Support package ignores for deprecated

[kasium]

Feature

The deprecated check is a great feature, however its tidious if the project checked by mypy is a library which might deprecate functions. These functions are then still exported (e.g. in an init file) and have tests. For all these cases, the deprecated check will find something.

As the mypy config only supports customizations of errors per package but not the customization of packages per rule, this is a missing feature

[JelleZijlstra]

Agree it would be useful to have some way to override deprecations. One possible approach: an option to allow a glob and set the deprecation behavior for anything matching that glob. For example, deprecation_override = [["datetime.*", "ignore"], ["asyncio.*", "error"]].

[tyralla]

Here is a related suggestion. Allowing * wildcards seems helpful. However, maybe a nested list is a little inconvenient and offers more flexibilty then usually needed. So, maybe sticking to the mentioned suggestion (e.g. deprecated_exclude = ["m1.*", "m2.f"]) would be favourable (for the majority of users)?