How Can I Silently Handle All Python Warnings?

How to Silently Handling Python Warnings

When working with Python code that generates numerous warnings, it can be frustrating to have to navigate through them. Instead of modifying the code to suppress specific warnings for individual functions, there are more efficient approaches to globally disable them.

One such method is using the warnings.catch_warnings context manager. This context manager allows you to temporarily suppress warnings within a specific block of code:

import warnings

def fxn():
    warnings.warn("deprecated", DeprecationWarning)

with warnings.catch_warnings():
    warnings.simplefilter("ignore")
    fxn()

# Python 3.11 and higher syntax:
with warnings.catch_warnings(action="ignore"):
    fxn()

For a more drastic measure, you can suppress all warnings with a single command:

import warnings
warnings.filterwarnings("ignore")

This should effectively disable any warnings that would otherwise be displayed during runtime. It's important to note that this approach may not be suitable for all situations. If you anticipate any warnings that you do want to see, you may want to consider using the warnings.catch_warnings context manager with warnings.simplefilter("ignore") instead.

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