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nonlocal-and-global (PLE0115)#

Derived from the Pylint linter.

What it does#

Checks for variables which are both declared as both nonlocal and global.

Why is this bad?#

A nonlocal variable is a variable that is defined in the nearest enclosing scope, but not in the global scope, while a global variable is a variable that is defined in the global scope.

Declaring a variable as both nonlocal and global is contradictory and will raise a SyntaxError.

Example#

counter = 0


def increment():
    global counter
    nonlocal counter
    counter += 1

Use instead:

counter = 0


def increment():
    global counter
    counter += 1

References#