Maybe because you're using Arch Linux which calibre-debug actually is the same as the python command, but that command would fail on macOS and Windows. The error is raised from the "optparse.OptionParser" library.
It there a way to use calibre's Python interpreter as normal Python command? That would be much easier to install packages via pip.
Last edited by xxyzz; 01-30-2023 at 06:47 AM.
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