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== Testing Python ==


How to build Python 2.7.5 using Visual Studio 2012 Express on Windows 8 64-bit

My goal with these instructions is to produce a DEBUG build on x86_64 (AMD64 or x64). I'm working on a Python extension that is currently crashing on Windows, but work fine in Linux. I will be building debug version of Numpy and Matplotlib after the DEBUG version of Python is created with these instructions.

Shameless Plug: I'm the author of the C++ & Python module Nsound


Many thanks to sebastien.sable for their page VS2010, which I followed to create these instructions.

Prepare Environment

1. Create a directory to store the Python source tree and dependencies, I called mine python_build.

2. Download Python 2.7.5 source from python.org and unzip it to python_build

3. Download and install an SVN command-line client (Try SlickSVN)

4. Download and install Perl64

5. Download and install Visual Studio Express 2012

Test Environment

1. Open a shell

2. Bring in the msvc compiler environment for x64 by doing:

  • call "C:\Program Files (x86)\Microsoft Visual Studio 11.0\VC\vcvarsall.bat" x86_amd64
    Verify by typing 'cl.exe':
    Microsoft (R) C/C++ Optimizing Compiler Version 17.00.60610.1 for x64

3. Try running the svn client: 'svn --version':

  • svn, version 1.8.3-SlikSvn-1.8.3-X64 (SlikSvn/1.8.3) X64
       compiled Sep  4 2013, 16:04:02 on x86_64/x86-microsoft-windows6.1.7601
    Copyright (C) 2013 The Apache Software Foundation.

4. Try running perl: 'perl --version'

  • This is perl 5, version 16, subversion 3 (v5.16.3) built for MSWin32-x64-multi-thread

Download dependencies

Use the buildbot tools to grab the external dependencies:

  • cd Python2.7.5

Patch External Dependencies


  • diff -r -Z -U 2 tcl- /home/Nick/development/debug/tcl-
    --- tcl-   2008-06-12 09:01:20.765751000 -0700
    +++ /home/Nick/development/debug/tcl-      2013-10-05 09:09:22.967569100 -0700
    @@ -345,5 +345,5 @@
     #if defined(EPFNOSUPPORT) && (!defined(ENOLCK) || (ENOLCK != EPFNOSUPPORT))
    -    case EPFNOSUPPORT: return "EPFNOSUPPORT";
    +    // case EPFNOSUPPORT: return "EPFNOSUPPORT";
     #ifdef EPIPE
    @@ -405,5 +405,5 @@
     #ifdef ESPIPE
    @@ -793,5 +793,5 @@
     #if defined(EPFNOSUPPORT) && (!defined(ENOLCK) || (ENOLCK != EPFNOSUPPORT))
    -    case EPFNOSUPPORT: return "protocol family not supported";
    +    // case EPFNOSUPPORT: return "protocol family not supported";
     #ifdef EPIPE
    @@ -853,5 +853,5 @@
    -    case ESOCKTNOSUPPORT: return "socket type not supported";
    +    // case ESOCKTNOSUPPORT: return "socket type not supported";
     #ifdef ESPIPE
    diff -r -Z -U 2 tcl- /home/Nick/development/debug/tcl-
    --- tcl- 2008-06-12 09:01:20.765751000 -0700
    +++ /home/Nick/development/debug/tcl-    2013-10-05 09:10:03.859581600 -0700
    @@ -449,5 +449,5 @@
     !if $(DEBUG)
    -ldebug = -debug:full -debugtype:cv
    +ldebug = -debugtype:cv
     ldebug = -release -opt:ref -opt:icf,3


  • diff -r -Z -U 2 tk- /home/Nick/development/debug/tk-
    --- tk-  2008-06-12 09:01:54.000047000 -0700
    +++ /home/Nick/development/debug/tk-     2013-10-05 09:10:27.667979000 -0700
    @@ -473,5 +473,5 @@
     !if $(DEBUG)
    -ldebug = -debug:full -debugtype:cv
    +ldebug = -debugtype:cv
     ldebug = -release -opt:ref -opt:icf,3

Compile External Dependencies

  • cd Python2.7.5

Manually Build Openssl 1.0.1e

1. Download and unzip openssl-1.0.1e.tar.gz

2. Configure openssl:

  • cd openssl-1.0.1e
    perl Configure --openssldir=%CD%\ enable-camellia disable-idea VC-WIN64A

3. IMPORTANT, I guess perl creates "symobolic" links inside the include directory which the openssl build environment understands. However Visual Studio doesn't understand them:

  • Example Visual Studio Error message:
  • C:\Users\Nick\Downloads\python_build\openssl-1.0.1e\include\openssl/evp.h(1): error C2059: syntax error : '!'
    To correct the problem, copy the headers over their symbolic links. I used a BASH shell in Cygwin to do this:
  • cd openssl-1.0.1e/include/openssl
    for f in *.h; do cp $f $f.nick; mv $f.nick $f; done

    If you don't have Cygwin installed, just unzip this file into openssl-1.0.1e\include\openssl openssl-headers-1.0.1e.zip

4. Build with these commands:

  • ms\do_win64a.bat
    nmake -f ms\ntdll.mak

Convert Visual Studio 2008 Solution

1. Open Python-2.7.5\PCbuild\pcbuild.sln with Visual Studio 2012 Express

2. Click OK to perform the "One-Way" upgrade on all the project files.

3. Immediately close Visual Studio 2012 Express

Patch Project Files

See this diff file: PCbuild_patches.txt

I've also just zipped up the project files so you can just unzip them into PCbuild: python-2.7.5-amd64-pcbuild.zip

Build Python

1. Patch Python prevent manifest files from being embedded:

  • diff -r -Z -U 2 Python-2.7.5/Lib/distutils/msvc9compiler.py /cygdrive/c/Python27_d/Lib/distutils/msvc9compiler.py
    --- Python-2.7.5/Lib/distutils/msvc9compiler.py 2013-05-11 20:32:42.000000000 -0700
    +++ /cygdrive/c/Python27_d/Lib/distutils/msvc9compiler.py       2013-10-05 17:48:17.906895400 -0700
    @@ -659,5 +659,6 @@
                 # manifest.  Maybe we should link to a temp file?  OTOH, that
                 # implies a build environment error that shouldn't go undetected.
    -            mfinfo = self.manifest_get_embed_info(target_desc, ld_args)
    +            #mfinfo = self.manifest_get_embed_info(target_desc, ld_args)
    +            mfinfo = None
                 if mfinfo is not None:
                     mffilename, mfid = mfinfo

2. Open Python-2.7.5\PCbuild\pcbuild.sln

3. Select 'DEBUG' and 'x64' For the configuration.

4. Click 'Build' -> 'Build Solution' (F7):

  • You should now see a successful DEBUG build:
  • ========== Build: 25 succeeded, 0 failed, 0 up-to-date, 1 skipped ==========

Testing Python


Install Python

Now that Python has been built, I will use the script below to install executables and libraries under one directory tree, as if it were installed by a self-installer. Building the msi self installer won't work in Visual Studio Express, in addition, the MSI tool won't package up any of the debug libraries.

1. Save this script to your build directory: manual_install.py

2. Run the script from the build directory:

  • C:\Users\Nick\Downloads\python_build> Python-2.7.5\PCbuild\amd64\python_d.exe manual_install.py
    EXTERNALS_DIR = C:\Users\Nick\Downloads\python_build
    PYTHON_DIR = Python-2.7.5
    TCLTK_DIR = tcltk64
    DST_DIR = C:\Python27_d
    Creating directory: 'C:\\Python27_d'
    Copying C:\Users\Nick\Downloads\python_build\Python-2.7.5\PCbuild\amd64\python_d.exe --> C:\Python27_d
    Copying C:\Users\Nick\Downloads\python_build\Python-2.7.5\PCbuild\amd64\pythonw_d.exe --> C:\Python27_d
    Copying C:\Users\Nick\Downloads\python_build\Python-2.7.5\PCbuild\amd64\python27_d.dll --> C:\Python27_d
    Creating directory: 'C:\\Python27_d\\DLLs'
    Copying C:\Users\Nick\Downloads\python_build\Python-2.7.5\PCbuild\amd64\bz2_d.pyd --> C:\Python27_d\DLLs
    Copying C:\Users\Nick\Downloads\python_build\Python-2.7.5\PCbuild\amd64\pyexpat_d.pyd --> C:\Python27_d\DLLs
    Copying C:\Users\Nick\Downloads\python_build\Python-2.7.5\PCbuild\amd64\select_d.pyd --> C:\Python27_d\DLLs
    Copying C:\Users\Nick\Downloads\python_build\Python-2.7.5\PCbuild\amd64\unicodedata_d.pyd --> C:\Python27_d\DLLs
    Copying C:\Users\Nick\Downloads\python_build\Python-2.7.5\PCbuild\amd64\winsound_d.pyd --> C:\Python27_d\DLLs
    Copying C:\Users\Nick\Downloads\python_build\Python-2.7.5\PCbuild\amd64\_bsddb_d.pyd --> C:\Python27_d\DLLs
    Copying C:\Users\Nick\Downloads\python_build\Python-2.7.5\PCbuild\amd64\_ctypes_d.pyd --> C:\Python27_d\DLLs
    Copying C:\Users\Nick\Downloads\python_build\Python-2.7.5\PCbuild\amd64\_ctypes_test_d.pyd --> C:\Python27_d\DLLs
    Copying C:\Users\Nick\Downloads\python_build\Python-2.7.5\PCbuild\amd64\_elementtree_d.pyd --> C:\Python27_d\DLLs
    Copying C:\Users\Nick\Downloads\python_build\Python-2.7.5\PCbuild\amd64\_hashlib_d.pyd --> C:\Python27_d\DLLs
    Copying C:\Users\Nick\Downloads\python_build\Python-2.7.5\PCbuild\amd64\_msi_d.pyd --> C:\Python27_d\DLLs
    Copying C:\Users\Nick\Downloads\python_build\Python-2.7.5\PCbuild\amd64\_multiprocessing_d.pyd --> C:\Python27_d\DLLs
    Copying C:\Users\Nick\Downloads\python_build\Python-2.7.5\PCbuild\amd64\_socket_d.pyd --> C:\Python27_d\DLLs
    Copying C:\Users\Nick\Downloads\python_build\Python-2.7.5\PCbuild\amd64\_sqlite3_d.pyd --> C:\Python27_d\DLLs
    Copying C:\Users\Nick\Downloads\python_build\Python-2.7.5\PCbuild\amd64\_ssl_d.pyd --> C:\Python27_d\DLLs
    Copying C:\Users\Nick\Downloads\python_build\Python-2.7.5\PCbuild\amd64\_testcapi_d.pyd --> C:\Python27_d\DLLs
    Copying C:\Users\Nick\Downloads\python_build\Python-2.7.5\PCbuild\amd64\_tkinter_d.pyd --> C:\Python27_d\DLLs
    Copying tcltk64\bin\tcl85g.dll --> C:\Python27_d\DLLs
    Copying tcltk64\bin\tclpip85g.dll --> C:\Python27_d\DLLs
    Copying tcltk64\bin\tk85g.dll --> C:\Python27_d\DLLs
    Copying C:\Users\Nick\Downloads\python_build\Python-2.7.5\Include --> C:\Python27_d\include
    Copying C:\Users\Nick\Downloads\python_build\Python-2.7.5\PC\pyconfig.h --> C:\Python27_d\include
    Copying C:\Users\Nick\Downloads\python_build\Python-2.7.5\Lib --> C:\Python27_d\Lib
    Creating directory: 'C:\\Python27_d\\libs'
    Copying C:\Users\Nick\Downloads\python_build\Python-2.7.5\PCbuild\amd64\bz2.lib --> C:\Python27_d\libs
    Copying C:\Users\Nick\Downloads\python_build\Python-2.7.5\PCbuild\amd64\pyexpat.lib --> C:\Python27_d\libs
    Copying C:\Users\Nick\Downloads\python_build\Python-2.7.5\PCbuild\amd64\python27_d.lib --> C:\Python27_d\libs
    Copying C:\Users\Nick\Downloads\python_build\Python-2.7.5\PCbuild\amd64\select.lib --> C:\Python27_d\libs
    Copying C:\Users\Nick\Downloads\python_build\Python-2.7.5\PCbuild\amd64\sqlite3.lib --> C:\Python27_d\libs
    Copying C:\Users\Nick\Downloads\python_build\Python-2.7.5\PCbuild\amd64\unicodedata.lib --> C:\Python27_d\libs
    Copying C:\Users\Nick\Downloads\python_build\Python-2.7.5\PCbuild\amd64\winsound.lib --> C:\Python27_d\libs
    Copying C:\Users\Nick\Downloads\python_build\Python-2.7.5\PCbuild\amd64\_bsddb.lib --> C:\Python27_d\libs
    Copying C:\Users\Nick\Downloads\python_build\Python-2.7.5\PCbuild\amd64\_ctypes.lib --> C:\Python27_d\libs
    Copying C:\Users\Nick\Downloads\python_build\Python-2.7.5\PCbuild\amd64\_ctypes_test.lib --> C:\Python27_d\libs
    Copying C:\Users\Nick\Downloads\python_build\Python-2.7.5\PCbuild\amd64\_elementtree.lib --> C:\Python27_d\libs
    Copying C:\Users\Nick\Downloads\python_build\Python-2.7.5\PCbuild\amd64\_hashlib.lib --> C:\Python27_d\libs
    Copying C:\Users\Nick\Downloads\python_build\Python-2.7.5\PCbuild\amd64\_msi.lib --> C:\Python27_d\libs
    Copying C:\Users\Nick\Downloads\python_build\Python-2.7.5\PCbuild\amd64\_multiprocessing.lib --> C:\Python27_d\libs
    Copying C:\Users\Nick\Downloads\python_build\Python-2.7.5\PCbuild\amd64\_socket.lib --> C:\Python27_d\libs
    Copying C:\Users\Nick\Downloads\python_build\Python-2.7.5\PCbuild\amd64\_sqlite3.lib --> C:\Python27_d\libs
    Copying C:\Users\Nick\Downloads\python_build\Python-2.7.5\PCbuild\amd64\_ssl.lib --> C:\Python27_d\libs
    Copying C:\Users\Nick\Downloads\python_build\Python-2.7.5\PCbuild\amd64\_testcapi.lib --> C:\Python27_d\libs
    Copying C:\Users\Nick\Downloads\python_build\Python-2.7.5\PCbuild\amd64\_tkinter.lib --> C:\Python27_d\libs
    Creating directory: 'C:\\Python27_d\\Scripts'
    Copying C:\Users\Nick\Downloads\python_build\tcltk64\lib --> C:\Python27_d\tcl
    All done!
    [21354 refs]

3. Test that the Tkinter module can be imported:

  • cd C:\
    Python 2.7.5 (default, Oct  5 2013, 13:16:58) [MSC v.1700 64 bit (AMD64)] on win32
    Type "help", "copyright", "credits" or "license" for more information.
    >>> import Tkinter
    [63979 refs]


Install Numpy & Matplotlib in Debug Mode

Setup Environment

1. Save this text to 'benv64_d.bat':

  • @echo off
    :: Add Vistual Studio
    echo Adding Visual Studio to path ...
    call "C:\Program Files (x86)\Microsoft Visual Studio 11.0\VC\vcvarsall.bat" x86_amd64
    :: Hacks for python.distutils
    :: Add Python
    echo Adding python64_d to path ...
    set PATH=C:\python27_d;%PATH%

2. Open a command prompt and call 'benv64_d.bat':

  • call benv64_d.bat
    Adding Visual Studio to path ...
    Adding python64_d to path ...

Installing Numpy

1. Download Numpy-1.7.1.zip

2. Build and install with this command:

  • cd numpy-1.7.1
    python_d.exe setup.py build --debug install

Verify Numpy Installed

1. Try to import numpy:

  • cd c:\
    >>> import numpy


Build & Install FreeType

1. Download and unzip freetype-

2. Open 'freetype-\builds\win32\vs2010\freetype.sln`

3. Select DEBUG and add an 'x64' configuration

4. Build Solution.

5. "Install" freetype to our debug install

  • cd freetype-
    mkdir C:\Python27_d\PC
    mkdir C:\Python27_d\PC\VC6
    cp builds\win32\vc2010\x64\Debug\freetype250_D.lib C:\Python27_d\PC\VC6\freetype.lib

Build & Install zlib


Build & Install libpng


Installing Matplotlib

1. Download and unzip matplotlib-1.3.0

FIXME: Currently need to download and build freetype first, I get this error:

  • building 'matplotlib.ft2font' extension
    c:\users\nick\downloads\python_build\matplotlib-1.3.0\src\ft2font.h(16) : fatal error C1083: Cannot open include file: 'ft2build.h': No such file or directory
    error: command '"C:\Program Files (x86)\Microsoft Visual Studio 11.0\VC\BIN\x86_amd64\cl.exe"' failed with exit status 2

  • For my DEBUG environment, I'm going to use the TK backend, so write this setup.cfg:

  • # Rename this file to setup.cfg to modify matplotlib's
    # build options.
    backend = TkAgg

2. To compile against TK, update the INCLUDE shell variable so matplotlib can find the header, from the python_build dir do:

  • FYI, %CD% expands to the current directory.

  • set INCLUDE=%CD%\tcltk64\include;%INCLUDE%

3. Build and install:

  • cd matplotlib-1.3.0
    python_d setup.py build --debug install 

VS2012 (last edited 2013-10-06 21:35:10 by NickHilton)

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