# Python Logical Operators Example

Advertisements

Following table shows all the logical operators supported by Python language. Assume variable a holds 10 and variable b holds 20, then:

Operator | Description | Example |
---|---|---|

and | Called Logical AND operator. If both the operands are true, then the condition becomes true. | (a and b) is true. |

or | Called Logical OR Operator. If any of the two operands are non zero, then the condition becomes true. | (a or b) is true. |

not | Called Logical NOT Operator. Use to reverse the logical state of its operand. If a condition is true, then Logical NOT operator will make it false. | not(a and b) is false. |

## Example:

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

#!/usr/bin/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 - Either a is not true or b is not true" else: print "Line 5 - a and b are true"

When you execute the above program it produces the 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 - Either a is not true or b is not true