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Python 3 - Comparison Operators Example
These operators compare the values on either side of them and decide the relation among them. They are also called Relational operators.
Assume variable a holds the value 10 and variable b holds the value 20, then −
Operator | Description | Example |
---|---|---|
== | If the values of two operands are equal, then the condition becomes true. | (a == b) is not true. |
!= | If values of two operands are not equal, then condition becomes true. | (a!= b) is true. |
> | If the value of left operand is greater than the value of right operand, then condition becomes true. | (a > b) is not true. |
< | If the value of left operand is less than the value of right operand, then condition becomes true. | (a < b) is true. |
>= | If the value of left operand is greater than or equal to the value of right operand, then condition becomes true. | (a >= b) is not true. |
<= | If the value of left operand is less than or equal to the value of right operand, then condition becomes true. | (a <= b) is true. |
Example
Assume variable a holds the value 10 and variable b holds the value 20, then −
#!/usr/bin/python3 a = 21 b = 10 if ( a == b ): print ("Line 1 - a is equal to b") else: print ("Line 1 - a is not equal to b") if ( a != b ): print ("Line 2 - a is not equal to b") else: print ("Line 2 - a is equal to b") if ( a < b ): print ("Line 3 - a is less than b" ) else: print ("Line 3 - a is not less than b") if ( a > b ): print ("Line 4 - a is greater than b") else: print ("Line 4 - a is not greater than b") a,b = b,a #values of a and b swapped. a becomes 10, b becomes 21 if ( a <= b ): print ("Line 5 - a is either less than or equal to b") else: print ("Line 5 - a is neither less than nor equal to b") if ( b >= a ): print ("Line 6 - b is either greater than or equal to b") else: print ("Line 6 - b is neither greater than nor equal to b")
Output
When you execute the above program, it produces the following result −
Line 1 - a is not equal to b Line 2 - a is not equal to b Line 3 - a is not less than b Line 4 - a is greater than b Line 5 - a is either less than or equal to b Line 6 - b is either greater than or equal to b
python_basic_operators.htm
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