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load-before-global-declaration (PLE0118)

Added in v0.0.174 · Related issues · View source

Derived from the Pylint linter.

What it does

Checks for uses of names that are declared as global prior to the relevant global declaration.

Why is this bad?

The global declaration applies to the entire scope. Using a name that's declared as global in a given scope prior to the relevant global declaration is a SyntaxError.

Example

counter = 1


def increment():
    print(f"Adding 1 to {counter}")
    global counter
    counter += 1

Use instead:

counter = 1


def increment():
    global counter
    print(f"Adding 1 to {counter}")
    counter += 1

References