__init__.py
-----------
(empty)

interpreter
-----------
>>> import threadedhttp; dir(threadedhttp)
['__builtins__', '__doc__', '__file__', '__name__', '__path__']

__init__.py
-----------
from http import Http

interpreter
-----------
>>> import threadedhttp; dir(threadedhttp)
['Http', '__builtins__', '__doc__', '__file__', '__name__', '__path__', 'connectionpool', 'cookiejar', 'dummy', 'http']

__init__.py
-----------
from http import Http
from threadedhttp import HttpRequest, HttpProcessor

interpreter
-----------
>>> import threadedhttp; dir(threadedhttp)
['Http', 'HttpProcessor', 'HttpRequest', '__builtins__', '__doc__', '__file__', '__name__', '__path__', 'connectionpool', 'cookiejar', 'dummy', 'http', 'threadedhttp']