In Python, how does one catch warnings as if they were exceptions?


A third-party library (written in C) that I use in my python code is issuing warnings. I want to be able to use the try except syntax to properly handle these warnings. Is there a way to do this?

Answer rating: 164

To handle warnings as errors simply use this:

import warnings

After this you will be able to catch warnings same as errors, e.g. this will work:

except RuntimeWarning:
    import ipdb; ipdb.set_trace()

P.S. Added this answer because the best answer in comments contains misspelling: filterwarnigns instead of filterwarnings.

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