# Operator Precedence in Python Programming

###### Operators in Python

In this lesson, we will learn what is the rule of Operator Precedence in Python programming and how it works with some examples.

## What is Operator Precedence

Operator Precedence in Python programming is a rule that describe which
operator is solved first
in an expression. For example: ***** and **/** have same precedence and their
associativity is Left to Right, so the expression **18 / 2 * 5** is treated as **(18
/ 2) * 5**.

Let's take another example say **x = 8 + 4 * 2** here value of **x**
will be 16 and not 24 why, because ***** operator has a higher precedence than
**+** operator. So **4*2** gets multiplied first and then adds into **8**.

Operator Associativity means how operators of the same precedence are evaluated in an expression.

The table below shows all the operators in Python with precedence and associativity.

### Precedence of Operators in Python

OPERATOR |
DESCRIPTION |

( ) |
Parentheses |

** |
Exponent |

~ + - |
Unary Bitwise NOT, Unary Plus, Unary Minus |

*/ // % |
Multiplication Division Floor Division Modulus |

+ - |
Addition, Subtraction |

<< >> |
Bitwise leftshift and right shift |

&^ | |
Bitwise AND Bitwise XOR Bitwise OR |

>>= < <= == != |
Greater than Greater then or equal to Less then Less then or equal to Equal to Not equal to |

is, is notin, not in |
Identity Operators Membership Operators |

and or not |
Logical Operators |

Please don't get confused after seeing the above table. They all are used in a different situation but not all at the same time. For solving basic equation we will consider the following operator precedence only.

**( )**Brackets will be solved first.*** / % //**Which ever come first in your equation.**+ -**Which ever come first in your equation.

Now let's see some examples for more understanding.

#### Example 1

45 % 2 + 3 * 245 % 2+ 3 * 2 will be solved as per operator precedence rule 1 +3 * 2will be solved as per operator precedence rule1 + 6will be solved as per operator precedence rule 7 (Answer)

#### Example 2

19 + (5 / 2) + 4 % 2 - 6 * 3 19 +(5 / 2)+ 4 % 2 - 6 * 3 will be solved as per operator precedence rule 19 + 2.5 +4 % 2- 6 * 3 will be solved as per operator precedence rule 19 + 2.5 + 0 -6 * 3will be solved as per operator precedence rule19 + 2.5+ 0 - 18 will be solved as per operator precedence rule21.5 + 0- 18 will be solved as per operator precedence rule21.5 - 18will be solved as per operator precedence rule 3.5 (Answer)

## Test Your Knowledge

Attempt the multiple choice quiz to check if the lesson is adequately clear to you.