A. K. A. little practical coding/markdown insights to keep in mind in special situations.
Use the '.' operator to mean this package. Double . (..) means on the level of sibling modules/packages.
Use the '.' operator as in "from . import object" for objects in the __init__.py file.
In a child package '.' used as above means "parent.child" as in: from .. import object actually means from parent.this_package import object.
When one wants to import from a sibling package use ... Example: from ..package import object translates to from parent.sibling_package import object.