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-rw-r--r--Doc/whatsnew/2.6.rst51
1 files changed, 50 insertions, 1 deletions
diff --git a/Doc/whatsnew/2.6.rst b/Doc/whatsnew/2.6.rst
index a5d681c..a2ce08a 100644
--- a/Doc/whatsnew/2.6.rst
+++ b/Doc/whatsnew/2.6.rst
@@ -515,6 +515,12 @@ fixes. Here's a partial list of the most notable changes, sorted alphabetically
by module name. Consult the :file:`Misc/NEWS` file in the source tree for a more
complete list of changes, or look through the CVS logs for all the details.
+* The :mod:`bsddb.dbshelve` module now uses the highest pickling protocol
+ available, instead of restricting itself to protocol 1.
+ (Contributed by W. Barnes.)
+
+ .. % Patch 1551443
+
* A new data type in the :mod:`collections` module: :class:`named_tuple(typename,
fieldnames)` is a factory function that creates subclasses of the standard tuple
whose fields are accessible by name as well as index. For example::
@@ -531,17 +537,48 @@ complete list of changes, or look through the CVS logs for all the details.
1 1
>>> print var[2], var.type # Equivalent
int int
+ >>> var.__asdict__()
+ {'size': 4, 'type': 'int', 'id': 1, 'name': 'frequency'}
>>> v2 = var.__replace__('name', 'amplitude')
>>> v2
variable(id=1, name='amplitude', type='int', size=4)
(Contributed by Raymond Hettinger.)
+* Another change to the :mod:`collections` module is that the
+ :class:`deque` type now supports an optional `maxlen` parameter;
+ if supplied, the deque's size will be restricted to no more
+ than ``maxlen`` items. Adding more items to a full deque causes
+ old items to be discarded.
+
+ ::
+
+ >>> from collections import deque
+ >>> dq=deque(maxlen=3)
+ >>> dq
+ deque([], maxlen=3)
+ >>> dq.append(1) ; dq.append(2) ; dq.append(3)
+ >>> dq
+ deque([1, 2, 3], maxlen=3)
+ >>> dq.append(4)
+ >>> dq
+ deque([2, 3, 4], maxlen=3)
+
+ (Contributed by Raymond Hettinger.)
+
* The :mod:`ctypes` module now supports a :class:`c_bool` datatype
that represents the C99 ``bool`` type. (Contributed by David Remahl.)
.. % Patch 1649190
+ The :mod:`ctypes` string, buffer and array types also have improved
+ support for extended slicing syntax,
+ where various combinations of ``(start, stop, step)`` are supplied.
+ (Implemented by Thomas Wouters.)
+
+ .. % Revision 57769
+
+
* A new method in the :mod:`curses` module: for a window, :meth:`chgat` changes
the display characters for a certain number of characters on a single line.
::
@@ -626,6 +663,12 @@ complete list of changes, or look through the CVS logs for all the details.
.. % Patch 1273829
+* The ``os.environ`` object's :meth:`clear` method will now unset the
+ environment variables using :func:`os.unsetenv` in addition to clearing
+ the object's keys. (Contributed by XXX.)
+
+ .. % Patch #1181
+
* In the :mod:`os.path` module, the :func:`splitext` function
has been changed to not split on leading period characters.
This produces better results when operating on Unix's dot-files.
@@ -799,7 +842,13 @@ Build and C API Changes
Changes to Python's build process and to the C API include:
-* Detailed changes will be listed here.
+* The BerkeleyDB module now has a C API object, available as
+ ``bsddb.db.api``. This object can be used by other C extensions
+ that wish to use the :mod:`bsddb` module for their own purposes.
+ (Contributed by Duncan Grisby.)
+
+ .. % Patch 1551895
+
.. % ======================================================================