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When I compile a script using Cython, Python 3.6 is used to generate all the necessary files. How can one use a conda environment running Python version 3.5 to compile a Cython .pyx file on Windows?

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  • Have you tried compiling it from within a sourced conda env? On windows to source your env: activate <your_env_name> Commented Oct 9, 2018 at 23:36
  • Yes, that's what I've been doing. It does not work. Unless I don't understand your suggestion correctly, that is not the solution. Commented Oct 9, 2018 at 23:45
  • "Doesn't work"--you're going to need to provide more information if you want help. What doesn't work? What exception are you getting? Commented Oct 10, 2018 at 0:15
  • "No module named 'script-name'". Also, the generated .pyd file is script-name.cp36-win_amd64.pyd. Notice the cp36 in the file name. Commented Oct 10, 2018 at 0:33
  • You need to share the code you're running and the stack trace you're getting please Commented Oct 10, 2018 at 3:53

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I found the solution. I had accidentaly activated a different Python environment that uses Python version 3.6. Once I activated the right environment, I managed to compile and run my Cython-built program.

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This solution also worked for me on a MacOS by launching an app I know uses my specific python version. Tho wondering if there's a programatic or pythonic way of doing this within the venv project itself.

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