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Dissmis

Published on 09 Mar 2020

Similar to other programming languages, Python also has some special characters called operators. Operators in Python are useful to perform different operations on variables/values. These variables/values which are passed as an input to an operator are known as operands. Further, these operands & operators form an expression.

Consider a basic arithmetic expression, `a + b`

.Here,a and b are operands and the symbol `+`

is an operator.

Operators in Python are classified into the following **7 types**:

- Arithmetic Operators
- Bitwise Operators
- Assignment Operators
- Relational or Comparison Operators
- Logical Operators
- Identity Operators
- Membership Operators

Using arithmetic operators, we can perform mathematical operations like **addition, subtraction, multiplication, division,** etc. In Python, we also have **additional arithmetic operators** such as **exponent and floor division**.

Click here to practice example Python programs using arithmetic operators.

Operator | Name | Description |
---|---|---|

+ | Addition | The operands on either side of this operator are added |

- | Subtraction | The operand on the right side of this operator is subtracted from the one on the left side |

* | Multiplication | The operands on either side of this operator are multiplied |

/ | Division | The operand on the left side of this operator is divided by the one on the right side. As a result, it returns the quotient in the form of a floating-point value |

% | Modulo | The operand on the left side of this operator is divided by the one on the right side. As a result, it returns the remainder value |

** | Exponent | This operator raises the left side operand to the power of the right side operand |

// | Floor division | The operand on the left side of this operator is divided by the one on the right side. As a result, it returns the quotient in the form of an integer value |

Know more about Arithmetic operators

Python **bitwise operators are used to perform bitwise calculations on integers**. The given integers are converted into binary format and then operations are performed bit by bit. These are **also called as Binary Operators**.

Operator | Name |
---|---|

& | Bitwise AND |

| | Bitwise OR |

^ | Bitwise XOR |

~ | Bitwise NOT |

<< | Bitwise left shift |

>> | Bitwise right shift |

Go ahead and try to understand the example Python programs using Bitwise operators.

Know more about Bitwise operators

There are **three logical operators in Python** - and, or and not. They are used to combine two or more conditional statements.

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

and | The output is true when both the expressions are true |

or | The output is true if either one of the expression is true |

not | Reverses the output |

Know more about Logical operators

Using assignment operators, we can assign values to an operand.

Operator | Name | Description |
---|---|---|

= | Assignment | This operator assigns its right-side value to its left-side operand |

+= | Addition assignment | This operator adds left and the right side operands and assigns the result to the left side operand |

-= | Subtraction assignment | This operator subtracts the right operand from the left operand and assigns the result to the left side operand |

*= | Multiplication assignment | This operator multiplies the right-side operand with the left-side operand and assigns the result to the left side operand |

/= | Division assignment | This operator divides the left side operand by the right-side operand and assigns the quotient to the left side operand |

%= | Modulus assignment | This operator divides the left side operand by the right side operand and assigns the remainder to the left side operand |

**= | Exponentiation assignment | This operator raises the left side operand to the power of the right-side operand and assigns the result value to the left side operand |

//= | Floor division assignment | This operator divides the left operand by the right operand and assigns the quotient value (in the form of an integer value) to the left operand |

&= | Bitwise AND assignment | This operator performs a bitwise AND operation on both the left and the right side operands and assigns the result to the left side operand |

|= | Bitwise OR assignment | This operator performs a bitwise OR operation on both the left and the right side operands and assigns the result to the left side operand |

^= | Bitwise XOR assignment | This operator performs bitwise XOR operation on both the left and the right side operands and assigns the result to the left side operand |

>>= | Bitwise right shift assignment | This operator right shifts the given value by the specified position and assigns the result to the left side operand |

<<= | Bitwise left shift assignment | This operator left shifts the given value by the specified position and assigns the result to the left side operand |

>>*Know more about Assignment operators in Python*

Using these operators, we can compare two operands and determine their relationship.

Operator | Name | Description |
---|---|---|

== | Equal to | Checks whether two operands are equal |

!= | Not equal to | Checks whether two operands are not equal |

> | Greater than | Checks whether the left side operand is greater than the right side operand |

< | Less than | Checks whether the left side operand is less than the right side operand |

>= | Greater than or equal to | Checks whether the left side operand is either greater or equal to the right side operand |

<= | Lesser than or equal to | Checks whether the left side operand is either less than or equal to the right side operand |

Know more about Relational Operators

Identity operators `is`

and `is`

not are used to check whether the memory locations of two variables/objects are the same or not. Also, we can use these operators to find if a variable/object belongs to a particular type or not.

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

is | Returns True if the operands on either side of the operator point to the same object and false otherwise. |

is not | Returns False if the operands on either side of the operator point to the same object and true otherwise. |

Membership operators `in`

and `not in`

are used to find whether a value is present in a particular Python object or not.

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

in | Returns True if it finds a variable in the specified sequence and false otherwise. |

not in | Returns False if it does not find a variable in the specified sequence and false otherwise. |

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