zjm_code
    |-----a.py
    |-----a
          |----- __init__.py
    |-----b.py

in a.py is :

c='ccc'

in b.py is :

import a

print dir(a)

when i execute b.py ,it show (it import 'a' folder):

['__builtins__', '__doc__', '__file__', '__name__', '__path__']

and when i delete a folder, it show ,(it import a.py):

['__builtins__', '__doc__', '__file__', '__name__', 'c']

so my question is :

how to import a.py via not delete a folder

thanks