Following example to understand all the logical operators available in Python programming language:

#!/usr/b in/python

a = 10 

b = 20 

c = 0 

if (a and b): 

print “Line 1 – a and b are true” 

else: 

print “Line 1 – Either a is not true or b is not true”

if (a or b): 

print “Line 2 – Either a is true or b is true or both are true” 

else: 

print “Line 2 – Neither a is true nor b is true”

a = 0 

if ( a and b ): 

print “Line 3 – a and b are true” 

else: 

print “Line 3 – Either a is not true or b is not true”

if ( a or b ): 

print “Line 4 – Either a is true or b is true or both are true” 

else: 

print “Line 4 – Neither a is true nor b is true” 

if not( a and b) : 

print “Line 5 – a and b are true” 

else: 

print “Line 5 – Either a is not true or b is not true”

When you execute the above program it produces following result:

Line 1 – a and b are true 

Line  2 – Either a is true or b is true or both are true

 Line  3 – Either a is not true or b is not true

Line  4 – Either a is true or b is true or both are true

 Line  5 – a and b are true