exc-info-outside-except-handler (LOG014)

Added in 0.12.0 · Related issues · View source

Derived from the flake8-logging linter.

Fix is sometimes available.

What it does

Checks for logging calls with exc_info= outside exception handlers.

Why is this bad?

Using exc_info=True outside of an exception handler attaches None as the exception information, leading to confusing messages:

>>> logging.warning("Uh oh", exc_info=True)
WARNING:root:Uh oh
NoneType: None

Example

import logging


logging.warning("Foobar", exc_info=True)

Use instead:

import logging


logging.warning("Foobar")

Fix safety

The fix is always marked as unsafe, as it changes runtime behavior.