calling python functions using variables

[creo]

Hi all!

this is a (relatively) newbie question


I am writing a shell in Python and I am facing a problem

The problem is, after taking the input from user, i have to execute the
command which is a python function

i invoke an 'ls' command like this
        commands.ls()
where commands.py is a file in the same directory

what i want to do is
        commands.VARIABLE()
where VARIABLE holds the name of the function which i want to execute
and depends on what the user has typed


what should i do to achieve that?

any help is appreciated

thank you

-creo


P.S. if you want me to clarify the question, please tell me so