I think the answer by jpmc26, while by no means wrong, comes down too heavily on circular imports. They can work just fine, if you set them up correctly.
The easiest way to do so is to use import my_module
syntax, rather than from my_module import some_object
. The former will almost always work, even if my_module
included imports us back. The latter only works if my_object
is already defined in my_module
, which in a circular import may not be the case.
To be specific to your case: Try changing entities/post.py
to do import physics
and then refer to physics.PostBody
rather than just PostBody
directly. Similarly, change physics.py
to do import entities.post
and then use entities.post.Post
rather than just Post
.