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Building Python using VC++ 6.0 or 5.0
-------------------------------------
This directory is used to build Python for Win32 platforms, e.g. Windows
2000 and XP. It requires Microsoft Visual C++ 6.x or 5.x and Platform
SDK February 2003 Edition (Core SDK).
(For other Windows platforms and compilers, see ../readme.txt.)
All you need to do is open the workspace "pcbuild.dsw" in MSVC++, select
the Debug or Release setting (using Build -> Set Active Configuration...),
and build the projects.
The proper order to build subprojects:
1) pythoncore (this builds the main Python DLL and library files,
python27.{dll, lib} in Release mode)
2) python (this builds the main Python executable,
python.exe in Release mode)
3) the other subprojects, as desired or needed (note: you probably don't
want to build most of the other subprojects, unless you're building an
entire Python distribution from scratch, or specifically making changes
to the subsystems they implement; see SUBPROJECTS below)
When using the Debug setting, the output files have a _d added to
their name: python27_d.dll, python_d.exe, pyexpat_d.pyd, and so on.
SUBPROJECTS
-----------
These subprojects should build out of the box. Subprojects other than the
main ones (pythoncore, python, pythonw) generally build a DLL (renamed to
.pyd) from a specific module so that users don't have to load the code
supporting that module unless they import the module.
pythoncore
.dll and .lib
python
.exe
pythonw
pythonw.exe, a variant of python.exe that doesn't pop up a DOS box
_msi
_msi.c. You need to install Windows Installer SDK to build this module.
_socket
socketmodule.c
_testcapi
tests of the Python C API, run via Lib/test/test_capi.py, and
implemented by module Modules/_testcapimodule.c
pyexpat
Python wrapper for accelerated XML parsing, which incorporates stable
code from the Expat project: http://sourceforge.net/projects/expat/
select
selectmodule.c
unicodedata
large tables of Unicode data
winsound
play sounds (typically .wav files) under Windows
The following subprojects will generally NOT build out of the box. They
wrap code Python doesn't control, and you'll need to download the base
packages first and unpack them into siblings of PCbuilds's parent
directory; for example, if your PCbuild is .......\dist\src\PCbuild\,
unpack into new subdirectories of dist\.
_tkinter
Python wrapper for the Tk windowing system. Requires building
Tcl/Tk first. Following are instructions for Tcl/Tk 8.5.2.
Get source
----------
In the dist directory, run
svn export http://svn.python.org/projects/external/tcl-8.5.2.1 tcl8.5.2
svn export http://svn.python.org/projects/external/tk-8.5.2.0 tk8.5.2
svn export http://svn.python.org/projects/external/tix-8.4.3.1 tix8.4.3
Debug Build
-----------
To build debug version, add DEBUG=1 to all nmake call bellow.
Build Tcl first (done here w/ MSVC 6 on Win2K)
---------------
If your environment doesn't have struct _stat64, you need to apply
tcl852.patch in this directory to dist\tcl8.5.2\generic\tcl.h.
cd dist\tcl8.5.2\win
run vcvars32.bat
nmake -f makefile.vc
nmake -f makefile.vc INSTALLDIR=..\..\tcltk install
XXX Should we compile with OPTS=threads?
Optional: run tests, via
nmake -f makefile.vc test
all.tcl: Total 24242 Passed 23358 Skipped 877 Failed 7
Sourced 137 Test Files.
Files with failing tests: exec.test http.test io.test main.test string.test stri
ngObj.test
Build Tk
--------
cd dist\tk8.5.2\win
nmake -f makefile.vc TCLDIR=..\..\tcl8.5.2
nmake -f makefile.vc TCLDIR=..\..\tcl8.5.2 INSTALLDIR=..\..\tcltk install
XXX Should we compile with OPTS=threads?
XXX I have no idea whether "nmake -f makefile.vc test" passed or
XXX failed. It popped up tons of little windows, and did lots of
XXX stuff, and nothing blew up.
Build Tix
---------
cd dist\tix8.4.3\win
nmake -f python.mak TCL_MAJOR=8 TCL_MINOR=5 TCL_PATCH=2 MACHINE=IX86 DEBUG=0
nmake -f python.mak TCL_MAJOR=8 TCL_MINOR=5 TCL_PATCH=2 MACHINE=IX86 DEBUG=0 INSTALL_DIR=..\..\tcltk install
bz2
Python wrapper for the libbz2 compression library. Homepage
http://www.bzip.org/
Download the source from the python.org copy into the dist
directory:
svn export http://svn.python.org/projects/external/bzip2-1.0.6
And requires building bz2 first.
cd dist\bzip2-1.0.6
nmake -f makefile.msc
All of this managed to build bzip2-1.0.6\libbz2.lib, which the Python
project links in.
_bsddb
To use the version of bsddb that Python is built with by default, invoke
(in the dist directory)
svn export http://svn.python.org/projects/external/db-4.7.25.0 db-4.7.25
Then open db-4.7.25\build_windows\Berkeley_DB.dsw and build the
"db_static" project for "Release" mode.
Alternatively, if you want to start with the original sources,
go to Oracle's download page:
http://www.oracle.com/technology/software/products/berkeley-db/db/
and download version 4.7.25.
With or without strong cryptography? You can choose either with or
without strong cryptography, as per the instructions below. By
default, Python is built and distributed WITHOUT strong crypto.
Unpack the sources; if you downloaded the non-crypto version, rename
the directory from db-4.7.25.NC to db-4.7.25.
Now apply any patches that apply to your version.
To run extensive tests, pass "-u bsddb" to regrtest.py. test_bsddb3.py
is then enabled. Running in verbose mode may be helpful.
XXX The test_bsddb3 tests don't always pass, on Windows (according to
XXX me) or on Linux (according to Barry). (I had much better luck
XXX on Win2K than on Win98SE.) The common failure mode across platforms
XXX is
XXX DBAgainError: (11, 'Resource temporarily unavailable -- unable
XXX to join the environment')
XXX
XXX and it appears timing-dependent. On Win2K I also saw this once:
XXX
XXX test02_SimpleLocks (bsddb.test.test_thread.HashSimpleThreaded) ...
XXX Exception in thread reader 1:
XXX Traceback (most recent call last):
XXX File "C:\Code\python\lib\threading.py", line 411, in __bootstrap
XXX self.run()
XXX File "C:\Code\python\lib\threading.py", line 399, in run
XXX apply(self.__target, self.__args, self.__kwargs)
XXX File "C:\Code\python\lib\bsddb\test\test_thread.py", line 268, in
XXX readerThread
XXX rec = c.next()
XXX DBLockDeadlockError: (-30996, 'DB_LOCK_DEADLOCK: Locker killed
XXX to resolve a deadlock')
XXX
XXX I'm told that DBLockDeadlockError is expected at times. It
XXX doesn't cause a test to fail when it happens (exceptions in
XXX threads are invisible to unittest).
_sqlite3
Python wrapper for SQLite library.
Get the source code through
svn export http://svn.python.org/projects/external/sqlite-source-3.3.4
To use the extension module in a Python build tree, copy sqlite3.dll into
the PC/VC6 folder.
_ssl
Python wrapper for the secure sockets library.
Get the latest source code for OpenSSL from
http://www.openssl.org
You (probably) don't want the "engine" code. For example, don't get
openssl-engine-0.9.6g.tar.gz
Unpack into the "dist" directory, retaining the folder name from
the archive - for example, the latest stable OpenSSL will install as
dist/openssl-1.0.0a
You can (theoretically) use any version of OpenSSL you like - the
build process will automatically select the latest version.
You can install the NASM assembler from
http://www.nasm.us/
for x86 builds. Put nasmw.exe anywhere in your PATH.
Note: recent releases of nasm only have nasm.exe. Just rename it to
nasmw.exe.
You can also install ActivePerl from
http://www.activestate.com/activeperl/
if you like to use the official sources instead of the files from
python's subversion repository. The svn version contains pre-build
makefiles and assembly files.
The MSVC project simply invokes PC/VC6/build_ssl.py to perform
the build. This Python script locates and builds your OpenSSL
installation, then invokes a simple makefile to build the final .pyd.
build_ssl.py attempts to catch the most common errors (such as not
being able to find OpenSSL sources, or not being able to find a Perl
that works with OpenSSL) and give a reasonable error message.
If you have a problem that doesn't seem to be handled correctly
(eg, you know you have ActivePerl but we can't find it), please take
a peek at build_ssl.py and suggest patches. Note that build_ssl.py
should be able to be run directly from the command-line.
build_ssl.py/MSVC isn't clever enough to clean OpenSSL - you must do
this by hand.
YOUR OWN EXTENSION DLLs
-----------------------
If you want to create your own extension module DLL, there's an example
with easy-to-follow instructions in ../PC/example/; read the file
readme.txt there first.
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