gh-87115: catch exception

[DrStrangepork]

• catch BaseException
• minor linting

• Issue: pdb & multiprocessing.Pool: AttributeError: module '__main__' has no attribute '__spec__' #87115

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[ghost]

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[hauntsaninja]

Why do we need to catch BaseException? Can we just another try: except AttributeError around specifically the __spec__ attribute access?

[DrStrangepork]

I can change it, but that leaves the issue for every other error type.

[DrStrangepork]

What is the status of this pull request? Is anything else required of me?

[encukou]

The accepted fix is #116141: __spec__ should be available, even if it can be None.