invalid-all-object (PLE0604)

Derived from the Pylint linter.

What it does

Checks for the inclusion of invalid objects in __all__.

Why is this bad?

In Python, __all__ should contain a sequence of strings that represent the names of all "public" symbols exported by a module.

Assigning anything other than a tuple or list of strings to __all__ is invalid.

Example

__all__ = [Foo, 1, None]

Use instead:

__all__ = ["Foo", "Bar", "Baz"]

References

• Python documentation: The import statement