(magic);
+        MAKE_QUEUE_ENTRY(version);
+        MAKE_QUEUE_ENTRY(nkeys);
+        MAKE_QUEUE_ENTRY(ndata);
+        MAKE_QUEUE_ENTRY(pagesize);
+        MAKE_QUEUE_ENTRY(pages);
+        MAKE_QUEUE_ENTRY(re_len);
+        MAKE_QUEUE_ENTRY(re_pad);
+        MAKE_QUEUE_ENTRY(pgfree);
+#if (DBVER == 31)
+        MAKE_QUEUE_ENTRY(start);
+#endif
+        MAKE_QUEUE_ENTRY(first_recno);
+        MAKE_QUEUE_ENTRY(cur_recno);
+        break;
+
+    default:
+        PyErr_SetString(PyExc_TypeError, "Unknown DB type, unable to stat");
+        Py_DECREF(d);
+        d = NULL;
+    }
+
+#undef MAKE_HASH_ENTRY
+#undef MAKE_BT_ENTRY
+#undef MAKE_QUEUE_ENTRY
+
+    free(sp);
+    return d;
+}
+
+static PyObject*
+DB_sync(DBObject* self, PyObject* args)
+{
+    int err;
+    int flags = 0;
+
+    if (!PyArg_ParseTuple(args,"|i:sync", &flags ))
+        return NULL;
+    CHECK_DB_NOT_CLOSED(self);
+
+    MYDB_BEGIN_ALLOW_THREADS;
+    err = self->db->sync(self->db, flags);
+    MYDB_END_ALLOW_THREADS;
+    RETURN_IF_ERR();
+    RETURN_NONE();
+}
+
+
+#if (DBVER >= 33)
+static PyObject*
+DB_truncate(DBObject* self, PyObject* args, PyObject* kwargs)
+{
+    int err, flags=0;
+    u_int32_t count=0;
+    PyObject* txnobj = NULL;
+    DB_TXN *txn = NULL;
+    char* kwnames[] = { "txn", "flags", NULL };
+
+    if (!PyArg_ParseTupleAndKeywords(args, kwargs, "|Oi:cursor", kwnames,
+                                     &txnobj, &flags))
+        return NULL;
+    CHECK_DB_NOT_CLOSED(self);
+    if (!checkTxnObj(txnobj, &txn))
+        return NULL;
+
+    MYDB_BEGIN_ALLOW_THREADS;
+    err = self->db->truncate(self->db, txn, &count, flags);
+    MYDB_END_ALLOW_THREADS;
+    RETURN_IF_ERR();
+    return PyInt_FromLong(count);
+}
+#endif
+
+
+static PyObject*
+DB_upgrade(DBObject* self, PyObject* args)
+{
+    int err, flags=0;
+    char *filename;
+
+    if (!PyArg_ParseTuple(args,"s|i:upgrade", &filename, &flags))
+        return NULL;
+    CHECK_DB_NOT_CLOSED(self);
+
+    MYDB_BEGIN_ALLOW_THREADS;
+    err = self->db->upgrade(self->db, filename, flags);
+    MYDB_END_ALLOW_THREADS;
+    RETURN_IF_ERR();
+    RETURN_NONE();
+}
+
+
+static PyObject*
+DB_verify(DBObject* self, PyObject* args, PyObject* kwargs)
+{
+    int err, flags=0;
+    char* fileName;
+    char* dbName=NULL;
+    char* outFileName=NULL;
+    FILE* outFile=NULL;
+    char* kwnames[] = { "filename", "dbname", "outfile", "flags", NULL };
+
+    if (!PyArg_ParseTupleAndKeywords(args, kwargs, "s|zzi:verify", kwnames,
+                                     &fileName, &dbName, &outFileName, &flags))
+        return NULL;
+
+    CHECK_DB_NOT_CLOSED(self);
+    if (outFileName)
+        outFile = fopen(outFileName, "w");
+
+    MYDB_BEGIN_ALLOW_THREADS;
+    err = self->db->verify(self->db, fileName, dbName, outFile, flags);
+    MYDB_END_ALLOW_THREADS;
+    if (outFileName)
+        fclose(outFile);
+    RETURN_IF_ERR();
+    RETURN_NONE();
+}
+
+
+static PyObject*
+DB_set_get_returns_none(DBObject* self, PyObject* args)
+{
+    int flags=0;
+    int oldValue;
+
+    if (!PyArg_ParseTuple(args,"i:set_get_returns_none", &flags))
+        return NULL;
+    CHECK_DB_NOT_CLOSED(self);
+
+    oldValue = self->getReturnsNone;
+    self->getReturnsNone = flags;
+    return PyInt_FromLong(oldValue);
+}
+
+
+/*-------------------------------------------------------------- */
+/* Mapping and Dictionary-like access routines */
+
+int DB_length(DBObject* self)
+{
+    int err;
+    long size = 0;
+    int flags = 0;
+    void* sp;
+
+    if (self->db == NULL) {
+        PyErr_SetObject(DBError, Py_BuildValue("(is)", 0, "DB object has been closed"));
+        return -1;
+    }
+
+    if (self->haveStat) {  /* Has the stat function been called recently?  If
+                              so, we can use the cached value. */
+        flags = DB_CACHED_COUNTS;
+    }
+
+    MYDB_BEGIN_ALLOW_THREADS;
+#if (DBVER >= 33)
+    err = self->db->stat(self->db, &sp, flags);
+#else
+    err = self->db->stat(self->db, &sp, NULL, flags);
+#endif
+    MYDB_END_ALLOW_THREADS;
+
+    if (err)
+        return -1;
+
+    self->haveStat = 1;
+
+    /* All the stat structures have matching fields upto the ndata field,
+       so we can use any of them for the type cast */
+    size = ((DB_BTREE_STAT*)sp)->bt_ndata;
+    free(sp);
+    return size;
+}
+
+
+PyObject* DB_subscript(DBObject* self, PyObject* keyobj)
+{
+    int err;
+    PyObject* retval;
+    DBT key;
+    DBT data;
+
+    CHECK_DB_NOT_CLOSED(self);
+    if (!make_key_dbt(self, keyobj, &key, NULL))
+        return NULL;
+
+    CLEAR_DBT(data);
+    if (CHECK_DBFLAG(self, DB_THREAD)) {
+        /* Tell BerkeleyDB to malloc the return value (thread safe) */
+        data.flags = DB_DBT_MALLOC;
+    }
+    MYDB_BEGIN_ALLOW_THREADS;
+    err = self->db->get(self->db, NULL, &key, &data, 0);
+    MYDB_END_ALLOW_THREADS;
+    if (err == DB_NOTFOUND || err == DB_KEYEMPTY) {
+        PyErr_SetObject(PyExc_KeyError, keyobj);
+        retval = NULL;
+    }
+    else if (makeDBError(err)) {
+        retval = NULL;
+    }
+    else {
+        retval = PyString_FromStringAndSize((char*)data.data, data.size);
+        FREE_DBT(data);
+    }
+
+    FREE_DBT(key);
+    return retval;
+}
+
+
+static int
+DB_ass_sub(DBObject* self, PyObject* keyobj, PyObject* dataobj)
+{
+    DBT key, data;
+    int retval;
+    int flags = 0;
+
+    if (self->db == NULL) {
+        PyErr_SetObject(DBError, Py_BuildValue("(is)", 0, "DB object has been closed"));
+        return -1;
+    }
+
+    if (!make_key_dbt(self, keyobj, &key, NULL))
+        return -1;
+
+    if (dataobj != NULL) {
+        if (!make_dbt(dataobj, &data))
+            retval =  -1;
+        else {
+            if (self->setflags & (DB_DUP|DB_DUPSORT))
+                flags = DB_NOOVERWRITE;         /* dictionaries shouldn't have duplicate keys */
+            retval = _DB_put(self, NULL, &key, &data, flags);
+
+            if ((retval == -1) &&  (self->setflags & (DB_DUP|DB_DUPSORT))) {
+                /* try deleting any old record that matches and then PUT it again... */
+                _DB_delete(self, NULL, &key, 0);
+                PyErr_Clear();
+                retval = _DB_put(self, NULL, &key, &data, flags);
+            }
+        }
+    }
+    else {
+        /* dataobj == NULL, so delete the key */
+        retval = _DB_delete(self, NULL, &key, 0);
+    }
+    FREE_DBT(key);
+    return retval;
+}
+
+
+static PyObject*
+DB_has_key(DBObject* self, PyObject* args)
+{
+    int err;
+    PyObject* keyobj;
+    DBT key, data;
+    PyObject* txnobj = NULL;
+    DB_TXN *txn = NULL;
+
+    if (!PyArg_ParseTuple(args,"O|O:has_key", &keyobj, &txnobj ))
+        return NULL;
+    CHECK_DB_NOT_CLOSED(self);
+    if (!make_key_dbt(self, keyobj, &key, NULL))
+        return NULL;
+    if (!checkTxnObj(txnobj, &txn))
+        return NULL;
+
+    /* This causes ENOMEM to be returned when the db has the key because
+       it has a record but can't allocate a buffer for the data.  This saves
+       having to deal with data we won't be using.
+     */
+    CLEAR_DBT(data);
+    data.flags = DB_DBT_USERMEM;
+
+    MYDB_BEGIN_ALLOW_THREADS;
+    err = self->db->get(self->db, NULL, &key, &data, 0);
+    MYDB_END_ALLOW_THREADS;
+    FREE_DBT(key);
+    return PyInt_FromLong((err == ENOMEM) || (err == 0));
+}
+
+
+#define _KEYS_LIST      1
+#define _VALUES_LIST    2
+#define _ITEMS_LIST     3
+
+static PyObject*
+_DB_make_list(DBObject* self, DB_TXN* txn, int type)
+{
+    int err, dbtype;
+    DBT key;
+    DBT data;
+    DBC *cursor;
+    PyObject* list;
+    PyObject* item = NULL;
+
+    CHECK_DB_NOT_CLOSED(self);
+    CLEAR_DBT(key);
+    CLEAR_DBT(data);
+
+    dbtype = _DB_get_type(self);
+    if (dbtype == -1)
+        return NULL;
+
+    list = PyList_New(0);
+    if (list == NULL) {
+        PyErr_SetString(PyExc_MemoryError, "PyList_New failed");
+        return NULL;
+    }
+
+    /* get a cursor */
+    MYDB_BEGIN_ALLOW_THREADS;
+    err = self->db->cursor(self->db, NULL, &cursor, 0);
+    MYDB_END_ALLOW_THREADS;
+    RETURN_IF_ERR();
+
+    if (CHECK_DBFLAG(self, DB_THREAD)) {
+        key.flags = DB_DBT_REALLOC;
+        data.flags = DB_DBT_REALLOC;
+    }
+
+    while (1) { /* use the cursor to traverse the DB, collecting items */
+        MYDB_BEGIN_ALLOW_THREADS;
+        err = cursor->c_get(cursor, &key, &data, DB_NEXT);
+        MYDB_END_ALLOW_THREADS;
+
+        if (err) {
+            /* for any error, break out of the loop */
+            break;
+        }
+
+        switch (type) {
+        case _KEYS_LIST:
+            switch(dbtype) {
+            case DB_BTREE:
+            case DB_HASH:
+            default:
+                item = PyString_FromStringAndSize((char*)key.data, key.size);
+                break;
+            case DB_RECNO:
+            case DB_QUEUE:
+                item = PyInt_FromLong(*((db_recno_t*)key.data));
+                break;
+            }
+            break;
+
+        case _VALUES_LIST:
+            item = PyString_FromStringAndSize((char*)data.data, data.size);
+            break;
+
+        case _ITEMS_LIST:
+            switch(dbtype) {
+            case DB_BTREE:
+            case DB_HASH:
+            default:
+                item = Py_BuildValue("s#s#", key.data, key.size, data.data, data.size);
+                break;
+            case DB_RECNO:
+            case DB_QUEUE:
+                item = Py_BuildValue("is#", *((db_recno_t*)key.data), data.data, data.size);
+                break;
+            }
+            break;
+        }
+        if (item == NULL) {
+            Py_DECREF(list);
+            PyErr_SetString(PyExc_MemoryError, "List item creation failed");
+            list = NULL;
+            goto done;
+        }
+        PyList_Append(list, item);
+        Py_DECREF(item);
+    }
+
+    /* DB_NOTFOUND is okay, it just means we got to the end */
+    if (err != DB_NOTFOUND && makeDBError(err)) {
+        Py_DECREF(list);
+        list = NULL;
+    }
+
+ done:
+    FREE_DBT(key);
+    FREE_DBT(data);
+    MYDB_BEGIN_ALLOW_THREADS;
+    cursor->c_close(cursor);
+    MYDB_END_ALLOW_THREADS;
+    return list;
+}
+
+
+static PyObject*
+DB_keys(DBObject* self, PyObject* args)
+{
+    PyObject* txnobj = NULL;
+    DB_TXN *txn = NULL;
+
+    if (!PyArg_ParseTuple(args,"|O:keys", &txnobj))
+        return NULL;
+    if (!checkTxnObj(txnobj, &txn))
+        return NULL;
+    return _DB_make_list(self, txn, _KEYS_LIST);
+}
+
+
+static PyObject*
+DB_items(DBObject* self, PyObject* args)
+{
+    PyObject* txnobj = NULL;
+    DB_TXN *txn = NULL;
+
+    if (!PyArg_ParseTuple(args,"|O:items", &txnobj))
+        return NULL;
+    if (!checkTxnObj(txnobj, &txn))
+        return NULL;
+    return _DB_make_list(self, txn, _ITEMS_LIST);
+}
+
+
+static PyObject*
+DB_values(DBObject* self, PyObject* args)
+{
+    PyObject* txnobj = NULL;
+    DB_TXN *txn = NULL;
+
+    if (!PyArg_ParseTuple(args,"|O:values", &txnobj))
+        return NULL;
+    if (!checkTxnObj(txnobj, &txn))
+        return NULL;
+    return _DB_make_list(self, txn, _VALUES_LIST);
+}
+
+
+/* --------------------------------------------------------------------- */
+/* DBCursor methods */
+
+
+static PyObject*
+DBC_close(DBCursorObject* self, PyObject* args)
+{
+    int err = 0;
+
+    if (!PyArg_ParseTuple(args, ":close"))
+        return NULL;
+
+    CHECK_CURSOR_NOT_CLOSED(self);
+
+    if (self->dbc != NULL) {
+        MYDB_BEGIN_ALLOW_THREADS;
+        err = self->dbc->c_close(self->dbc);
+        self->dbc = NULL;
+        MYDB_END_ALLOW_THREADS;
+    }
+    RETURN_IF_ERR();
+    RETURN_NONE();
+}
+
+
+static PyObject*
+DBC_count(DBCursorObject* self, PyObject* args)
+{
+    int err = 0;
+    db_recno_t count;
+    int flags = 0;
+
+    if (!PyArg_ParseTuple(args, "|i:count", &flags))
+        return NULL;
+
+    CHECK_CURSOR_NOT_CLOSED(self);
+
+    MYDB_BEGIN_ALLOW_THREADS;
+    err = self->dbc->c_count(self->dbc, &count, flags);
+    MYDB_END_ALLOW_THREADS;
+    RETURN_IF_ERR();
+
+    return PyInt_FromLong(count);
+}
+
+
+static PyObject*
+DBC_current(DBCursorObject* self, PyObject* args, PyObject *kwargs)
+{
+    return _DBCursor_get(self,DB_CURRENT,args,kwargs,"|iii:current");
+}
+
+
+static PyObject*
+DBC_delete(DBCursorObject* self, PyObject* args)
+{
+    int err, flags=0;
+
+    if (!PyArg_ParseTuple(args, "|i:delete", &flags))
+        return NULL;
+
+    CHECK_CURSOR_NOT_CLOSED(self);
+
+    MYDB_BEGIN_ALLOW_THREADS;
+    err = self->dbc->c_del(self->dbc, flags);
+    MYDB_END_ALLOW_THREADS;
+    RETURN_IF_ERR();
+
+    self->mydb->haveStat = 0;
+    RETURN_NONE();
+}
+
+
+static PyObject*
+DBC_dup(DBCursorObject* self, PyObject* args)
+{
+    int err, flags =0;
+    DBC* dbc = NULL;
+
+    if (!PyArg_ParseTuple(args, "|i:dup", &flags))
+        return NULL;
+
+    CHECK_CURSOR_NOT_CLOSED(self);
+
+    MYDB_BEGIN_ALLOW_THREADS;
+    err = self->dbc->c_dup(self->dbc, &dbc, flags);
+    MYDB_END_ALLOW_THREADS;
+    RETURN_IF_ERR();
+
+    return (PyObject*) newDBCursorObject(dbc, self->mydb);
+}
+
+static PyObject*
+DBC_first(DBCursorObject* self, PyObject* args, PyObject* kwargs)
+{
+    return _DBCursor_get(self,DB_FIRST,args,kwargs,"|iii:first");
+}
+
+
+static PyObject*
+DBC_get(DBCursorObject* self, PyObject* args, PyObject *kwargs)
+{
+    int err, flags;
+    PyObject* keyobj = NULL;
+    PyObject* dataobj = NULL;
+    PyObject* retval = NULL;
+    int dlen = -1;
+    int doff = -1;
+    DBT key, data;
+    char* kwnames[] = { "key","data", "flags", "dlen", "doff", NULL };
+
+    CLEAR_DBT(key);
+    CLEAR_DBT(data);
+    if (!PyArg_ParseTupleAndKeywords(args, kwargs, "i|ii:get", &kwnames[2],
+				     &flags, &dlen, &doff)) {
+        PyErr_Clear();
+        if (!PyArg_ParseTupleAndKeywords(args, kwargs, "Oi|ii:get", &kwnames[1], 
+					 &keyobj, &flags, &dlen, &doff)) {
+            PyErr_Clear();
+            if (!PyArg_ParseTupleAndKeywords(args, kwargs, "OOi|ii:get", kwnames,
+				  &keyobj, &dataobj, &flags, &dlen, &doff)) {
+                return NULL;
+	    }
+	}
+    }
+
+    CHECK_CURSOR_NOT_CLOSED(self);
+
+    if (keyobj && !make_key_dbt(self->mydb, keyobj, &key, NULL))
+        return NULL;
+    if (dataobj && !make_dbt(dataobj, &data))
+        return NULL;
+    if (!add_partial_dbt(&data, dlen, doff))
+        return NULL;
+
+    if (CHECK_DBFLAG(self->mydb, DB_THREAD)) {
+        data.flags = DB_DBT_MALLOC;
+        key.flags = DB_DBT_MALLOC;
+    }
+
+    MYDB_BEGIN_ALLOW_THREADS;
+    err = self->dbc->c_get(self->dbc, &key, &data, flags);
+    MYDB_END_ALLOW_THREADS;
+
+
+    if ((err == DB_NOTFOUND) && self->mydb->getReturnsNone) {
+        Py_INCREF(Py_None);
+        retval = Py_None;
+    }
+    else if (makeDBError(err)) {
+        retval = NULL;
+    }
+    else {
+        switch (_DB_get_type(self->mydb)) {
+        case -1:
+            retval = NULL;
+            break;
+        case DB_BTREE:
+        case DB_HASH:
+        default:
+            retval = Py_BuildValue("s#s#", key.data, key.size,
+                                   data.data, data.size);
+            break;
+        case DB_RECNO:
+        case DB_QUEUE:
+            retval = Py_BuildValue("is#", *((db_recno_t*)key.data),
+                                   data.data, data.size);
+            break;
+        }
+        FREE_DBT(key);
+        FREE_DBT(data);
+    }
+    return retval;
+}
+
+
+static PyObject*
+DBC_get_recno(DBCursorObject* self, PyObject* args)
+{
+    int err;
+    db_recno_t recno;
+    DBT key;
+    DBT data;
+
+    if (!PyArg_ParseTuple(args, ":get_recno"))
+        return NULL;
+
+    CHECK_CURSOR_NOT_CLOSED(self);
+
+    CLEAR_DBT(key);
+    CLEAR_DBT(data);
+    if (CHECK_DBFLAG(self->mydb, DB_THREAD)) {
+        /* Tell BerkeleyDB to malloc the return value (thread safe) */
+        data.flags = DB_DBT_MALLOC;
+        key.flags = DB_DBT_MALLOC;
+    }
+
+    MYDB_BEGIN_ALLOW_THREADS;
+    err = self->dbc->c_get(self->dbc, &key, &data, DB_GET_RECNO);
+    MYDB_END_ALLOW_THREADS;
+    RETURN_IF_ERR();
+
+    recno = *((db_recno_t*)data.data);
+    FREE_DBT(key);
+    FREE_DBT(data);
+    return PyInt_FromLong(recno);
+}
+
+
+static PyObject*
+DBC_last(DBCursorObject* self, PyObject* args, PyObject *kwargs)
+{
+    return _DBCursor_get(self,DB_LAST,args,kwargs,"|iii:last");
+}
+
+
+static PyObject*
+DBC_next(DBCursorObject* self, PyObject* args, PyObject *kwargs)
+{
+    return _DBCursor_get(self,DB_NEXT,args,kwargs,"|iii:next");
+}
+
+
+static PyObject*
+DBC_prev(DBCursorObject* self, PyObject* args, PyObject *kwargs)
+{
+    return _DBCursor_get(self,DB_PREV,args,kwargs,"|iii:prev");
+}
+
+
+static PyObject*
+DBC_put(DBCursorObject* self, PyObject* args, PyObject* kwargs)
+{
+    int err, flags = 0;
+    PyObject* keyobj, *dataobj;
+    DBT key, data;
+    char* kwnames[] = { "key", "data", "flags", "dlen", "doff", NULL };
+    int dlen = -1;
+    int doff = -1;
+
+    if (!PyArg_ParseTupleAndKeywords(args, kwargs, "OO|iii:put", kwnames,
+				     &keyobj, &dataobj, &flags, &dlen, &doff))
+        return NULL;
+
+    CHECK_CURSOR_NOT_CLOSED(self);
+
+    if (!make_key_dbt(self->mydb, keyobj, &key, NULL))
+        return NULL;
+    if (!make_dbt(dataobj, &data))
+        return NULL;
+    if (!add_partial_dbt(&data, dlen, doff)) return NULL;
+
+    MYDB_BEGIN_ALLOW_THREADS;
+    err = self->dbc->c_put(self->dbc, &key, &data, flags);
+    MYDB_END_ALLOW_THREADS;
+    FREE_DBT(key);
+    RETURN_IF_ERR();
+    self->mydb->haveStat = 0;
+    RETURN_NONE();
+}
+
+
+static PyObject*
+DBC_set(DBCursorObject* self, PyObject* args, PyObject *kwargs)
+{
+    int err, flags = 0;
+    DBT key, data;
+    PyObject* retval, *keyobj;
+    char* kwnames[] = { "key", "flags", "dlen", "doff", NULL };
+    int dlen = -1;
+    int doff = -1;
+
+    if (!PyArg_ParseTupleAndKeywords(args, kwargs, "O|iii:set", kwnames,
+				     &keyobj, &flags, &dlen, &doff))
+        return NULL;
+
+    CHECK_CURSOR_NOT_CLOSED(self);
+
+    if (!make_key_dbt(self->mydb, keyobj, &key, NULL))
+        return NULL;
+
+    CLEAR_DBT(data);
+    if (CHECK_DBFLAG(self->mydb, DB_THREAD)) {
+        /* Tell BerkeleyDB to malloc the return value (thread safe) */
+        data.flags = DB_DBT_MALLOC;
+    }
+    if (!add_partial_dbt(&data, dlen, doff))
+        return NULL;
+
+    MYDB_BEGIN_ALLOW_THREADS;
+    err = self->dbc->c_get(self->dbc, &key, &data, flags|DB_SET);
+    MYDB_END_ALLOW_THREADS;
+    if (makeDBError(err)) {
+        retval = NULL;
+    }
+    else {
+        switch (_DB_get_type(self->mydb)) {
+        case -1:
+            retval = NULL;
+            break;
+        case DB_BTREE:
+        case DB_HASH:
+        default:
+            retval = Py_BuildValue("s#s#", key.data, key.size,
+                                   data.data, data.size);
+            break;
+        case DB_RECNO:
+        case DB_QUEUE:
+            retval = Py_BuildValue("is#", *((db_recno_t*)key.data),
+                                   data.data, data.size);
+            break;
+        }
+        FREE_DBT(key);
+        FREE_DBT(data);
+    }
+
+    return retval;
+}
+
+
+static PyObject*
+DBC_set_range(DBCursorObject* self, PyObject* args, PyObject* kwargs)
+{
+    int err, flags = 0;
+    DBT key, data;
+    PyObject* retval, *keyobj;
+    char* kwnames[] = { "key", "flags", "dlen", "doff", NULL };
+    int dlen = -1;
+    int doff = -1;
+
+    if (!PyArg_ParseTupleAndKeywords(args, kwargs, "O|iii:set_range", kwnames,
+				     &keyobj, &flags, &dlen, &doff))
+        return NULL;
+
+    CHECK_CURSOR_NOT_CLOSED(self);
+
+    if (!make_key_dbt(self->mydb, keyobj, &key, NULL))
+        return NULL;
+
+    CLEAR_DBT(data);
+    if (CHECK_DBFLAG(self->mydb, DB_THREAD)) {
+        /* Tell BerkeleyDB to malloc the return value (thread safe) */
+        data.flags = DB_DBT_MALLOC;
+        key.flags = DB_DBT_MALLOC;
+    }
+    if (!add_partial_dbt(&data, dlen, doff))
+        return NULL;
+    MYDB_BEGIN_ALLOW_THREADS;
+    err = self->dbc->c_get(self->dbc, &key, &data, flags|DB_SET_RANGE);
+    MYDB_END_ALLOW_THREADS;
+    if (makeDBError(err)) {
+        retval = NULL;
+    }
+    else {
+        switch (_DB_get_type(self->mydb)) {
+        case -1:
+            retval = NULL;
+            break;
+        case DB_BTREE:
+        case DB_HASH:
+        default:
+            retval = Py_BuildValue("s#s#", key.data, key.size,
+                                   data.data, data.size);
+            break;
+        case DB_RECNO:
+        case DB_QUEUE:
+            retval = Py_BuildValue("is#", *((db_recno_t*)key.data),
+                                   data.data, data.size);
+            break;
+        }
+        FREE_DBT(key);
+        FREE_DBT(data);
+    }
+
+    return retval;
+}
+
+
+static PyObject*
+DBC_get_both(DBCursorObject* self, PyObject* args)
+{
+    int err, flags=0;
+    DBT key, data;
+    PyObject* retval, *keyobj, *dataobj;
+
+    if (!PyArg_ParseTuple(args, "OO|i:get_both", &keyobj, &dataobj, &flags))
+        return NULL;
+
+    CHECK_CURSOR_NOT_CLOSED(self);
+
+    if (!make_key_dbt(self->mydb, keyobj, &key, NULL))
+        return NULL;
+    if (!make_dbt(dataobj, &data))
+        return NULL;
+
+    MYDB_BEGIN_ALLOW_THREADS;
+    err = self->dbc->c_get(self->dbc, &key, &data, flags|DB_GET_BOTH);
+    MYDB_END_ALLOW_THREADS;
+    if (makeDBError(err)) {
+        retval = NULL;
+    }
+    else {
+        switch (_DB_get_type(self->mydb)) {
+        case -1:
+            retval = NULL;
+            break;
+        case DB_BTREE:
+        case DB_HASH:
+        default:
+            retval = Py_BuildValue("s#s#", key.data, key.size,
+                                   data.data, data.size);
+            break;
+        case DB_RECNO:
+        case DB_QUEUE:
+            retval = Py_BuildValue("is#", *((db_recno_t*)key.data),
+                                   data.data, data.size);
+            break;
+        }
+    }
+
+    FREE_DBT(key);
+    return retval;
+}
+
+
+static PyObject*
+DBC_set_recno(DBCursorObject* self, PyObject* args, PyObject *kwargs)
+{
+    int err, irecno, flags=0;
+    db_recno_t recno;
+    DBT key, data;
+    PyObject* retval;
+    int dlen = -1;
+    int doff = -1;
+    char* kwnames[] = { "recno","flags", "dlen", "doff", NULL };
+
+    if (!PyArg_ParseTupleAndKeywords(args, kwargs, "i|iii:set_recno", kwnames,
+				     &irecno, &flags, &dlen, &doff))
+      return NULL;
+
+    CHECK_CURSOR_NOT_CLOSED(self);
+
+    CLEAR_DBT(key);
+    recno = (db_recno_t) irecno;
+    /* use allocated space so DB will be able to realloc room for the real key */
+    key.data = malloc(sizeof(db_recno_t));
+    if (key.data == NULL) {
+        PyErr_SetString(PyExc_MemoryError, "Key memory allocation failed");
+        return NULL;
+    }
+    key.size = sizeof(db_recno_t);
+    key.ulen = key.size;
+    memcpy(key.data, &recno, sizeof(db_recno_t));
+    key.flags = DB_DBT_REALLOC;
+
+    CLEAR_DBT(data);
+    if (CHECK_DBFLAG(self->mydb, DB_THREAD)) {
+        /* Tell BerkeleyDB to malloc the return value (thread safe) */
+        data.flags = DB_DBT_MALLOC;
+    }
+    if (!add_partial_dbt(&data, dlen, doff))
+        return NULL;
+
+    MYDB_BEGIN_ALLOW_THREADS;
+    err = self->dbc->c_get(self->dbc, &key, &data, flags|DB_SET_RECNO);
+    MYDB_END_ALLOW_THREADS;
+    if (makeDBError(err)) {
+        retval = NULL;
+    }
+    else {  /* Can only be used for BTrees, so no need to return int key */
+        retval = Py_BuildValue("s#s#", key.data, key.size,
+                               data.data, data.size);
+        FREE_DBT(key);
+        FREE_DBT(data);
+    }
+
+    return retval;
+}
+
+
+static PyObject*
+DBC_consume(DBCursorObject* self, PyObject* args, PyObject *kwargs)
+{
+    return _DBCursor_get(self,DB_CONSUME,args,kwargs,"|iii:consume");
+}
+
+
+static PyObject*
+DBC_next_dup(DBCursorObject* self, PyObject* args, PyObject *kwargs)
+{
+    return _DBCursor_get(self,DB_NEXT_DUP,args,kwargs,"|iii:next_dup");
+}
+
+
+static PyObject*
+DBC_next_nodup(DBCursorObject* self, PyObject* args, PyObject *kwargs)
+{
+    return _DBCursor_get(self,DB_NEXT_NODUP,args,kwargs,"|iii:next_nodup");
+}
+
+
+static PyObject*
+DBC_prev_nodup(DBCursorObject* self, PyObject* args, PyObject *kwargs)
+{
+    return _DBCursor_get(self,DB_PREV_NODUP,args,kwargs,"|iii:prev_nodup");
+}
+
+
+static PyObject*
+DBC_join_item(DBCursorObject* self, PyObject* args)
+{
+    int err;
+    DBT key, data;
+    PyObject* retval;
+
+    if (!PyArg_ParseTuple(args, ":join_item"))
+        return NULL;
+
+    CHECK_CURSOR_NOT_CLOSED(self);
+
+    CLEAR_DBT(key);
+    CLEAR_DBT(data);
+    if (CHECK_DBFLAG(self->mydb, DB_THREAD)) {
+        /* Tell BerkeleyDB to malloc the return value (thread safe) */
+        key.flags = DB_DBT_MALLOC;
+    }
+
+    MYDB_BEGIN_ALLOW_THREADS;
+    err = self->dbc->c_get(self->dbc, &key, &data, DB_JOIN_ITEM);
+    MYDB_END_ALLOW_THREADS;
+    if (makeDBError(err)) {
+        retval = NULL;
+    }
+    else {
+        retval = Py_BuildValue("s#s#", key.data, key.size);
+        FREE_DBT(key);
+    }
+
+    return retval;
+}
+
+
+
+/* --------------------------------------------------------------------- */
+/* DBEnv methods */
+
+
+static PyObject*
+DBEnv_close(DBEnvObject* self, PyObject* args)
+{
+    int err, flags = 0;
+
+    if (!PyArg_ParseTuple(args, "|i:close", &flags))
+        return NULL;
+    if (!self->closed) {      /* Don't close more than once */
+        MYDB_BEGIN_ALLOW_THREADS;
+        err = self->db_env->close(self->db_env, flags);
+        MYDB_END_ALLOW_THREADS;
+        /* after calling DBEnv->close, regardless of error, this DBEnv
+         * may not be accessed again (BerkeleyDB docs). */
+        self->closed = 1;
+        self->db_env = NULL;
+        RETURN_IF_ERR();
+    }
+    RETURN_NONE();
+}
+
+
+static PyObject*
+DBEnv_open(DBEnvObject* self, PyObject* args)
+{
+    int err, flags=0, mode=0660;
+    char *db_home;
+
+    if (!PyArg_ParseTuple(args, "z|ii:open", &db_home, &flags, &mode))
+        return NULL;
+
+    CHECK_ENV_NOT_CLOSED(self);
+
+    MYDB_BEGIN_ALLOW_THREADS;
+    err = self->db_env->open(self->db_env, db_home, flags, mode);
+    MYDB_END_ALLOW_THREADS;
+    RETURN_IF_ERR();
+    self->closed = 0;
+    self->flags = flags;
+    RETURN_NONE();
+}
+
+
+static PyObject*
+DBEnv_remove(DBEnvObject* self, PyObject* args)
+{
+    int err, flags=0;
+    char *db_home;
+
+    if (!PyArg_ParseTuple(args, "s|i:remove", &db_home, &flags))
+        return NULL;
+    CHECK_ENV_NOT_CLOSED(self);
+    MYDB_BEGIN_ALLOW_THREADS;
+    err = self->db_env->remove(self->db_env, db_home, flags);
+    MYDB_END_ALLOW_THREADS;
+    RETURN_IF_ERR();
+    RETURN_NONE();
+}
+
+
+static PyObject*
+DBEnv_set_cachesize(DBEnvObject* self, PyObject* args)
+{
+    int err, gbytes=0, bytes=0, ncache=0;
+
+    if (!PyArg_ParseTuple(args, "ii|i:set_cachesize",
+                          &gbytes, &bytes, &ncache))
+        return NULL;
+    CHECK_ENV_NOT_CLOSED(self);
+
+    MYDB_BEGIN_ALLOW_THREADS;
+    err = self->db_env->set_cachesize(self->db_env, gbytes, bytes, ncache);
+    MYDB_END_ALLOW_THREADS;
+    RETURN_IF_ERR();
+    RETURN_NONE();
+}
+
+
+#if (DBVER >= 32)
+static PyObject*
+DBEnv_set_flags(DBEnvObject* self, PyObject* args)
+{
+    int err, flags=0, onoff=0;
+
+    if (!PyArg_ParseTuple(args, "ii:set_flags",
+                          &flags, &onoff))
+        return NULL;
+    CHECK_ENV_NOT_CLOSED(self);
+
+    MYDB_BEGIN_ALLOW_THREADS;
+    err = self->db_env->set_flags(self->db_env, flags, onoff);
+    MYDB_END_ALLOW_THREADS;
+    RETURN_IF_ERR();
+    RETURN_NONE();
+}
+#endif
+
+
+static PyObject*
+DBEnv_set_data_dir(DBEnvObject* self, PyObject* args)
+{
+    int err;
+    char *dir;
+
+    if (!PyArg_ParseTuple(args, "s:set_data_dir", &dir))
+        return NULL;
+    CHECK_ENV_NOT_CLOSED(self);
+
+    MYDB_BEGIN_ALLOW_THREADS;
+    err = self->db_env->set_data_dir(self->db_env, dir);
+    MYDB_END_ALLOW_THREADS;
+    RETURN_IF_ERR();
+    RETURN_NONE();
+}
+
+
+static PyObject*
+DBEnv_set_lg_bsize(DBEnvObject* self, PyObject* args)
+{
+    int err, lg_bsize;
+
+    if (!PyArg_ParseTuple(args, "i:set_lg_bsize", &lg_bsize))
+        return NULL;
+    CHECK_ENV_NOT_CLOSED(self);
+
+    MYDB_BEGIN_ALLOW_THREADS;
+    err = self->db_env->set_lg_bsize(self->db_env, lg_bsize);
+    MYDB_END_ALLOW_THREADS;
+    RETURN_IF_ERR();
+    RETURN_NONE();
+}
+
+
+static PyObject*
+DBEnv_set_lg_dir(DBEnvObject* self, PyObject* args)
+{
+    int err;
+    char *dir;
+
+    if (!PyArg_ParseTuple(args, "s:set_lg_dir", &dir))
+        return NULL;
+    CHECK_ENV_NOT_CLOSED(self);
+
+    MYDB_BEGIN_ALLOW_THREADS;
+    err = self->db_env->set_lg_dir(self->db_env, dir);
+    MYDB_END_ALLOW_THREADS;
+    RETURN_IF_ERR();
+    RETURN_NONE();
+}
+
+static PyObject*
+DBEnv_set_lg_max(DBEnvObject* self, PyObject* args)
+{
+    int err, lg_max;
+
+    if (!PyArg_ParseTuple(args, "i:set_lg_max", &lg_max))
+        return NULL;
+    CHECK_ENV_NOT_CLOSED(self);
+
+    MYDB_BEGIN_ALLOW_THREADS;
+    err = self->db_env->set_lg_max(self->db_env, lg_max);
+    MYDB_END_ALLOW_THREADS;
+    RETURN_IF_ERR();
+    RETURN_NONE();
+}
+
+
+static PyObject*
+DBEnv_set_lk_detect(DBEnvObject* self, PyObject* args)
+{
+    int err, lk_detect;
+
+    if (!PyArg_ParseTuple(args, "i:set_lk_detect", &lk_detect))
+        return NULL;
+    CHECK_ENV_NOT_CLOSED(self);
+
+    MYDB_BEGIN_ALLOW_THREADS;
+    err = self->db_env->set_lk_detect(self->db_env, lk_detect);
+    MYDB_END_ALLOW_THREADS;
+    RETURN_IF_ERR();
+    RETURN_NONE();
+}
+
+
+static PyObject*
+DBEnv_set_lk_max(DBEnvObject* self, PyObject* args)
+{
+    int err, max;
+
+    if (!PyArg_ParseTuple(args, "i:set_lk_max", &max))
+        return NULL;
+    CHECK_ENV_NOT_CLOSED(self);
+
+    MYDB_BEGIN_ALLOW_THREADS;
+    err = self->db_env->set_lk_max(self->db_env, max);
+    MYDB_END_ALLOW_THREADS;
+    RETURN_IF_ERR();
+    RETURN_NONE();
+}
+
+
+#if (DBVER >= 32)
+
+static PyObject*
+DBEnv_set_lk_max_locks(DBEnvObject* self, PyObject* args)
+{
+    int err, max;
+
+    if (!PyArg_ParseTuple(args, "i:set_lk_max_locks", &max))
+        return NULL;
+    CHECK_ENV_NOT_CLOSED(self);
+
+    MYDB_BEGIN_ALLOW_THREADS;
+    err = self->db_env->set_lk_max_locks(self->db_env, max);
+    MYDB_END_ALLOW_THREADS;
+    RETURN_IF_ERR();
+    RETURN_NONE();
+}
+
+
+static PyObject*
+DBEnv_set_lk_max_lockers(DBEnvObject* self, PyObject* args)
+{
+    int err, max;
+
+    if (!PyArg_ParseTuple(args, "i:set_lk_max_lockers", &max))
+        return NULL;
+    CHECK_ENV_NOT_CLOSED(self);
+
+    MYDB_BEGIN_ALLOW_THREADS;
+    err = self->db_env->set_lk_max_lockers(self->db_env, max);
+    MYDB_END_ALLOW_THREADS;
+    RETURN_IF_ERR();
+    RETURN_NONE();
+}
+
+
+static PyObject*
+DBEnv_set_lk_max_objects(DBEnvObject* self, PyObject* args)
+{
+    int err, max;
+
+    if (!PyArg_ParseTuple(args, "i:set_lk_max_objects", &max))
+        return NULL;
+    CHECK_ENV_NOT_CLOSED(self);
+
+    MYDB_BEGIN_ALLOW_THREADS;
+    err = self->db_env->set_lk_max_objects(self->db_env, max);
+    MYDB_END_ALLOW_THREADS;
+    RETURN_IF_ERR();
+    RETURN_NONE();
+}
+
+#endif
+
+
+static PyObject*
+DBEnv_set_mp_mmapsize(DBEnvObject* self, PyObject* args)
+{
+    int err, mp_mmapsize;
+
+    if (!PyArg_ParseTuple(args, "i:set_mp_mmapsize", &mp_mmapsize))
+        return NULL;
+    CHECK_ENV_NOT_CLOSED(self);
+
+    MYDB_BEGIN_ALLOW_THREADS;
+    err = self->db_env->set_mp_mmapsize(self->db_env, mp_mmapsize);
+    MYDB_END_ALLOW_THREADS;
+    RETURN_IF_ERR();
+    RETURN_NONE();
+}
+
+
+static PyObject*
+DBEnv_set_tmp_dir(DBEnvObject* self, PyObject* args)
+{
+    int err;
+    char *dir;
+
+    if (!PyArg_ParseTuple(args, "s:set_tmp_dir", &dir))
+        return NULL;
+    CHECK_ENV_NOT_CLOSED(self);
+
+    MYDB_BEGIN_ALLOW_THREADS;
+    err = self->db_env->set_tmp_dir(self->db_env, dir);
+    MYDB_END_ALLOW_THREADS;
+    RETURN_IF_ERR();
+    RETURN_NONE();
+}
+
+
+static PyObject*
+DBEnv_txn_begin(DBEnvObject* self, PyObject* args, PyObject* kwargs)
+{
+    int flags = 0;
+    PyObject* txnobj = NULL;
+    DB_TXN *txn = NULL;
+    char* kwnames[] = { "parent", "flags", NULL };
+
+    if (!PyArg_ParseTupleAndKeywords(args, kwargs, "|Oi:txn_begin", kwnames,
+                                     &txnobj, &flags))
+        return NULL;
+
+    if (!checkTxnObj(txnobj, &txn))
+        return NULL;
+    CHECK_ENV_NOT_CLOSED(self);
+
+    return (PyObject*)newDBTxnObject(self, txn, flags);
+}
+
+
+static PyObject*
+DBEnv_txn_checkpoint(DBEnvObject* self, PyObject* args)
+{
+    int err, kbyte=0, min=0, flags=0;
+
+    if (!PyArg_ParseTuple(args, "|iii:txn_checkpoint", &kbyte, &min, &flags))
+        return NULL;
+    CHECK_ENV_NOT_CLOSED(self);
+
+    MYDB_BEGIN_ALLOW_THREADS;
+#if (DBVER >= 40)
+    err = self->db_env->txn_checkpoint(self->db_env, kbyte, min, flags);
+#else
+    err = txn_checkpoint(self->db_env, kbyte, min, flags);
+#endif
+    MYDB_END_ALLOW_THREADS;
+    RETURN_IF_ERR();
+    RETURN_NONE();
+}
+
+
+static PyObject*
+DBEnv_set_tx_max(DBEnvObject* self, PyObject* args)
+{
+    int err, max;
+
+    if (!PyArg_ParseTuple(args, "i:set_tx_max", &max))
+        return NULL;
+    CHECK_ENV_NOT_CLOSED(self);
+
+    MYDB_BEGIN_ALLOW_THREADS;
+    err = self->db_env->set_tx_max(self->db_env, max);
+    MYDB_END_ALLOW_THREADS;
+    RETURN_IF_ERR();
+    RETURN_NONE();
+}
+
+
+static PyObject*
+DBEnv_lock_detect(DBEnvObject* self, PyObject* args)
+{
+    int err, atype, flags=0;
+    int aborted = 0;
+
+    if (!PyArg_ParseTuple(args, "i|i:lock_detect", &atype, &flags))
+        return NULL;
+    CHECK_ENV_NOT_CLOSED(self);
+
+    MYDB_BEGIN_ALLOW_THREADS;
+#if (DBVER >= 40)
+    err = self->db_env->lock_detect(self->db_env, flags, atype, &aborted);
+#else
+    err = lock_detect(self->db_env, flags, atype, &aborted);
+#endif
+    MYDB_END_ALLOW_THREADS;
+    RETURN_IF_ERR();
+    return PyInt_FromLong(aborted);
+}
+
+
+static PyObject*
+DBEnv_lock_get(DBEnvObject* self, PyObject* args)
+{
+    int flags=0;
+    int locker, lock_mode;
+    DBT obj;
+    PyObject* objobj;
+
+    if (!PyArg_ParseTuple(args, "iOi|i:lock_get", &locker, &objobj, &lock_mode, &flags))
+        return NULL;
+
+
+    if (!make_dbt(objobj, &obj))
+        return NULL;
+
+    return (PyObject*)newDBLockObject(self, locker, &obj, lock_mode, flags);
+}
+
+
+static PyObject*
+DBEnv_lock_id(DBEnvObject* self, PyObject* args)
+{
+    int err;
+    u_int32_t theID;
+
+    if (!PyArg_ParseTuple(args, ":lock_id"))
+        return NULL;
+
+    CHECK_ENV_NOT_CLOSED(self);
+    MYDB_BEGIN_ALLOW_THREADS;
+#if (DBVER >= 40)
+    err = self->db_env->lock_id(self->db_env, &theID);
+#else
+    err = lock_id(self->db_env, &theID);
+#endif
+    MYDB_END_ALLOW_THREADS;
+    RETURN_IF_ERR();
+
+    return PyInt_FromLong((long)theID);
+}
+
+
+static PyObject*
+DBEnv_lock_put(DBEnvObject* self, PyObject* args)
+{
+    int err;
+    DBLockObject* dblockobj;
+
+    if (!PyArg_ParseTuple(args, "O!:lock_put", &DBLock_Type, &dblockobj))
+        return NULL;
+
+    CHECK_ENV_NOT_CLOSED(self);
+    MYDB_BEGIN_ALLOW_THREADS;
+#if (DBVER >= 40)
+    err = self->db_env->lock_put(self->db_env, &dblockobj->lock);
+#else
+    err = lock_put(self->db_env, &dblockobj->lock);
+#endif
+    MYDB_END_ALLOW_THREADS;
+    RETURN_IF_ERR();
+    RETURN_NONE();
+}
+
+
+static PyObject*
+DBEnv_lock_stat(DBEnvObject* self, PyObject* args)
+{
+    int err;
+    DB_LOCK_STAT* sp;
+    PyObject* d = NULL;
+    u_int32_t flags;
+
+    if (!PyArg_ParseTuple(args, "|i:lock_stat", &flags))
+        return NULL;
+    CHECK_ENV_NOT_CLOSED(self);
+
+    MYDB_BEGIN_ALLOW_THREADS;
+#if (DBVER >= 40)
+    err = self->db_env->lock_stat(self->db_env, &sp, flags);
+#else
+#if (DBVER >= 33)
+    err = lock_stat(self->db_env, &sp);
+#else
+    err = lock_stat(self->db_env, &sp, NULL);
+#endif
+#endif
+    MYDB_END_ALLOW_THREADS;
+    RETURN_IF_ERR();
+
+    /* Turn the stat structure into a dictionary */
+    d = PyDict_New();
+    if (d == NULL) {
+        free(sp);
+        return NULL;
+    }
+
+#define MAKE_ENTRY(name)  _addIntToDict(d, #name, sp->st_##name)
+
+    MAKE_ENTRY(lastid);
+    MAKE_ENTRY(nmodes);
+#if (DBVER >= 32)
+    MAKE_ENTRY(maxlocks);
+    MAKE_ENTRY(maxlockers);
+    MAKE_ENTRY(maxobjects);
+    MAKE_ENTRY(nlocks);
+    MAKE_ENTRY(maxnlocks);
+#endif
+    MAKE_ENTRY(nlockers);
+    MAKE_ENTRY(maxnlockers);
+#if (DBVER >= 32)
+    MAKE_ENTRY(nobjects);
+    MAKE_ENTRY(maxnobjects);
+#endif
+    MAKE_ENTRY(nrequests);
+    MAKE_ENTRY(nreleases);
+    MAKE_ENTRY(nnowaits);
+    MAKE_ENTRY(nconflicts);
+    MAKE_ENTRY(ndeadlocks);
+    MAKE_ENTRY(regsize);
+    MAKE_ENTRY(region_wait);
+    MAKE_ENTRY(region_nowait);
+
+#undef MAKE_ENTRY
+    free(sp);
+    return d;
+}
+
+
+static PyObject*
+DBEnv_log_archive(DBEnvObject* self, PyObject* args)
+{
+    int flags=0;
+    int err;
+    char **log_list_start, **log_list;
+    PyObject* list;
+    PyObject* item = NULL;
+
+    if (!PyArg_ParseTuple(args, "|i:log_archive", &flags))
+        return NULL;
+
+    CHECK_ENV_NOT_CLOSED(self);
+    MYDB_BEGIN_ALLOW_THREADS;
+#if (DBVER >= 40)
+    err = self->db_env->log_archive(self->db_env, &log_list, flags);
+#elif (DBVER == 33)
+    err = log_archive(self->db_env, &log_list, flags);
+#else
+    err = log_archive(self->db_env, &log_list, flags, NULL);
+#endif
+    MYDB_END_ALLOW_THREADS;
+    RETURN_IF_ERR();
+
+    list = PyList_New(0);
+    if (list == NULL) {
+        PyErr_SetString(PyExc_MemoryError, "PyList_New failed");
+        return NULL;
+    }
+
+    if (log_list) {
+        for (log_list_start = log_list; *log_list != NULL; ++log_list) {
+            item = PyString_FromString (*log_list);
+            if (item == NULL) {
+                Py_DECREF(list);
+                PyErr_SetString(PyExc_MemoryError, "List item creation failed");
+                list = NULL;
+                break;
+            }
+            PyList_Append(list, item);
+            Py_DECREF(item);
+        }
+        free(log_list_start);
+    }
+    return list;
+}
+
+
+static PyObject*
+DBEnv_txn_stat(DBEnvObject* self, PyObject* args)
+{
+    int err;
+    DB_TXN_STAT* sp;
+    PyObject* d = NULL;
+    u_int32_t flags;
+
+    if (!PyArg_ParseTuple(args, "|i:txn_stat", &flags))
+        return NULL;
+    CHECK_ENV_NOT_CLOSED(self);
+
+    MYDB_BEGIN_ALLOW_THREADS;
+#if (DBVER >= 40)
+    err = self->db_env->txn_stat(self->db_env, &sp, flags);
+#elif (DBVER == 33)
+    err = txn_stat(self->db_env, &sp);
+#else
+    err = txn_stat(self->db_env, &sp, NULL);
+#endif
+    MYDB_END_ALLOW_THREADS;
+    RETURN_IF_ERR();
+
+    /* Turn the stat structure into a dictionary */
+    d = PyDict_New();
+    if (d == NULL) {
+        free(sp);
+        return NULL;
+    }
+
+#define MAKE_ENTRY(name)  _addIntToDict(d, #name, sp->st_##name)
+
+    MAKE_ENTRY(time_ckp);
+    MAKE_ENTRY(last_txnid);
+    MAKE_ENTRY(maxtxns);
+    MAKE_ENTRY(nactive);
+    MAKE_ENTRY(maxnactive);
+    MAKE_ENTRY(nbegins);
+    MAKE_ENTRY(naborts);
+    MAKE_ENTRY(ncommits);
+    MAKE_ENTRY(regsize);
+    MAKE_ENTRY(region_wait);
+    MAKE_ENTRY(region_nowait);
+
+#undef MAKE_ENTRY
+    free(sp);
+    return d;
+}
+
+
+static PyObject*
+DBEnv_set_get_returns_none(DBEnvObject* self, PyObject* args)
+{
+    int flags=0;
+    int oldValue;
+
+    if (!PyArg_ParseTuple(args,"i:set_get_returns_none", &flags))
+        return NULL;
+    CHECK_ENV_NOT_CLOSED(self);
+
+    oldValue = self->getReturnsNone;
+    self->getReturnsNone = flags;
+    return PyInt_FromLong(oldValue);
+}
+
+
+/* --------------------------------------------------------------------- */
+/* DBTxn methods */
+
+
+static PyObject*
+DBTxn_commit(DBTxnObject* self, PyObject* args)
+{
+    int flags=0, err;
+
+    if (!PyArg_ParseTuple(args, "|i:commit", &flags))
+        return NULL;
+
+    MYDB_BEGIN_ALLOW_THREADS;
+#if (DBVER >= 40)
+    err = self->txn->commit(self->txn, flags);
+#else
+    err = txn_commit(self->txn, flags);
+#endif
+    MYDB_END_ALLOW_THREADS;
+    RETURN_IF_ERR();
+    RETURN_NONE();
+}
+
+static PyObject*
+DBTxn_prepare(DBTxnObject* self, PyObject* args)
+{
+#if (DBVER >= 33)
+    int err;
+    char* gid=NULL;
+    int   gid_size=0;
+
+    if (!PyArg_ParseTuple(args, "s#:prepare", &gid, &gid_size))
+        return NULL;
+
+    if (gid_size != DB_XIDDATASIZE) {
+        PyErr_SetString(PyExc_TypeError,
+                        "gid must be DB_XIDDATASIZE bytes long");
+        return NULL;
+    }
+
+    MYDB_BEGIN_ALLOW_THREADS;
+#if (DBVER >= 40)
+    err = self->txn->prepare(self->txn, (u_int8_t*)gid);
+#else
+    err = txn_prepare(self->txn, (u_int8_t*)gid);
+#endif
+    MYDB_END_ALLOW_THREADS;
+    RETURN_IF_ERR();
+    RETURN_NONE();
+#else
+    int err;
+
+    if (!PyArg_ParseTuple(args, ":prepare"))
+        return NULL;
+
+    MYDB_BEGIN_ALLOW_THREADS;
+    err = txn_prepare(self->txn);
+    MYDB_END_ALLOW_THREADS;
+    RETURN_IF_ERR();
+    RETURN_NONE();
+#endif
+}
+
+
+static PyObject*
+DBTxn_abort(DBTxnObject* self, PyObject* args)
+{
+    int err;
+
+    if (!PyArg_ParseTuple(args, ":abort"))
+        return NULL;
+
+    MYDB_BEGIN_ALLOW_THREADS;
+#if (DBVER >= 40)
+    err = self->txn->abort(self->txn);
+#else
+    err = txn_abort(self->txn);
+#endif
+    MYDB_END_ALLOW_THREADS;
+    RETURN_IF_ERR();
+    RETURN_NONE();
+}
+
+
+static PyObject*
+DBTxn_id(DBTxnObject* self, PyObject* args)
+{
+    int id;
+
+    if (!PyArg_ParseTuple(args, ":id"))
+        return NULL;
+
+    MYDB_BEGIN_ALLOW_THREADS;
+#if (DBVER >= 40)
+    id = self->txn->id(self->txn);
+#else
+    id = txn_id(self->txn);
+#endif
+    MYDB_END_ALLOW_THREADS;
+    return PyInt_FromLong(id);
+}
+
+/* --------------------------------------------------------------------- */
+/* Method definition tables and type objects */
+
+static PyMethodDef DB_methods[] = {
+    {"append",          (PyCFunction)DB_append,         METH_VARARGS},
+#if (DBVER >= 33)
+    {"associate",       (PyCFunction)DB_associate,      METH_VARARGS|METH_KEYWORDS},
+#endif
+    {"close",           (PyCFunction)DB_close,          METH_VARARGS},
+#if (DBVER >= 32)
+    {"consume",         (PyCFunction)DB_consume,        METH_VARARGS|METH_KEYWORDS},
+    {"consume_wait",    (PyCFunction)DB_consume_wait,   METH_VARARGS|METH_KEYWORDS},
+#endif
+    {"cursor",          (PyCFunction)DB_cursor,         METH_VARARGS|METH_KEYWORDS},
+    {"delete",          (PyCFunction)DB_delete,         METH_VARARGS|METH_KEYWORDS},
+    {"fd",              (PyCFunction)DB_fd,             METH_VARARGS},
+    {"get",             (PyCFunction)DB_get,            METH_VARARGS|METH_KEYWORDS},
+    {"get_both",        (PyCFunction)DB_get_both,       METH_VARARGS|METH_KEYWORDS},
+    {"get_byteswapped", (PyCFunction)DB_get_byteswapped,METH_VARARGS},
+    {"get_size",        (PyCFunction)DB_get_size,       METH_VARARGS|METH_KEYWORDS},
+    {"get_type",        (PyCFunction)DB_get_type,       METH_VARARGS},
+    {"join",            (PyCFunction)DB_join,           METH_VARARGS},
+    {"key_range",       (PyCFunction)DB_key_range,      METH_VARARGS|METH_KEYWORDS},
+    {"has_key",         (PyCFunction)DB_has_key,        METH_VARARGS},
+    {"items",           (PyCFunction)DB_items,          METH_VARARGS},
+    {"keys",            (PyCFunction)DB_keys,           METH_VARARGS},
+    {"open",            (PyCFunction)DB_open,           METH_VARARGS|METH_KEYWORDS},
+    {"put",             (PyCFunction)DB_put,            METH_VARARGS|METH_KEYWORDS},
+    {"remove",          (PyCFunction)DB_remove,         METH_VARARGS|METH_KEYWORDS},
+    {"rename",          (PyCFunction)DB_rename,         METH_VARARGS},
+    {"set_bt_minkey",   (PyCFunction)DB_set_bt_minkey,  METH_VARARGS},
+    {"set_cachesize",   (PyCFunction)DB_set_cachesize,  METH_VARARGS},
+    {"set_flags",       (PyCFunction)DB_set_flags,      METH_VARARGS},
+    {"set_h_ffactor",   (PyCFunction)DB_set_h_ffactor,  METH_VARARGS},
+    {"set_h_nelem",     (PyCFunction)DB_set_h_nelem,    METH_VARARGS},
+    {"set_lorder",      (PyCFunction)DB_set_lorder,     METH_VARARGS},
+    {"set_pagesize",    (PyCFunction)DB_set_pagesize,   METH_VARARGS},
+    {"set_re_delim",    (PyCFunction)DB_set_re_delim,   METH_VARARGS},
+    {"set_re_len",      (PyCFunction)DB_set_re_len,     METH_VARARGS},
+    {"set_re_pad",      (PyCFunction)DB_set_re_pad,     METH_VARARGS},
+    {"set_re_source",   (PyCFunction)DB_set_re_source,  METH_VARARGS},
+#if (DBVER >= 32)
+    {"set_q_extentsize",(PyCFunction)DB_set_q_extentsize,METH_VARARGS},
+#endif
+    {"stat",            (PyCFunction)DB_stat,           METH_VARARGS},
+    {"sync",            (PyCFunction)DB_sync,           METH_VARARGS},
+#if (DBVER >= 33)
+    {"truncate",        (PyCFunction)DB_truncate,       METH_VARARGS|METH_KEYWORDS},
+#endif
+    {"type",            (PyCFunction)DB_get_type,       METH_VARARGS},
+    {"upgrade",         (PyCFunction)DB_upgrade,        METH_VARARGS},
+    {"values",          (PyCFunction)DB_values,         METH_VARARGS},
+    {"verify",          (PyCFunction)DB_verify,         METH_VARARGS|METH_KEYWORDS},
+    {"set_get_returns_none",(PyCFunction)DB_set_get_returns_none,      METH_VARARGS},
+    {NULL,      NULL}       /* sentinel */
+};
+
+
+static PyMappingMethods DB_mapping = {
+        (inquiry)DB_length,          /*mp_length*/
+        (binaryfunc)DB_subscript,    /*mp_subscript*/
+        (objobjargproc)DB_ass_sub,   /*mp_ass_subscript*/
+};
+
+
+static PyMethodDef DBCursor_methods[] = {
+    {"close",           (PyCFunction)DBC_close,         METH_VARARGS},
+    {"count",           (PyCFunction)DBC_count,         METH_VARARGS},
+    {"current",         (PyCFunction)DBC_current,       METH_VARARGS|METH_KEYWORDS},
+    {"delete",          (PyCFunction)DBC_delete,        METH_VARARGS},
+    {"dup",             (PyCFunction)DBC_dup,           METH_VARARGS},
+    {"first",           (PyCFunction)DBC_first,         METH_VARARGS|METH_KEYWORDS},
+    {"get",             (PyCFunction)DBC_get,           METH_VARARGS|METH_KEYWORDS},
+    {"get_recno",       (PyCFunction)DBC_get_recno,     METH_VARARGS},
+    {"last",            (PyCFunction)DBC_last,          METH_VARARGS|METH_KEYWORDS},
+    {"next",            (PyCFunction)DBC_next,          METH_VARARGS|METH_KEYWORDS},
+    {"prev",            (PyCFunction)DBC_prev,          METH_VARARGS|METH_KEYWORDS},
+    {"put",             (PyCFunction)DBC_put,           METH_VARARGS|METH_KEYWORDS},
+    {"set",             (PyCFunction)DBC_set,           METH_VARARGS|METH_KEYWORDS},
+    {"set_range",       (PyCFunction)DBC_set_range,     METH_VARARGS|METH_KEYWORDS},
+    {"get_both",        (PyCFunction)DBC_get_both,      METH_VARARGS},
+    {"set_both",        (PyCFunction)DBC_get_both,      METH_VARARGS},
+    {"set_recno",       (PyCFunction)DBC_set_recno,     METH_VARARGS|METH_KEYWORDS},
+    {"consume",         (PyCFunction)DBC_consume,       METH_VARARGS|METH_KEYWORDS},
+    {"next_dup",        (PyCFunction)DBC_next_dup,      METH_VARARGS|METH_KEYWORDS},
+    {"next_nodup",      (PyCFunction)DBC_next_nodup,    METH_VARARGS|METH_KEYWORDS},
+    {"prev_nodup",      (PyCFunction)DBC_prev_nodup,    METH_VARARGS|METH_KEYWORDS},
+    {"join_item",       (PyCFunction)DBC_join_item,     METH_VARARGS},
+    {NULL,      NULL}       /* sentinel */
+};
+
+
+static PyMethodDef DBEnv_methods[] = {
+    {"close",           (PyCFunction)DBEnv_close,            METH_VARARGS},
+    {"open",            (PyCFunction)DBEnv_open,             METH_VARARGS},
+    {"remove",          (PyCFunction)DBEnv_remove,           METH_VARARGS},
+    {"set_cachesize",   (PyCFunction)DBEnv_set_cachesize,    METH_VARARGS},
+    {"set_data_dir",    (PyCFunction)DBEnv_set_data_dir,     METH_VARARGS},
+#if (DBVER >= 32)
+    {"set_flags",       (PyCFunction)DBEnv_set_flags,        METH_VARARGS},
+#endif
+    {"set_lg_bsize",    (PyCFunction)DBEnv_set_lg_bsize,     METH_VARARGS},
+    {"set_lg_dir",      (PyCFunction)DBEnv_set_lg_dir,       METH_VARARGS},
+    {"set_lg_max",      (PyCFunction)DBEnv_set_lg_max,       METH_VARARGS},
+    {"set_lk_detect",   (PyCFunction)DBEnv_set_lk_detect,    METH_VARARGS},
+    {"set_lk_max",      (PyCFunction)DBEnv_set_lk_max,       METH_VARARGS},
+#if (DBVER >= 32)
+    {"set_lk_max_locks", (PyCFunction)DBEnv_set_lk_max_locks, METH_VARARGS},
+    {"set_lk_max_lockers", (PyCFunction)DBEnv_set_lk_max_lockers, METH_VARARGS},
+    {"set_lk_max_objects", (PyCFunction)DBEnv_set_lk_max_objects, METH_VARARGS},
+#endif
+    {"set_mp_mmapsize", (PyCFunction)DBEnv_set_mp_mmapsize,  METH_VARARGS},
+    {"set_tmp_dir",     (PyCFunction)DBEnv_set_tmp_dir,      METH_VARARGS},
+    {"txn_begin",       (PyCFunction)DBEnv_txn_begin,        METH_VARARGS|METH_KEYWORDS},
+    {"txn_checkpoint",  (PyCFunction)DBEnv_txn_checkpoint,   METH_VARARGS},
+    {"txn_stat",        (PyCFunction)DBEnv_txn_stat,         METH_VARARGS},
+    {"set_tx_max",      (PyCFunction)DBEnv_set_tx_max,       METH_VARARGS},
+    {"lock_detect",     (PyCFunction)DBEnv_lock_detect,      METH_VARARGS},
+    {"lock_get",        (PyCFunction)DBEnv_lock_get,         METH_VARARGS},
+    {"lock_id",         (PyCFunction)DBEnv_lock_id,          METH_VARARGS},
+    {"lock_put",        (PyCFunction)DBEnv_lock_put,         METH_VARARGS},
+    {"lock_stat",       (PyCFunction)DBEnv_lock_stat,        METH_VARARGS},
+    {"log_archive",     (PyCFunction)DBEnv_log_archive,      METH_VARARGS},
+    {"set_get_returns_none",(PyCFunction)DBEnv_set_get_returns_none, METH_VARARGS},
+    {NULL,      NULL}       /* sentinel */
+};
+
+
+static PyMethodDef DBTxn_methods[] = {
+    {"commit",          (PyCFunction)DBTxn_commit,      METH_VARARGS},
+    {"prepare",         (PyCFunction)DBTxn_prepare,     METH_VARARGS},
+    {"abort",           (PyCFunction)DBTxn_abort,       METH_VARARGS},
+    {"id",              (PyCFunction)DBTxn_id,          METH_VARARGS},
+    {NULL,      NULL}       /* sentinel */
+};
+
+
+static PyObject*
+DB_getattr(DBObject* self, char *name)
+{
+    return Py_FindMethod(DB_methods, (PyObject* )self, name);
+}
+
+
+static PyObject*
+DBEnv_getattr(DBEnvObject* self, char *name)
+{
+    if (!strcmp(name, "db_home")) {
+        CHECK_ENV_NOT_CLOSED(self);
+        if (self->db_env->db_home == NULL) {
+            RETURN_NONE();
+        }
+        return PyString_FromString(self->db_env->db_home);
+    }
+
+    return Py_FindMethod(DBEnv_methods, (PyObject* )self, name);
+}
+
+
+static PyObject*
+DBCursor_getattr(DBCursorObject* self, char *name)
+{
+    return Py_FindMethod(DBCursor_methods, (PyObject* )self, name);
+}
+
+static PyObject*
+DBTxn_getattr(DBTxnObject* self, char *name)
+{
+    return Py_FindMethod(DBTxn_methods, (PyObject* )self, name);
+}
+
+static PyObject*
+DBLock_getattr(DBLockObject* self, char *name)
+{
+    return NULL;
+}
+
+statichere PyTypeObject DB_Type = {
+    PyObject_HEAD_INIT(NULL)
+    0,                  /*ob_size*/
+    "DB",               /*tp_name*/
+    sizeof(DBObject),   /*tp_basicsize*/
+    0,                  /*tp_itemsize*/
+    /* methods */
+    (destructor)DB_dealloc, /*tp_dealloc*/
+    0,                  /*tp_print*/
+    (getattrfunc)DB_getattr, /*tp_getattr*/
+    0,                      /*tp_setattr*/
+    0,          /*tp_compare*/
+    0,          /*tp_repr*/
+    0,          /*tp_as_number*/
+    0,          /*tp_as_sequence*/
+    &DB_mapping,/*tp_as_mapping*/
+    0,          /*tp_hash*/
+};
+
+
+statichere PyTypeObject DBCursor_Type = {
+    PyObject_HEAD_INIT(NULL)
+    0,                  /*ob_size*/
+    "DBCursor",         /*tp_name*/
+    sizeof(DBCursorObject),  /*tp_basicsize*/
+    0,                  /*tp_itemsize*/
+    /* methods */
+    (destructor)DBCursor_dealloc,/*tp_dealloc*/
+    0,                  /*tp_print*/
+    (getattrfunc)DBCursor_getattr, /*tp_getattr*/
+    0,                  /*tp_setattr*/
+    0,                  /*tp_compare*/
+    0,                  /*tp_repr*/
+    0,                  /*tp_as_number*/
+    0,                  /*tp_as_sequence*/
+    0,                  /*tp_as_mapping*/
+    0,                  /*tp_hash*/
+};
+
+
+statichere PyTypeObject DBEnv_Type = {
+    PyObject_HEAD_INIT(NULL)
+    0,          /*ob_size*/
+    "DBEnv",            /*tp_name*/
+    sizeof(DBEnvObject),    /*tp_basicsize*/
+    0,          /*tp_itemsize*/
+    /* methods */
+    (destructor)DBEnv_dealloc, /*tp_dealloc*/
+    0,          /*tp_print*/
+    (getattrfunc)DBEnv_getattr, /*tp_getattr*/
+    0,          /*tp_setattr*/
+    0,          /*tp_compare*/
+    0,          /*tp_repr*/
+    0,          /*tp_as_number*/
+    0,          /*tp_as_sequence*/
+    0,          /*tp_as_mapping*/
+    0,          /*tp_hash*/
+};
+
+statichere PyTypeObject DBTxn_Type = {
+    PyObject_HEAD_INIT(NULL)
+    0,          /*ob_size*/
+    "DBTxn",    /*tp_name*/
+    sizeof(DBTxnObject),  /*tp_basicsize*/
+    0,          /*tp_itemsize*/
+    /* methods */
+    (destructor)DBTxn_dealloc, /*tp_dealloc*/
+    0,          /*tp_print*/
+    (getattrfunc)DBTxn_getattr, /*tp_getattr*/
+    0,                      /*tp_setattr*/
+    0,          /*tp_compare*/
+    0,          /*tp_repr*/
+    0,          /*tp_as_number*/
+    0,          /*tp_as_sequence*/
+    0,          /*tp_as_mapping*/
+    0,          /*tp_hash*/
+};
+
+
+statichere PyTypeObject DBLock_Type = {
+    PyObject_HEAD_INIT(NULL)
+    0,          /*ob_size*/
+    "DBLock",   /*tp_name*/
+    sizeof(DBLockObject),  /*tp_basicsize*/
+    0,          /*tp_itemsize*/
+    /* methods */
+    (destructor)DBLock_dealloc, /*tp_dealloc*/
+    0,          /*tp_print*/
+    (getattrfunc)DBLock_getattr, /*tp_getattr*/
+    0,                      /*tp_setattr*/
+    0,          /*tp_compare*/
+    0,          /*tp_repr*/
+    0,          /*tp_as_number*/
+    0,          /*tp_as_sequence*/
+    0,          /*tp_as_mapping*/
+    0,          /*tp_hash*/
+};
+
+
+/* --------------------------------------------------------------------- */
+/* Module-level functions */
+
+static PyObject*
+DB_construct(PyObject* self, PyObject* args, PyObject* kwargs)
+{
+    PyObject* dbenvobj = NULL;
+    int flags = 0;
+    char* kwnames[] = { "dbEnv", "flags", NULL};
+
+    if (!PyArg_ParseTupleAndKeywords(args, kwargs, "|Oi:DB", kwnames, &dbenvobj, &flags))
+        return NULL;
+    if (dbenvobj == Py_None)
+        dbenvobj = NULL;
+    else if (dbenvobj && !DBEnvObject_Check(dbenvobj)) {
+        makeTypeError("DBEnv", dbenvobj);
+        return NULL;
+    }
+
+    return (PyObject* )newDBObject((DBEnvObject*)dbenvobj, flags);
+}
+
+
+static PyObject*
+DBEnv_construct(PyObject* self, PyObject* args)
+{
+    int flags = 0;
+    if (!PyArg_ParseTuple(args, "|i:DbEnv", &flags)) return NULL;
+    return (PyObject* )newDBEnvObject(flags);
+}
+
+
+static char bsddb_version_doc[] =
+"Returns a tuple of major, minor, and patch release numbers of the\n\
+underlying DB library.";
+
+static PyObject*
+bsddb_version(PyObject* self, PyObject* args)
+{
+    int major, minor, patch;
+
+        if (!PyArg_ParseTuple(args, ":version"))
+        return NULL;
+        db_version(&major, &minor, &patch);
+        return Py_BuildValue("(iii)", major, minor, patch);
+}
+
+
+/* List of functions defined in the module */
+
+static PyMethodDef bsddb_methods[] = {
+    {"DB",      (PyCFunction)DB_construct,      METH_VARARGS | METH_KEYWORDS },
+    {"DBEnv",   (PyCFunction)DBEnv_construct,   METH_VARARGS},
+    {"version", (PyCFunction)bsddb_version,     METH_VARARGS, bsddb_version_doc},
+    {NULL,      NULL}       /* sentinel */
+};
+
+
+/* --------------------------------------------------------------------- */
+/* Module initialization */
+
+
+/* Convenience routine to export an integer value.
+ * Errors are silently ignored, for better or for worse...
+ */
+#define ADD_INT(dict, NAME)         _addIntToDict(dict, #NAME, NAME)
+
+
+
+DL_EXPORT(void) init_bsddb(void)
+{
+    PyObject* m;
+    PyObject* d;
+    PyObject* pybsddb_version_s = PyString_FromString( PY_BSDDB_VERSION );
+    PyObject* db_version_s = PyString_FromString( DB_VERSION_STRING );
+    PyObject* cvsid_s = PyString_FromString( rcs_id );
+
+    /* Initialize the type of the new type objects here; doing it here
+       is required for portability to Windows without requiring C++. */
+    DB_Type.ob_type = &PyType_Type;
+    DBCursor_Type.ob_type = &PyType_Type;
+    DBEnv_Type.ob_type = &PyType_Type;
+    DBTxn_Type.ob_type = &PyType_Type;
+    DBLock_Type.ob_type = &PyType_Type;
+
+
+#ifdef WITH_THREAD
+    /* Save the current interpreter, so callbacks can do the right thing. */
+    _db_interpreterState = PyThreadState_Get()->interp;
+#endif
+
+    /* Create the module and add the functions */
+    m = Py_InitModule("_bsddb", bsddb_methods);
+
+    /* Add some symbolic constants to the module */
+    d = PyModule_GetDict(m);
+    PyDict_SetItemString(d, "__version__", pybsddb_version_s);
+    PyDict_SetItemString(d, "cvsid", cvsid_s);
+    PyDict_SetItemString(d, "DB_VERSION_STRING", db_version_s);
+    Py_DECREF(pybsddb_version_s);
+    pybsddb_version_s = NULL;
+    Py_DECREF(cvsid_s);
+    cvsid_s = NULL;
+    Py_DECREF(db_version_s);
+    db_version_s = NULL;
+
+    ADD_INT(d, DB_VERSION_MAJOR);
+    ADD_INT(d, DB_VERSION_MINOR);
+    ADD_INT(d, DB_VERSION_PATCH);
+
+    ADD_INT(d, DB_MAX_PAGES);
+    ADD_INT(d, DB_MAX_RECORDS);
+
+    ADD_INT(d, DB_CLIENT);
+    ADD_INT(d, DB_XA_CREATE);
+
+    ADD_INT(d, DB_CREATE);
+    ADD_INT(d, DB_NOMMAP);
+    ADD_INT(d, DB_THREAD);
+
+    ADD_INT(d, DB_FORCE);
+    ADD_INT(d, DB_INIT_CDB);
+    ADD_INT(d, DB_INIT_LOCK);
+    ADD_INT(d, DB_INIT_LOG);
+    ADD_INT(d, DB_INIT_MPOOL);
+    ADD_INT(d, DB_INIT_TXN);
+#if (DBVER >= 32)
+    ADD_INT(d, DB_JOINENV);
+#endif
+
+    ADD_INT(d, DB_RECOVER);
+    ADD_INT(d, DB_RECOVER_FATAL);
+    ADD_INT(d, DB_TXN_NOSYNC);
+    ADD_INT(d, DB_USE_ENVIRON);
+    ADD_INT(d, DB_USE_ENVIRON_ROOT);
+
+    ADD_INT(d, DB_LOCKDOWN);
+    ADD_INT(d, DB_PRIVATE);
+    ADD_INT(d, DB_SYSTEM_MEM);
+
+    ADD_INT(d, DB_TXN_SYNC);
+    ADD_INT(d, DB_TXN_NOWAIT);
+
+    ADD_INT(d, DB_EXCL);
+    ADD_INT(d, DB_FCNTL_LOCKING);
+    ADD_INT(d, DB_ODDFILESIZE);
+    ADD_INT(d, DB_RDWRMASTER);
+    ADD_INT(d, DB_RDONLY);
+    ADD_INT(d, DB_TRUNCATE);
+#if (DBVER >= 32)
+    ADD_INT(d, DB_EXTENT);
+    ADD_INT(d, DB_CDB_ALLDB);
+    ADD_INT(d, DB_VERIFY);
+#endif
+    ADD_INT(d, DB_UPGRADE);
+
+    ADD_INT(d, DB_AGGRESSIVE);
+    ADD_INT(d, DB_NOORDERCHK);
+    ADD_INT(d, DB_ORDERCHKONLY);
+    ADD_INT(d, DB_PR_PAGE);
+#if ! (DBVER >= 33)
+    ADD_INT(d, DB_VRFY_FLAGMASK);
+    ADD_INT(d, DB_PR_HEADERS);
+#endif
+    ADD_INT(d, DB_PR_RECOVERYTEST);
+    ADD_INT(d, DB_SALVAGE);
+
+    ADD_INT(d, DB_LOCK_NORUN);
+    ADD_INT(d, DB_LOCK_DEFAULT);
+    ADD_INT(d, DB_LOCK_OLDEST);
+    ADD_INT(d, DB_LOCK_RANDOM);
+    ADD_INT(d, DB_LOCK_YOUNGEST);
+#if (DBVER >= 33)
+    ADD_INT(d, DB_LOCK_MAXLOCKS);
+    ADD_INT(d, DB_LOCK_MINLOCKS);
+    ADD_INT(d, DB_LOCK_MINWRITE);
+#endif
+
+
+#if (DBVER >= 33)
+    _addIntToDict(d, "DB_LOCK_CONFLICT", 0);   /* docs say to use zero instead */
+#else
+    ADD_INT(d, DB_LOCK_CONFLICT);
+#endif
+
+    ADD_INT(d, DB_LOCK_DUMP);
+    ADD_INT(d, DB_LOCK_GET);
+    ADD_INT(d, DB_LOCK_INHERIT);
+    ADD_INT(d, DB_LOCK_PUT);
+    ADD_INT(d, DB_LOCK_PUT_ALL);
+    ADD_INT(d, DB_LOCK_PUT_OBJ);
+
+    ADD_INT(d, DB_LOCK_NG);
+    ADD_INT(d, DB_LOCK_READ);
+    ADD_INT(d, DB_LOCK_WRITE);
+    ADD_INT(d, DB_LOCK_NOWAIT);
+#if (DBVER >= 32)
+    ADD_INT(d, DB_LOCK_WAIT);
+#endif
+    ADD_INT(d, DB_LOCK_IWRITE);
+    ADD_INT(d, DB_LOCK_IREAD);
+    ADD_INT(d, DB_LOCK_IWR);
+#if (DBVER >= 33)
+    ADD_INT(d, DB_LOCK_DIRTY);
+    ADD_INT(d, DB_LOCK_WWRITE);
+#endif
+
+    ADD_INT(d, DB_LOCK_RECORD);
+    ADD_INT(d, DB_LOCK_UPGRADE);
+#if (DBVER >= 32)
+    ADD_INT(d, DB_LOCK_SWITCH);
+#endif
+#if (DBVER >= 33)
+    ADD_INT(d, DB_LOCK_UPGRADE_WRITE);
+#endif
+
+    ADD_INT(d, DB_LOCK_NOWAIT);
+    ADD_INT(d, DB_LOCK_RECORD);
+    ADD_INT(d, DB_LOCK_UPGRADE);
+
+#if (DBVER >= 33)
+    ADD_INT(d, DB_LSTAT_ABORTED);
+    ADD_INT(d, DB_LSTAT_ERR);
+    ADD_INT(d, DB_LSTAT_FREE);
+    ADD_INT(d, DB_LSTAT_HELD);
+#if (DBVER == 33)
+    ADD_INT(d, DB_LSTAT_NOGRANT);
+#endif
+    ADD_INT(d, DB_LSTAT_PENDING);
+    ADD_INT(d, DB_LSTAT_WAITING);
+#endif
+
+    ADD_INT(d, DB_ARCH_ABS);
+    ADD_INT(d, DB_ARCH_DATA);
+    ADD_INT(d, DB_ARCH_LOG);
+
+    ADD_INT(d, DB_BTREE);
+    ADD_INT(d, DB_HASH);
+    ADD_INT(d, DB_RECNO);
+    ADD_INT(d, DB_QUEUE);
+    ADD_INT(d, DB_UNKNOWN);
+
+    ADD_INT(d, DB_DUP);
+    ADD_INT(d, DB_DUPSORT);
+    ADD_INT(d, DB_RECNUM);
+    ADD_INT(d, DB_RENUMBER);
+    ADD_INT(d, DB_REVSPLITOFF);
+    ADD_INT(d, DB_SNAPSHOT);
+
+    ADD_INT(d, DB_JOIN_NOSORT);
+
+    ADD_INT(d, DB_AFTER);
+    ADD_INT(d, DB_APPEND);
+    ADD_INT(d, DB_BEFORE);
+    ADD_INT(d, DB_CACHED_COUNTS);
+    ADD_INT(d, DB_CHECKPOINT);
+#if (DBVER >= 33)
+    ADD_INT(d, DB_COMMIT);
+#endif
+    ADD_INT(d, DB_CONSUME);
+#if (DBVER >= 32)
+    ADD_INT(d, DB_CONSUME_WAIT);
+#endif
+    ADD_INT(d, DB_CURLSN);
+    ADD_INT(d, DB_CURRENT);
+#if (DBVER >= 33)
+    ADD_INT(d, DB_FAST_STAT);
+#endif
+    ADD_INT(d, DB_FIRST);
+    ADD_INT(d, DB_FLUSH);
+    ADD_INT(d, DB_GET_BOTH);
+    ADD_INT(d, DB_GET_RECNO);
+    ADD_INT(d, DB_JOIN_ITEM);
+    ADD_INT(d, DB_KEYFIRST);
+    ADD_INT(d, DB_KEYLAST);
+    ADD_INT(d, DB_LAST);
+    ADD_INT(d, DB_NEXT);
+    ADD_INT(d, DB_NEXT_DUP);
+    ADD_INT(d, DB_NEXT_NODUP);
+    ADD_INT(d, DB_NODUPDATA);
+    ADD_INT(d, DB_NOOVERWRITE);
+    ADD_INT(d, DB_NOSYNC);
+    ADD_INT(d, DB_POSITION);
+    ADD_INT(d, DB_PREV);
+    ADD_INT(d, DB_PREV_NODUP);
+    ADD_INT(d, DB_RECORDCOUNT);
+    ADD_INT(d, DB_SET);
+    ADD_INT(d, DB_SET_RANGE);
+    ADD_INT(d, DB_SET_RECNO);
+    ADD_INT(d, DB_WRITECURSOR);
+
+    ADD_INT(d, DB_OPFLAGS_MASK);
+    ADD_INT(d, DB_RMW);
+#if (DBVER >= 33)
+    ADD_INT(d, DB_DIRTY_READ);
+    ADD_INT(d, DB_MULTIPLE);
+    ADD_INT(d, DB_MULTIPLE_KEY);
+#endif
+
+#if (DBVER >= 33)
+    ADD_INT(d, DB_DONOTINDEX);
+#endif
+
+    ADD_INT(d, DB_INCOMPLETE);
+    ADD_INT(d, DB_KEYEMPTY);
+    ADD_INT(d, DB_KEYEXIST);
+    ADD_INT(d, DB_LOCK_DEADLOCK);
+    ADD_INT(d, DB_LOCK_NOTGRANTED);
+    ADD_INT(d, DB_NOSERVER);
+    ADD_INT(d, DB_NOSERVER_HOME);
+    ADD_INT(d, DB_NOSERVER_ID);
+    ADD_INT(d, DB_NOTFOUND);
+    ADD_INT(d, DB_OLD_VERSION);
+    ADD_INT(d, DB_RUNRECOVERY);
+    ADD_INT(d, DB_VERIFY_BAD);
+#if (DBVER >= 33)
+    ADD_INT(d, DB_PAGE_NOTFOUND);
+    ADD_INT(d, DB_SECONDARY_BAD);
+#endif
+#if (DBVER >= 40)
+    ADD_INT(d, DB_STAT_CLEAR);
+    ADD_INT(d, DB_REGION_INIT);
+    ADD_INT(d, DB_NOLOCKING);
+    ADD_INT(d, DB_YIELDCPU);
+    ADD_INT(d, DB_PANIC_ENVIRONMENT);
+    ADD_INT(d, DB_NOPANIC);
+#endif
+
+    ADD_INT(d, EINVAL);
+    ADD_INT(d, EACCES);
+    ADD_INT(d, ENOSPC);
+    ADD_INT(d, ENOMEM);
+    ADD_INT(d, EAGAIN);
+    ADD_INT(d, EBUSY);
+    ADD_INT(d, EEXIST);
+    ADD_INT(d, ENOENT);
+    ADD_INT(d, EPERM);
+
+
+
+    /* The base exception class is DBError */
+    DBError = PyErr_NewException("bsddb3._db.DBError", NULL, NULL);
+    PyDict_SetItemString(d, "DBError", DBError);
+
+    /* Some magic to make DBNotFoundError derive from both DBError and
+       KeyError, since the API only supports using one base class. */
+    PyDict_SetItemString(d, "KeyError", PyExc_KeyError);
+    PyRun_String("class DBNotFoundError(DBError, KeyError): pass",
+                 Py_file_input, d, d);
+    DBNotFoundError = PyDict_GetItemString(d, "DBNotFoundError");
+    PyDict_DelItemString(d, "KeyError");
+
+
+    /* All the rest of the exceptions derive only from DBError */
+#define MAKE_EX(name)   name = PyErr_NewException("bsddb3._db." #name, DBError, NULL); \
+                        PyDict_SetItemString(d, #name, name)
+
+#if !INCOMPLETE_IS_WARNING
+    MAKE_EX(DBIncompleteError);
+#endif
+    MAKE_EX(DBKeyEmptyError);
+    MAKE_EX(DBKeyExistError);
+    MAKE_EX(DBLockDeadlockError);
+    MAKE_EX(DBLockNotGrantedError);
+    MAKE_EX(DBOldVersionError);
+    MAKE_EX(DBRunRecoveryError);
+    MAKE_EX(DBVerifyBadError);
+    MAKE_EX(DBNoServerError);
+    MAKE_EX(DBNoServerHomeError);
+    MAKE_EX(DBNoServerIDError);
+#if (DBVER >= 33)
+    MAKE_EX(DBPageNotFoundError);
+    MAKE_EX(DBSecondaryBadError);
+#endif
+
+    MAKE_EX(DBInvalidArgError);
+    MAKE_EX(DBAccessError);
+    MAKE_EX(DBNoSpaceError);
+    MAKE_EX(DBNoMemoryError);
+    MAKE_EX(DBAgainError);
+    MAKE_EX(DBBusyError);
+    MAKE_EX(DBFileExistsError);
+    MAKE_EX(DBNoSuchFileError);
+    MAKE_EX(DBPermissionsError);
+
+#undef MAKE_EX
+
+    /* Check for errors */
+    if (PyErr_Occurred()) {
+        PyErr_Print();
+        Py_FatalError("can't initialize module _db");
+    }
+}
+
+
+
diff --git a/Modules/bsddbmodule.c b/Modules/bsddbmodule.c
index 918a0fc..1319bf9 100644
--- a/Modules/bsddbmodule.c
+++ b/Modules/bsddbmodule.c
@@ -842,11 +842,11 @@ static PyMethodDef bsddbmodule_methods[] = {
 };
 
 PyMODINIT_FUNC
-initbsddb(void) {
+initbsddb185(void) {
 	PyObject *m, *d;
 
 	Bsddbtype.ob_type = &PyType_Type;
-	m = Py_InitModule("bsddb", bsddbmodule_methods);
+	m = Py_InitModule("bsddb185", bsddbmodule_methods);
 	d = PyModule_GetDict(m);
 	BsddbError = PyErr_NewException("bsddb.error", NULL, NULL);
 	if (BsddbError != NULL)
diff --git a/setup.py b/setup.py
index 8c7563a..c94df0b 100644
--- a/setup.py
+++ b/setup.py
@@ -437,8 +437,7 @@ class PyBuildExt(build_ext):
         # Berkeley DB 3.x.)
 
         # when sorted in reverse order, keys for this dict must appear in the
-        # order you wish to search - e.g., search for db3 before db2, db2
-        # before db1
+        # order you wish to search - e.g., search for db4 before db3
         db_try_this = {
             'db4': {'libs': ('db-4.3', 'db-4.2', 'db-4.1', 'db-4.0'),
                     'libdirs': ('/usr/local/BerkeleyDB.4.3/lib',
@@ -460,7 +459,7 @@ class PyBuildExt(build_ext):
                                 '/sw/include/db4',
                                 '/usr/include/db4',
                                 ),
-                    'incs': ('db_185.h',)},
+                    'incs': ('db.h',)},
             'db3': {'libs': ('db-3.3', 'db-3.2', 'db-3.1', 'db-3.0'),
                     'libdirs': ('/usr/local/BerkeleyDB.3.3/lib',
                                 '/usr/local/BerkeleyDB.3.2/lib',
@@ -481,35 +480,9 @@ class PyBuildExt(build_ext):
                                 '/sw/include/db3',
                                 '/usr/include/db3',
                                 ),
-                    'incs': ('db_185.h',)},
-            'db2': {'libs': ('db2',),
-                    'libdirs': ('/usr/local/lib',
-                                '/sw/lib',
-                                '/usr/lib',
-                                '/lib'),
-                    'incdirs': ('/usr/local/include/db2',
-                                '/sw/include/db2',
-                                '/usr/include/db2'),
-                    'incs': ('db_185.h',)},
-            # if you are willing to risk hash db file corruption you can
-            # uncomment the lines below for db1.  Note that this will affect
-            # not only the bsddb module, but the dbhash and anydbm modules
-            # as well.  YOU HAVE BEEN WARNED!!!
-            ##'db1': {'libs': ('db1', 'db'),
-            ##        'libdirs': ('/usr/local/lib',
-            ##                    '/sw/lib',
-            ##                    '/usr/lib',
-            ##                    '/lib'),
-            ##        'incdirs': ('/usr/local/include/db1',
-            ##                    '/usr/local/include',
-            ##                    '/usr/include/db1',
-            ##                    '/usr/include'),
-            ##        'incs': ('db.h',)},
+                    'incs': ('db.h',)},
             }
 
-        # override this list to affect the library version search order
-        # for example, if you want to force version 2 to be used:
-        #   db_search_order = ["db2"]
         db_search_order = db_try_this.keys()
         db_search_order.sort()
         db_search_order.reverse()
@@ -537,19 +510,11 @@ class PyBuildExt(build_ext):
             # is usually correct and most trouble free, but may cause problems
             # in some unusual system configurations (e.g. the directory is on
             # an NFS server that goes away).
-            if dbinc == 'db_185.h':
-                exts.append(Extension('bsddb', ['bsddbmodule.c'],
-                                      library_dirs=[dblib_dir],
-                                      runtime_library_dirs=[dblib_dir],
-                                      include_dirs=db_incs,
-                                      define_macros=[('HAVE_DB_185_H',1)],
-                                      libraries=dblibs))
-            else:
-                exts.append(Extension('bsddb', ['bsddbmodule.c'],
-                                      library_dirs=[dblib_dir],
-                                      runtime_library_dirs=[dblib_dir],
-                                      include_dirs=db_incs,
-                                      libraries=dblibs))
+            exts.append(Extension('_bsddb', ['_bsddb.c'],
+                                  library_dirs=[dblib_dir],
+                                  runtime_library_dirs=[dblib_dir],
+                                  include_dirs=db_incs,
+                                  libraries=dblibs))
         else:
             db_incs = None
             dblibs = []