deprecated-class / W4904

Message emitted:

Using deprecated class %s of module %s

Description:

The class is marked as deprecated and will be removed in the future.

Problematic code:

from collections import Iterable  # [deprecated-class]

Correct code:

from collections.abc import Iterable

Additional details:

The actual replacement needs to be studied on a case by case basis by reading the deprecation warning or the release notes.

Created by the stdlib checker.