python - ValueError: Attempted relative import in non-package

I have two Python files, one stored in the location
/Python/plata.py, and another in the location
/Python/tao/mock.py. This is what my
plata.py file looks
like::

def
            printSomething():
 print 'This is a
            test.'

I'm
trying to import the printSomething() function inside my
mock.py file as
follows:

from . import
            plata

plata.printSomething()

However,
this is the error I'm
encountering:

Traceback
            (most recent call last):
File "/home/manas/Python/tao/mock.py", line 1, in
            
from . import plata
ValueError: Attempted relative
            import in
            non-package

I've
included the __init__.py files in locations
/Python/__init__.py and
/Python/tao/__init__.py as well. However, I'm still
encountering the same error.

What seems to be
wrong here?