Python Language Tutorial => If statement

Example

if condition:
    body

The if statements checks the condition. If it evaluates to True, it executes the body of the if statement. If it evaluates to False, it skips the body.

if True:
    print "It is true!"
>> It is true!

if False:
    print "This won't get printed.."

The condition can be any valid expression:

if 2 + 2 == 4:
    print "I know math!"
>> I know math!