import vs from module import : any performance issue?

[Pierre Rouleau]

Thanks to all that replied.  For anyone interested, I also found the 
following links useful:

- Fredrik Lundh provides sound advices in his `Importing Python 
Modules`_ note: http://www.effbot.org/zone/import-confusion.htm

- The section *Imports* of `PEP-8, Style Guide for Python Code`_ :
http://www.python.org/peps/pep-0008.html

- Also read `Importing * From a Package`_ in the Python Tutorial.
http://www.python.org/doc/current/tut/node8.html#SECTION008410000000000000000

Pierre