In the following layout: - mypy.ini contains ``` [mypy] disallow_untyped_defs = True [mypy-a.b.*] disallow_untyped_defs = False ``` - `a` contains `__init__.py` and a directory `a/b` - `a/b` contains `c.py` with an untyped def Mypy will complain about missing type annotations in `a.b.c`. If I create `a/b/__init__.py`, the errors go away. This is a regression in v0.800.