How to use Cython on Windows 10 with python 3.8 - c

Question

I want to know how correctly convert py documents to C with help Cython
But all the time a have some error.
D:\Cython\test4>python setup.py build_ext --inplace
running build_ext
Traceback (most recent call last):
File "setup.py", line 4, in <module>
setup(ext_modules = cythonize('hello.pyx', compiler_directives={'language_level': 3}))
File "C:\Users\Alexandr\AppData\Local\Programs\Python\Python38\lib\distutils\core.py", line 148, in setup
dist.run_commands()
File "C:\Users\Alexandr\AppData\Local\Programs\Python\Python38\lib\distutils\dist.py", line 966, in run_commands
self.run_command(cmd)
File "C:\Users\Alexandr\AppData\Local\Programs\Python\Python38\lib\distutils\dist.py", line 985, in run_command
cmd_obj.run()
File "C:\Users\Alexandr\AppData\Local\Programs\Python\Python38\lib\distutils\command\build_ext.py", line 306, in run
self.compiler = new_compiler(compiler=self.compiler,
File "C:\Users\Alexandr\AppData\Local\Programs\Python\Python38\lib\distutils\ccompiler.py", line 1032, in new_compiler
return klass(None, dry_run, force)
File "C:\Users\Alexandr\AppData\Local\Programs\Python\Python38\lib\distutils\cygwinccompiler.py", line 282, in __init__
CygwinCCompiler.__init__ (self, verbose, dry_run, force)
File "C:\Users\Alexandr\AppData\Local\Programs\Python\Python38\lib\distutils\cygwinccompiler.py", line 157, in __init__
self.dll_libraries = get_msvcr()
File "C:\Users\Alexandr\AppData\Local\Programs\Python\Python38\lib\distutils\cygwinccompiler.py", line 86, in get_msvcr
raise ValueError("Unknown MS Compiler version %s " % msc_ver)
ValueError: Unknown MS Compiler version 1916
I have hello.pyx file, which includes this code
cpdef int test(int x):
cdef int y = 1
cdef int i
for i in range(1, x+1):
y *= i
return y
Setup.py file includes
from distutils.core import setup
from Cython.Build import cythonize
setup(ext_modules = cythonize('hello.pyx', compiler_directives={'language_level': 3}))
Microsoft Visual Studio has installed, gcc compiler also installed. What should I do?

Answer 1

Hey I found simple solution. Just install Microsfot Visual Studio (community version works). Make sure you got MSVC and Windows 10 SDK checked. I was told both are required.
Select Desktop C++ development:
Select MSVC and Win10 SDK:
After install restart pc. It should compile with python setup.py build_ext --incplace