useless-exception-statement (PLW0133)
Derived from the Pylint linter.
Fix is sometimes available.
What it does
Checks for an exception that is not raised.
Why is this bad?
It's unnecessary to create an exception without raising it. For example,
ValueError("...") on its own will have no effect (unlike
raise ValueError("...")) and is likely a mistake.
Known problems
This rule only detects built-in exceptions, like ValueError, and does
not catch user-defined exceptions.
Example
Use instead:
Fix safety
This rule's fix is marked as unsafe, as converting a useless exception
statement to a raise statement will change the program's behavior.