Debugger warning: It seems that frozen modules are being used (Python 3.11.0)

krassowski · May 10, 2023, 4:13pm

Appending one or more documentation links to this warning with further context might be helpful.

This is a fine suggestion but may be easier to act on if filled as an issue against GitHub - microsoft/debugpy: An implementation of the Debug Adapter Protocol for Python which is where the code generating the warning resides:

github.com

microsoft/debugpy/blob/9442a22e6c3fe6b09e54c6e8f5b37844c6fbf605/src/debugpy/_vendored/pydevd/pydevd_file_utils.py#L587-L602


      
          if code.co_filename.startswith('<frozen'):
              # See: https://github.com/fabioz/PyDev.Debugger/issues/213
              report('Debugger warning: It seems that frozen modules are being used, which may')
              report('make the debugger miss breakpoints. Please pass -Xfrozen_modules=off')
              report('to python to disable frozen modules.')
              report('Note: Debugging will proceed. Set PYDEVD_DISABLE_FILE_VALIDATION=1 to disable this validation.')
          
          elif not os.path.isabs(code.co_filename):
              report('Debugger warning: The os.path.realpath.__code__.co_filename (%s)', code.co_filename)
              report('is not absolute, which may make the debugger miss breakpoints.')
              report('Note: Debugging will proceed. Set PYDEVD_DISABLE_FILE_VALIDATION=1 to disable this validation.')
          
          elif not exists(code.co_filename):  # Note: checks for files inside .zip containers.
              report('Debugger warning: It seems the debugger cannot find os.path.realpath.__code__.co_filename (%s).', code.co_filename)
              report('This may make the debugger miss breakpoints in the standard library.')
              report('Note: Debugging will proceed. Set PYDEVD_DISABLE_FILE_VALIDATION=1 to disable this validation.')

Maybe the solution should be for ipykernel to automatically append -Xfrozen_modules=off flag?

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Debugger warning: It seems that frozen modules are being used (Python 3.11.0)

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