verbose-raise (TRY201)

Derived from the tryceratops linter.

Fix is always available.

What it does

Checks for needless exception names in raise statements.

Why is this bad?

It's redundant to specify the exception name in a raise statement if the exception is being re-raised.

Example

def foo():
    try:
        ...
    except ValueError as exc:
        raise exc

Use instead:

def foo():
    try:
        ...
    except ValueError:
        raise

Fix safety

This rule's fix is marked as unsafe, as it doesn't properly handle bound exceptions that are shadowed between the except and raise statements.