suppressible-exception (SIM105)

Derived from the flake8-simplify linter.

Fix is sometimes available.

What it does

Checks for try-except-pass blocks that can be replaced with the contextlib.suppress context manager.

Why is this bad?

Using contextlib.suppress is more concise and directly communicates the intent of the code: to suppress a given exception.

Note that contextlib.suppress is slower than using try-except-pass directly. For performance-critical code, consider retaining the try-except-pass pattern.

Example

try:
    1 / 0
except ZeroDivisionError:
    pass

Use instead:

import contextlib

with contextlib.suppress(ZeroDivisionError):
    1 / 0

References

• Python documentation: contextlib.suppress
• Python documentation: try statement
• a simpler try/except (and why maybe shouldn't)