Catch matplotlib warning

Question

I have a code (shown below as a minimal working example, MWE) which produces a warning when plotting a colorbar:

/usr/local/lib/python2.7/dist-p         


        

Answer 1

You probably don't want to catch this warning as an exception. That will interrupt the function call.

Use the warnings standard library module to control warnings.

You can suppress a warning from a specific function call using a context manager:

import warnings
with warnings.catch_warnings():
    warnings.simplefilter("ignore")
    fig.tight_layout()

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To ignore all warnings from matplotlib:

warnings.filterwarnings("ignore", module="matplotlib")

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To ignore only UserWarnings from matplotlib:

warnings.filterwarnings("ignore", category=UserWarning, module="matplotlib")