Minimal set of files required to distribute an embed-Cython-compiled code and make it work on any machine

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After further research (I tried in an empty Win 7 x64 bit VM, without any VCredist previously installed), it seems that these files are enough:

  • the program itself, test.exe (produced by cython --embed and compilation with cl.exe)

  • python37.dll

  • python37.zip coming from packages named “Windows x86-64 embeddable zip file” in https://www.python.org/downloads/windows/

  • vcruntime140.dll, as mentioned in Can I bundle the Visual Studio 2015 C++ Redistributable DLL’s with my application? or ask the user to install vc_redist.x64.exe before

  • ucrtbase.dll

  • more than 30 files api-ms-win-*.dll were required too; if not you will have the following error:

    … api-ms-win-crt-runtime-l1-1-0.dll is missing …

Notes:

  • if you require another library, like pygame, just copy/paste the folder from C:\Python37\Lib\site-packages\pygame seems to work

  • for me, concrt140.dll, msvcp140.dll, vccorlib140.dll did not seem necessary

Useful to test all this: Prevent a Python-embedded to look in my default path C:\Python38 for modules.

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