typevar-name-incorrect-variance / C0105#

Message emitted:

Type variable name does not reflect variance%s


Emitted when a TypeVar name doesn't reflect its type variance. According to PEP8, it is recommended to add suffixes '_co' and '_contra' to the variables used to declare covariant or contravariant behaviour respectively. Invariant (default) variables do not require a suffix. The message is also emitted when invariant variables do have a suffix.

Correct code:

# This is a placeholder for correct code for this message.

Additional details:

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Created by the basic checker.