Python Assignment Operators are used to assign values to variables. The assignment operator is represented as the “=” symbol used in assignment statements and assignment expressions.
Following are the different types of assignment operators in Python:
| Operator | Description | Syntax |
|---|---|---|
| = | Assign the value of the right side of the expression to the left side operand | x = y + z |
| += | Add and Assign: Add right side operand with left side operand and then assign to left operand | a += b |
| -= | Subtract AND: Subtract the right operand from the left operand and then assign it to the left operand: True if both operands are equal | a -= b |
| *= | Multiply AND: Multiply the right operand with the left operand and then assign it to the left operand | a *= b |
| /= | Divide AND: Divide left operand with right operand and then assign to left operand | a /= b |
| %= | Modulus AND: Takes modulus using left and right operands and assigns result to left operand | a %= b |
| //= | Divide(floor) AND: Divide the left operand with the right operand and then assign the value(floor) to the left operand | a //= b |
| **= | Exponent AND: Calculate exponent(raise power) value using operands and assign value to left operand | a **= b |
| &= | Performs Bitwise AND on operands and assigns value to left operand | a &= b |
| |= | Performs Bitwise OR on operands and assigns value to left operand | a |= b |
| ^= | Performs Bitwise xOR on operands and assigns value to left operand | a ^= b |
| >>= | Performs Bitwise right shift on operands and assigns value to left operand | a >>= b |
| <<= | Performs Bitwise left shift on operands and assigns value to left operand | a <<= b |
The right-hand side value or operand is assigned to the left-hand operand.
Assignment operators in Python
Simple example code.
a = 5 # assign value
b = a # assign the expression to the left operand
print("b value = ", b)
# a = a + b assign the expression to the left operand
a +=b
print("a + b = ", a)
# a = a - b or a -= b assign the expression to the left operand
a -= b
print("a - b = ", a)
# a = a * b, or a *= b assign the expression to the left operand
a *= b
print("a * b = ", a)
# a = a / b or a /= b assign the expression to the left operand
a /= b
print("a / b = ", a)
# a = a % b or a %= b assign the expression to the left operand
a %= b
print("a % b = ", a)
Output:
Complete code list
| Operator | Example | Equivalent to |
|---|---|---|
| = | x = 5 | x = 5 |
| += | x += 5 | x = x + 5 |
| -= | x -= 5 | x = x – 5 |
| *= | x *= 5 | x = x * 5 |
| /= | x /= 5 | x = x / 5 |
| %= | x %= 5 | x = x % 5 |
| //= | x //= 5 | x = x // 5 |
| **= | x **= 5 | x = x ** 5 |
| &= | x &= 5 | x = x & 5 |
| |= | x |= 5 | x = x | 5 |
| ^= | x ^= 5 | x = x ^ 5 |
| >>= | x >>= 5 | x = x >> 5 |
| <<= | x <<= 5 | x = x << 5 |
Do comment if you have any doubts or suggestions on this Python operator topic.
Note: IDE: PyCharm 2021.3.3 (Community Edition)
Windows 10
Python 3.10.1
All Python Examples are in Python 3, so Maybe its different from python 2 or upgraded versions.