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Exceptions and flow of control

Author

Clayton Cafiero

Published

2025-01-05

Exceptions and flow of control

While it鈥檚 considered pythonic to use exceptions and to follow the rule of EAFP (鈥渆asier to ask for forgiveness than permission鈥�), it is unwise to use exceptions for controlling the flow of program execution except within very narrow limits.

Here are some rules to follow:

  • Keep try and except blocks as small as possible.

  • Handle an exception in the most simple and direct way possible.

  • Avoid calling another function from within an except block which might send program flow away from the point where the exception was raised.

Copyright 漏 2023鈥�2025 Clayton Cafiero

No generative AI was used in producing this material. This was written the old-fashioned way.

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