Python Assignment Operators Example

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Following table shows all the assignment operators supported by Python language. Assume variable a holds 10 and variable b holds 20, then:

OperatorDescriptionExample
=Simple assignment operator, Assigns values from right side operands to left side operand c = a + b will assign value of a + b into c
+=Add AND assignment operator, It adds right operand to the left operand and assigns the result to left operand c += a is equivalent to c = c + a
-=Subtract AND assignment operator, It subtracts right operand from the left operand and assigns the result to left operand c -= a is equivalent to c = c - a
*=Multiply AND assignment operator, It multiplies right operand with the left operand and assigns the result to left operand c *= a is equivalent to c = c * a
/=Divide AND assignment operator, It divides left operand with the right operand and assigns the result to left operand c /= a is equivalent to c = c / a
%=Modulus AND assignment operator, It takes modulus using two operands and assigns the result to left operand c %= a is equivalent to c = c % a
**=Exponent AND assignment operator, Performs exponential (power) calculation on operators and assign value to the left operand c **= a is equivalent to c = c ** a
//=Floor Dividion and assigns a value, Performs floor division on operators and assigns value to the left operand c //= a is equivalent to c = c // a

Example:

Try following example to understand all the assignment operators available in Python programming language:

#!/usr/bin/python

a = 21
b = 10
c = 0

c = a + b
print "Line 1 - Value of c is ", c

c += a
print "Line 2 - Value of c is ", c 

c *= a
print "Line 3 - Value of c is ", c 

c /= a 
print "Line 4 - Value of c is ", c 

c  = 2
c %= a
print "Line 5 - Value of c is ", c

c **= a
print "Line 6 - Value of c is ", c

c //= a
print "Line 7 - Value of c is ", c

When you execute the above program, it produces the following result:

Line 1 - Value of c is 31
Line 2 - Value of c is 52
Line 3 - Value of c is 1092
Line 4 - Value of c is 52
Line 5 - Value of c is 2
Line 6 - Value of c is 2097152
Line 7 - Value of c is 99864


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