Using getattr() to construct function objects from strings

funcs.py

def color_red():
    return 'I am red'

def color_green():
    return 'I am green'

def color_blue():
    return 'I am blue'

strfunc.py

#!/usr/bin/python
# Demo of constructing function object from strings

from __future__ import print_function

# module where the functions are defined
import funcs

# entry point when executed
if __name__=='__main__':
    colors = ['red','blue','green']
    for color in colors:
        funcname = 'color_{0:s}'.format(color)
        print(getattr(funcs,funcname)())