What Are Assignment Operators?

In Python, assignment operators are used to assign values to variables. They bind a value to a name so you can use it later in your code. Python supports basic assignment and compound assignment operators that both assign and update values.

1. Basic Assignment Operator

The single equals sign = assigns a value to a variable.

Here, x gets 10 and y gets 5.

2. Compound Assignment Operators

Compound assignment operators update a variable’s value based on its current value and an expression.

Addition Assignment +=

It is equivalent to:

x = x + 5

Subtraction Assignment -=

Equivalent to:

x = x - 3

Multiplication Assignment *=

Equivalent to:

x = x * 3

Division Assignment /=

Division always returns a float result.

Floor Division Assignment //=

This performs integer (floor) division and assigns the integer result.

Modulus Assignment %=

The variable becomes the remainder of the division.

Exponentiation Assignment **=

Raises x to the power of 3.

Why Use Compound Assignment?

Compound assignment operators:

  • Make code shorter

  • Improve readability

  • Avoid repeating the variable name

Example:

Assignment with Different Types

You can assign different data types to variables in Python because it is dynamically typed.

Chain Assignment

Python allows assigning the same value to multiple variables in one line.

Key Points to Remember

  • = assigns values to variables

  • Compound operators like +=, -=, etc. update the variable’s existing value

  • Python supports dynamic typing (variables can change data types)

  • Chain assignment assigns one value to multiple variables