executing a function/method from a variable

[Yves]

What is the best way to execute a function which name is stored in a variable ?

Right now I use an eval, but I'm wondering if there isn't a better way:



Here is a simplified example, but what I use this for is to parse a formated 
text file, and execute a different method depending on the pattern:

import sys


class dummy(object):
   def __init__(self, arg):
     self.todo = 'self.print' + arg;

   def printa(self):
     print 'a'

   def printb(self):
     print 'b'

   def doit(self):
     #k = eval(self.todo)
     #k()

     eval(self.todo)()



o = dummy(sys.argv[1])
o.doit()

Thanks.

--
Yves.
http://www.sollers.ca/