Namespace Package PEP 561 Support

[chrisphilip322]

The current documentation here indicates that mypy does not support namespace packages in terms of importing type hint information from packages.

At my org, we use a company wide namespace package for all our packages which effectively means there is currently no way to import type hinting information for our internal libraries.

My question is, is supporting namespace packages a planned feature?

[gvanrossum]

I think this is a duplicate of #1645. Someone started an implementation but never completed it.