Generally I think Brett Cannon has at least one talk online about how the Python import system works which is quite interesting.
What you can't do with the Python import system is having an `org.foo.bar` and `org.foo.baz` as namespaces if they are from different PyPI packages unless you do some hoops (pre Python 3.3).
It's just very complex and until Python 3.3 it was very hard to split things on the filesystem. See also http://www.python.org/dev/peps/pep-0420/
Generally I think Brett Cannon has at least one talk online about how the Python import system works which is quite interesting.
What you can't do with the Python import system is having an `org.foo.bar` and `org.foo.baz` as namespaces if they are from different PyPI packages unless you do some hoops (pre Python 3.3).