distutils MSVC: CCompiler_spawn() got an unexpected keyword argument 'env' #17216
Description
In the words of @jaraco, it looks like numpy is incompatible with pypa/distutils#6, which breaks the building of Cython-based extensions using MSVC. Triggered by switching from setuptools 49.6 to 50.0 (see also pypa/setuptools#2368)
Error message:
self.run_command('build_ext')
File "c:\cibw\python\pythonx86.3.5.4\tools\lib\site-packages\setuptools\_distutils\cmd.py", line 313, in run_command
self.distribution.run_command(command)
File "c:\cibw\python\pythonx86.3.5.4\tools\lib\site-packages\setuptools\_distutils\dist.py", line 986, in run_command
cmd_obj.run()
File "c:\cibw\python\pythonx86.3.5.4\tools\lib\site-packages\numpy\distutils\command\build_ext.py", line 274, in run
self.build_extensions()
File "D:\a\1\s\setup.py", line 168, in build_extensions
if self.can_compile_link(compile_flags, link_flags):
File "D:\a\1\s\setup.py", line 142, in can_compile_link
extra_postargs=compile_flags)
File "c:\cibw\python\pythonx86.3.5.4\tools\lib\site-packages\setuptools\_distutils\_msvccompiler.py", line 403, in compile
self.spawn(args)
File "c:\cibw\python\pythonx86.3.5.4\tools\lib\site-packages\setuptools\_distutils\_msvccompiler.py", line 507, in spawn
return super().spawn(cmd, env=env)
File "c:\cibw\python\pythonx86.3.5.4\tools\lib\site-packages\numpy\distutils\ccompiler.py", line 92, in <lambda>
m = lambda self, *args, **kw: func(self, *args, **kw)
TypeError: CCompiler_spawn() got an unexpected keyword argument 'env'
Numpy/Python version information:
numpy-1.18.5-cp35-cp35m-win_amd64.whl
setuptools 50.0
Thanks,
Michael