redundant-tuple-in-exception-handler (B013)

Derived from the flake8-bugbear linter.

Fix is always available.

What it does

Checks for single-element tuples in exception handlers (e.g., except (ValueError,):).

Note: Single-element tuples consisting of a starred expression are allowed.

A tuple with a single element can be more concisely and idiomatically expressed as a single value.

try:
    ...
except (ValueError,):
    ...

Use instead:

try:
    ...
except ValueError:
    ...