The if and if...else statement

If can be understood as metaphorical English what if which most people use in their day to day life. What if this doesn't happen? If I were to become a billionaire. If this match is drawn we are out of the champions' league. If Churchill had not come to power Battle of Britain would have been lost. If this car doesn't start, use the other one. We are loaded with numerous examples from across the globe on usage of if. Same is the case with programming languages. Majority of the programming languages have control statements and you will find majority of them use the keyword if in their control statements. Python is no different and also facilitates the usage of if.  Let's understand with an example:

password= raw_input("Enter the passwordt")
if password=="MI6": 
     print "Welcome Mr. Bond."

Note

For entering inputs through command line raw_input() function is used in Python.Any function or control statement block in Python is started by placing the colon at the...