verbose-raise (TRY201)

Derived from the tryceratops linter.

Fix is always available.

What it does

Checks for needless exception names in raise statements.

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

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

Use instead:

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

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.