CBSE Class 11 - Informatics Practices - Python - Augmented Assignment Operators (#eduvictors)(#cbseclass11Python)

Python - Augmented Assignment Operators

CBSE Class 11 - Informatics Practices

Python provides augmented assignment operators, which combine the impact of an arithmetic operator with an assignment operator.

e.g. If you want to add value of b to a and then assign the result to a i.e.  a = a + b can be written as
a += b

Various augmented operators are:

Operation	Description
x += y	x = x + y
x -= y	x = x - y
x *= y	x = x * y
x /= y	x = x / y
x //= y	x = x // y
x **= y	x = x ** y
x %= y	x = x % y
x &= y	x = x & y
x |= y	x = x | y
x ^= y	x = x ^ y
x >>= y	x = x >> y
x <<= y	x = x << y

Q1: What is the output of the following code?

a, b = 10, 2
a += b
print(a)
a += b
print(a)

Answer:
12
14


Q2: What is the output of the following code?
x = 10
x -= 6
print(x)
x -= 6
print(x)

Answer:
4
-2


Q3: What is the output of the following code?
x, y = 2, 3
x **=y
print(x)
x **= y
print(x)

Answer:
8
512


Q4: Does x += y violate mutability?

Answer: No. x += y creates a new object x storing result of x+y.


☞See also:
 Informatics Syllabus (New) - 2019-20

 Unit Test Paper I - Python -2019-20
 Python Programming Basics (MCQs) - YouTube Video
 Python Snippets -1 (Arithmetic Operators)

 Python Basics (Q & A)
 Python Basics (Q & A) Part-2
 Python Basics - Variables (Q & A)
 Python Basics - Literals (Q & A)