Catch same names for exceptions in nested try-except blocks

[birkenfeld]

Current problem

Given this code

try:
    something
except Exception as err:
    try:
        something else
	except Exception as err:
		handle
	print(err)

Depending on whether the second except triggers, err will be undefined in the print statement.

Desired solution

Pylint should probably catch this and suggest to rename one of the err variables.

Additional context

No response

[jacobtylerwalls]

Good candidate for redefined-outer-name.