unnecessary-builtin-import (UP029)

Derived from the pyupgrade linter.

Fix is always available.

What it does

Checks for imports of Python 3 builtins from Python 2 compatibility shims such as python-future and six.

These shims existed to access Python 3 builtins from code that also ran on Python 2. On Python 3-only code, the imports are redundant.

from builtins import str

str(1)

Use instead:

str(1)

This fix is marked as unsafe because it will remove comments attached to the unused import.

This rule will not trigger on imports required by the isort configuration.