Python Assignment Operators

Satellite · Operators

Python Assignment Operators

Combine operations with assignment to write compact, expressive code.

Review operator tableAvoid mutation gotchas

Operator table

Operator	Example	Equivalent
+=	count += 1	count = count + 1
-=	balance -= fee	balance = balance - fee
*=	price *= 1.1	price = price * 1.1
/=	ratio /= total	ratio = ratio / total
//=	batch //= 10	Floor division
%=	index %= length	Modulo assignment
**=	value **= 2	Exponentiation
&=, `	=, ^=`	Bitwise updates

Mutability considerations

For mutable objects, augmented assignment may modify in place:

items = [1, 2]
alias = items
items += [3]
# alias now [1, 2, 3]

Use .copy() or rebind if you need isolation.

Next up in your learning path

Review arithmetic operators

Understand the operations behind assignments.

Companion

Study mutability

Know when augmented assignment mutates vs rebinds.

Reference

Practice loops with counters

Use `+=` and `-=` inside loops for clarity.

Practice