The else Statement of Python

An else statement can be combined with an if statement. An else statement contains the block of code that executes if the conditional expression in the if expression in the if expression resolves to 0 or a false value.

The else statement is an optional statement and there could be at most only one else statement following if.

The syntax of the if….else statement is:

If expression :

            Statement(s)

else:

            Statement(s)

Example:

# ! /usr/bin/python

var1 = 100

if var1:

            print “1 – Got a true expression value”

            print var1

else

            print “1 – Got a true expression value”

            print var1

var2 = 0

if var2:

            print “2 – Got a true expression value”

            print var2

else

            print “2 – Got a true expression value”

            print var2

print  “Good bye”

This will produce following result:

1 – Got a true expression value

100

2 – Got a true expression value

0

Good bye!