except-with-empty-tuple (B029)

Derived from the flake8-bugbear linter.

What it does

Checks for exception handlers that catch an empty tuple.

Why is this bad?

An exception handler that catches an empty tuple will not catch anything, and is indicative of a mistake. Instead, add exceptions to the except clause.

Example

try:
    1 / 0
except ():
    ...

Use instead:

try:
    1 / 0
except ZeroDivisionError:
    ...

References

• Python documentation: except clause