switch-case alternative in Python

Python has so 'switch - case' support unlike most other common languages. Of course you can use If-else block to serve your purpose. But there is an elegant alternative to 'switch-case' in python, using dictionary. Go though the following code (you should try running it).

# this is the default function
def errorMessage():
    print "Incorrect input. Please enter a number between 0 and 3."

def fnc0():
    print "This is function 0"

def fnc1():
    print "This is function 1"

def fnc2():
    print "This is function 2"

def fnc3():
    print "This is function 3"


fncDict = {'0': fnc0, '1': fnc1, '2': fnc2, '3': fnc3}

num = raw_input("Enter a number between 0 and 3")
# if num is found as a key in the dictionary fncDict, then corresponding function is called
# else the function errorMessage is called
fncDict.get(num, errorMessage)()

Hope you will find it interesting!