python call a function whose name is stored in a variable

[giuspen]

is it possible in python to call a function whose name is stored in a variable?
I explain better: I have a module MODULE with many many functions and actually I have an "if... elsif... elsif..." which calls the function A if in a variable VAR there's A, calls B if in the variable VAR there's B and so on.
Is it possible to do something like MODULE.VAR()?
Thanks in advance,
Giuseppe.

[Zugzwang]

There's the eval()-function, but use it with care as it is very simple to introduce security problems into your program with it.

Most of the situations in which you have some problem like this can be resolved using polymorphism (in object oriented programming), see here (http://en.wikipedia.org/wiki/Polymorphism_in_object-oriented_programming) for examples.

[ghostdog74]

>>> def f(a,b):
... return a+b
...
>>> a=f
>>> globals()['a'](1,2)
3

[unutbu]

If the function f is defined in amodule.py, then you can access it with


import amodule
varstring='f'
function=getattr(amodule,varstring)
function()

[giuspen]

If the function f is defined in amodule.py, then you can access it with


import amodule
varstring='f'
function=getattr(amodule,varstring)
function()


The function getattr is exactly what I was searching for.
Thanks again,
Giuseppe.