Python nested if statement

We can use nested if statements for situations where we want to check for a secondary condition if the first condition executes as true. For this, we can have an if-else statement inside of another if-else statement. Let’s look at the syntax of a nested if statement:

if expression1:
   statement(s)
   if expression2:
      statement(s)
   elif expression3:
      statement(s)
   elif expression4:
      statement(s)
   else:
      statement(s)
else:
   statement(s)

lets run the following example :

a=10
if a>=20:
    print "Condition is True"
else:
    if a>=15:
        print "Checking second value"
    else:
        print "All Conditions are false"

output of above example :

All Conditions are false.

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