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I have a .pyx module that I've been trying to compile for use with 64-bit python 3.4 on Windows through various means but with no success.

After a lot of trial and error, it does compile with

python setup.py build_ext --inplace --compiler=mingw32

but of course, that won't work with 64-bit python.

With msvc as the compiler, the error is

File "C:\Python34\lib\distutils\msvc9compiler.py", line 287, in query_vcvarsall
raise ValueError(str(list(result.keys())))
ValueError: ['path']
  • Windows 7
  • Microsoft Windows SDK for Windows 7 and .NET Framework 4 installed
  • There appears to be some Microsoft Visual Studio 10.0 stuff in C:\Program Files (x86) (including vcvarsall.bat)

Solutions that don't revolve around distutils are also welcome.

--- EDIT: Additional information

I have now modified distutils to recognize mingw-w64 as per http://bugs.python.org/issue11723. I then made libpython34.a using gendef and dlltool, but get an error

c:\Python34\libs/libpython34.a: file not recongnized: File truncated

when running

python setup.py build_ext --inplace --compiler=mingw64
sjp
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  • Why not install the 64-bit mingw toolchain? – MattDMo Dec 15 '14 at 16:11
  • Any one in particular you would recommend? As far as I've seen there are a few... I have mingw-w64 installed, but distutils doesn't offer it as an option, so I suppose there's more to it? – sjp Dec 16 '14 at 07:48

1 Answers1

7

Ok, at long last I managed to make it work.

The fantastic resources by Christoph Gohlke (http://www.lfd.uci.edu/~gohlke/pythonlibs) are key.

  1. Install your desired Python version in the conventional way
  2. Install any extensions you need from Gohlke's site
  3. Install MinGW-w64 from http://tdm-gcc.tdragon.net/download
  4. Patch distutils as per http://bugs.python.org/issue11723
  5. Install the appropriate version of libpython from Gohlke's site
  6. Bob's yer uncle

(Trying all sorts of wild suggestions for this task, I have gone through many more steps but as far as I can tell, these are the only ones that actually made a difference in the end)

sjp
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    to also apply it to the newest version of MinGW-w64 you have to slightly change the patch and remove all -mno-cygwin parameters from cygwinccompiler.py see: http://stackoverflow.com/questions/6034390/compiling-with-cython-and-mingw-produces-gcc-error-unrecognized-command-line-o/6035864#6035864 – der_die_das_jojo Mar 05 '15 at 09:21