unsupported-delete-operation / E1138

Message emitted:

%r does not support item deletion

Description:

Emitted when an object does not support item deletion (i.e. doesn't define __delitem__ method).

Problematic code:

FRUITS = ("apple", "orange", "berry")

del FRUITS[0]  # [unsupported-delete-operation]

Correct code:

FRUITS = ["apple", "orange", "berry"]

del FRUITS[0]

Created by the typecheck checker.