On Windows 10 Build 14393 with Python 3.7.0, Cython 0.29.6 and MinGW32 located at C:\MinGW with the path C:\MinGW\bin on the system PATH environment variable, I am unable to get Cython code to compile using MingW. When I attempt to, I receive the following:
running build_ext
building 'abc_image_stats' extension
error: Unable to find vcvarsall.bat
c:\program files\python\python37\lib\site-packages\Cython\Compiler\Main.py:367: FutureWarning: Cython directive 'language_level' not set, using 2 for now (Py2). This will change in a later release! File: C:\Users\abc\Downloads\python\abc_image_stats\abc_image_stats.pyx
tree = Parsing.p_module(s, pxd, full_module_name)
I have tried various fixes, such as those mentioned here, to no avail. After making the config file as instructed in that solution, (but before changing cgwinccompiler.py), I attempted to compile again but then received this error:
running build_ext
Traceback (most recent call last):
File "setup.py", line 7, in <module>
include_dirs=[numpy.get_include()] # https://stackoverflow.com/a/14657667
File "C:\Program Files\Python\Python37\lib\distutils\core.py", line 148, in setup
dist.run_commands()
File "C:\Program Files\Python\Python37\lib\distutils\dist.py", line 966, in run_commands
self.run_command(cmd)
File "C:\Program Files\Python\Python37\lib\distutils\dist.py", line 985, in run_command
cmd_obj.run()
File "C:\Program Files\Python\Python37\lib\distutils\command\build_ext.py", line 308, in run
force=self.force)
File "C:\Program Files\Python\Python37\lib\distutils\ccompiler.py", line 1031, in new_compiler
return klass(None, dry_run, force)
File "C:\Program Files\Python\Python37\lib\distutils\cygwinccompiler.py", line 282, in __init__
CygwinCCompiler.__init__ (self, verbose, dry_run, force)
File "C:\Program Files\Python\Python37\lib\distutils\cygwinccompiler.py", line 157, in __init__
self.dll_libraries = get_msvcr()
File "C:\Program Files\Python\Python37\lib\distutils\cygwinccompiler.py", line 86, in get_msvcr
raise ValueError("Unknown MS Compiler version %s " % msc_ver)
ValueError: Unknown MS Compiler version 1914
c:\program files\python\python37\lib\site-packages\Cython\Compiler\Main.py:367: FutureWarning: Cython directive 'language_level' not set, using 2 for now (Py2). This will change in a later release! File: C:\Users\abc\Downloads\python\abc_image_stats\abc_image_stats.pyx
tree = Parsing.p_module(s, pxd, full_module_name)
So then I did the last two steps; I added
elif msc_ver == '1914':
# Visual Studio 2015 / Visual C 14.0
# "msvcr140.dll no longer exists" http://blogs.msdn.com/b/vcblog/archive/2014/06/03/visual-studio-14-ctp.aspx
return ['vcruntime140']
to the cygwinccompiler.py file and copied vcruntime140.dll to the C:\Program Files\Python\Python37\libs folder, but then I receive this error upon attempting to compile:
running build_ext
building 'abc_image_stats' extension
C:\MinGW\bin\gcc.exe -mdll -O -Wall "-IC:\Program Files\Python\Python37\lib\site-packages\numpy\core\include" "-IC:\Program Files\Python\Python37\include" "-IC:\Program Files\Python\Python37\include" -c abc_image_stats.c -o build\temp.win-amd64-3.7\Release\abc_image_stats.o
In file included from C:\Program Files\Python\Python37\include/Python.h:68:0,
from abc_image_stats.c:4:
C:\Program Files\Python\Python37\include/pytime.h:123:59: warning: 'struct timeval' declared inside parameter list will not be visible outside of this definition or declaration
PyAPI_FUNC(int) _PyTime_FromTimeval(_PyTime_t *tp, struct timeval *tv);
^~~~~~~
C:\Program Files\Python\Python37\include/pytime.h:130:12: warning: 'struct timeval' declared inside parameter list will not be visible outside of this definition or declaration
struct timeval *tv,
^~~~~~~
C:\Program Files\Python\Python37\include/pytime.h:135:12: warning: 'struct timeval' declared inside parameter list will not be visible outside of this definition or declaration
struct timeval *tv,
^~~~~~~
writing build\temp.win-amd64-3.7\Release\abc_image_stats.cp37-win_amd64.def
C:\MinGW\bin\gcc.exe -shared -s build\temp.win-amd64-3.7\Release\abc_image_stats.o build\temp.win-amd64-3.7\Release\abc_image_stats.cp37-win_amd64.def "-LC:\Program Files\Python\Python37\libs" "-LC:\Program Files\Python\Python37\PCbuild\amd64" -lpython37 -lvcruntime140 -o C:\Users\abc\Downloads\python\abc_image_stats\abc_image_stats.cp37-win_amd64.pyd
C:\Program Files\Python\Python37\libs/libpython37.a: error adding symbols: File format not recognized
collect2.exe: error: ld returned 1 exit status
error: command 'C:\\MinGW\\bin\\gcc.exe' failed with exit status 1
c:\program files\python\python37\lib\site-packages\Cython\Compiler\Main.py:367: FutureWarning: Cython directive 'language_level' not set, using 2 for now (Py2). This will change in a later release! File: C:\Users\abc\Downloads\python\abc_image_stats\abc_image_stats.pyx
tree = Parsing.p_module(s, pxd, full_module_name)
To be clear, my setup.py file looks like this:
from distutils.core import setup
from Cython.Build import cythonize
import numpy
setup(
ext_modules = cythonize("abc_image_stats.pyx"),
include_dirs=[numpy.get_include()] # https://stackoverflow.com/a/14657667
)
and I am attempting to compile using python setup.py build_ext --inplace via the command line.
All I want to do is compile the Cython code on a Windows 10 machine using MingW. I've tried everything I can think of and don't know what's wrong. Any ideas on how to solve this?
