invalid-all-format / E0605#

Message emitted:

Invalid format for __all__, must be tuple or list

Description:

Used when __all__ has an invalid format.

Problematic code:

__all__ = "CONST"  # [invalid-all-format]

CONST = 42

Correct code:

__all__ = ("CONST",)

CONST = 42

Created by the variables checker.