When I compiled python using Cython, I was unable to call vcvarsall.bat

Question

I have tried to reinstall the Visual Studio Installer many times, but every time I execute "python setup.py build_ext --inplace", All will show the error "b'dk\xf6e\rN\x94^\tg \x00\ x00C\x00o\x00m\x00m\x00o\x00n\x00\x020\r\x00\n\x00'"

error: Error executing cmd /u /c "C:\Program Files (x86)\Microsoft Visual Studio\2022\BuildTools\VC\Auxiliary\Build\vcvarsall.bat" x86_amd64 && set”

Answer 1

Thanks for reaching out!

 The error message suggests there might be a problem with how you're executing the command or with your environment setup.

Here are a couple of things you might want to try:

1. Verify Visual Studio Installation: Make sure that your Visual Studio Build Tools installation is complete and includes the C++ components. Sometimes, a missing component can cause errors like this.
2. Check the Path: Ensure that the path you are using for vcvarsall.bat is correct. It should point to the appropriate version of Visual Studio that you have installed. For example:
3. Run as Administrator: Sometimes, permission issues can cause problems. Try running your command prompt as an Administrator and see if it makes a difference.
4. Directly Run vcvarsall.bat: Try running vcvarsall.bat directly from command line before executing your Python setup script. This might mitigate some issues by ensuring your environment variables are set up correctly.
5. Use Specific Architecture Commands: If you're not specifically needing x86_amd64, consider using vcvars64.bat or vcvars32.bat based on whether your target is 64-bit or 32-bit, respectively.

"C:\Program Files (x86)\Microsoft Visual Studio\2022\BuildTools\VC\Auxiliary\Build\vcvarsall.bat" x86_amd64

References: https://learn.microsoft.com/en-us/cpp/build/building-on-the-command-line?view=msvc-170&wt.mc_id=knowledgesearch_inproduct_azure-cxp-community-insider#use-the-developer-tools-in-an-existing-command-window
https://learn.microsoft.com/en-us/visualstudio/python/working-with-c-cpp-python-in-visual-studio?view=visualstudio&wt.mc_id=knowledgesearch_inproduct_azure-cxp-community-insider#convert-c++-projects-to-python-extensions

Let me know if you need any further help with this. I will be happy to assist.
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