Re-opening because I've found a simple example that does not involve __main__.

./func/__init__.py:func = 1
./func/__init__.py:from . import func
./func/__init__.py:print(f"Namespace value of func after func module import:{func}")
./func/func.py:print("Module imported")
./main.py:import func
./main.py:def func(x):
./main.py:	return x

If you create files that look like that, and then run: "python3.6 main.py" I get this output:
Namespace value of func after func module import:1

If I comment out the "func = 1" line, then func ends up being imported (and printing as a <module...>).