Importing issues with base class for inheritance

[riccardoob]

You could import pricing prior to item_pricing in init.py

# pricing/__init__.py
from .pricing import Pricing
from .item_pricing import ItemPricing

then in the item_pricing.py file

# pricing/item_pricing.py
from . import Pricing

class ItemPricing(Pricing):
    ....

I cannot answer about TYPE_CHECKING because I don't use it. The very word looks antipythonic to me.

Id tried and it works. Why does this work though?