Introduction to Python
Programming Cycle of Python
Varibles and Datatypes in Python
Input and Output in Python
Operators in Python
Precedence of Operators in Python
Typecasting in Python
If Else in Python
Loops in Python
Break, Continue and Pass in Python
Functions in Python
Default Arguments and Keyword Arguments in Python
Strings in python
Lists in Python
Tuple in Python
Dictionary in Python
Sets in Python
List Comprehension in Python
Unpacking Sequences in Python
Higher Order Functions in Python
Lambda Functions in Python
Sieve of Eratosthenes Algorithm in Python
Linear Search in Python
Binary Search in Python
Selection Sort in Python
Bubble Sort in Python
Insertion Sort in Python
Merge Sort in Python
Precedence of Operators in Python
When multiple operators are used in one expression such as +,-, **, or ^, etc, we need to decide the order in which to evaluate different operators on the basis of priority in order to get the correct results.
- Python operator Precedence Table
- Example
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Python Operator Precedence Table
| Precedence | Operator | Description | Associativity |
|---|---|---|---|
| Highest | ( ) | Parentheses (grouping) | Not Applicable |
| [ ] | List indexing | Not Applicable | |
| f"[...]" | String formatting (f-strings) | Not Applicable | |
| ... ** ... | Exponentiation | Right to left | |
| +x, -x | Unary plus, Unary minus | Not Applicable | |
| ~x | Bitwise NOT | Not Applicable | |
| Higher | *, /, % | Multiplication, Division, Modulus | Left to right |
| // | Floor division (integer division) | Left to right | |
| +, - | Addition, Subtraction | Left to right | |
| <<, >> | Bitwise shift operators | Left to right | |
| & | Bitwise AND | Left to right | |
| ^ | Bitwise XOR | Left to right | |
| | | Bitwise OR | Left to right | |
| <, <=, >, >= | Comparison operators | Left to right | |
| ==, != | Equality operators | Left to right | |
| not x | Boolean NOT | Not Applicable | |
| and | Boolean AND | Left to right | |
| or | Boolean OR | Left to right | |
| Lowest | =, +=, -=, ... | Assignment operators | Right to left |
Example
# Operator precedence example
x = 10 + 5 * 2 # Multiplication has higher precedence than addition
print(x) # Output: 20
y = (10 + 5) * 2 # Parentheses enforce higher precedence for addition
print(y) # Output: 30
z = 10 - 5 / 2 # Division has higher precedence than subtraction
print(z) # Output: 7.5
w = 10 - (5 / 2) # Parentheses enforce higher precedence for division
print(w) # Output: 7.5
a = 2 ** 3 ** 2 # Exponentiation right-to-left associativity
print(a) # Output: 512
b = (2 ** 3) ** 2 # Parentheses enforce higher precedence for exponentiation
print(b) # Output: 64
Output
20
30
7.5
7.5
512
64