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Python - Introduction Python - Syntax Python - Variable Python - Number Python - Casting Python - String Python - Operators Python - Conditions Python - Loops Python - List Python - Tuple Python - Set Python - Dictionary Python - Function Python - Module Python - Date & Time Python - Input Output Python - Error & Exception Python - File Handling
Python OOP
OOP - Introduction OOP - Class Members OOP - Constructor Destructor OOP - Data Hiding OOP - Inheritance OOP - Overriding OOP - Overloading

Python Operators

An operator oprforms mathematical and logical operations on given operands.

Python divides the operators in the following groups:

  • Arithmetic operators
  • Assignment operators
  • Comparison operators
  • Logical operators
  • Identity operators
  • Membership operators
  • Bitwise operators
  • Ternary operator

Python Arithmetic Operators

Arithmetic operators are used with numeric values to perform common mathematical operations:

Operator Name Example
+ Addition 5 + 5
- Subtraction 5 - 3
* Multiplication 5 * 3
/ Division 5 / 3
% Modulus 15 % 2
** Exponentiation 5**3 will return 125
// Floor division 16 / 2 will gave 5.33
16 // 2 will gave 5

Python Assignment Operators

Assignment operators are used to assign values to variables:

Operator Example Same As
= x = 5 x = 5
+= x += 3 x = x + 3
-= x -= 3 x = x - 3
*= x *= 3 x = x * 3
/= x /= 3 x = x / 3
%= x %= 3 x = x % 3
//= x //= 3 x = x // 3
**= x **= 3 x = x ** 3
&= x &= 3 x = x & 3
|= x |= 3 x = x | 3
^= x ^= 3 x = x ^ 3
>>= x >>= 3 x = x >> 3
<<= x <<= 3 x = x << 3


Python Comparison Operators

Comparison operators are used to compare two values:

Operator Name Example
== Equal x = y
!= Not equal x != y
<> Not equal x <> y
> Greater than x > y
< Less than x < y
>= Greater than or equal to x >= y
<= Less than or equal to x <= y

Python Logical Operators

Logical operators are used to combine conditional statements:

Operator Description Example
and  Returns True if both statements are true x < 5 and  x < 10
or Returns True if one of the statements is true x < 5 or x < 4
not Reverse the result, returns False if the result is true not(x < 5 and x < 10)

Python Identity Operators

Identity operators are used to compare the objects, not if they are equal, but if they are actually the same object, with the same memory location:

Operator Description Example
is  Returns true if both variables are the same object x is y
is not Returns false if both variables are the same object x is not y

Python Membership Operators

Membership operators are used to test if a sequence is presented in an object:

Operator Description Example
in  Returns True if a sequence with the specified value is present in the object x in y
not in Returns False if a sequence with the specified value is present in the object x not in y

Python Bitwise Operators

Logical operators are used to combine conditional statements:

Operator Name Description
AND Sets each bit to 1 if both bits are 1
| OR Sets each bit to 1 if one of two bits is 1
 ^ XOR Sets each bit to 1 if only one of two bits is 1
NOT Inverts all the bits
<< Zero fill left shift Shift left by pushing zeros in from the right and let the leftmost bits fall off
>> Signed right shift Shift right by pushing copies of the leftmost bit in from the left, and let the rightmost bits fall off

Python Ternary Operator

Ternary operators also known as conditional expressions are operators that evaluate something based on a condition being true or false.

It simply allows to test a condition in a single line replacing the multiline if-else making the code compact.

Syntax:
[on_true] if [expression] else [on_false]