Python NOT EQUAL operator
In this article, we are going to see != (Not equal) operators. In Python != is defined as not equal to operator. It returns True if operands on either side are not equal to each other, and returns False if they are equal.
Note: It is important to keep in mind that this comparison operator will return True if the the values are same but are of different data types.
Syntax: Value A != Value B
Example 1: Comparing different values of the same data type
Python3
A = 1B = 2C = 2print(A!=B)print(B!=C) |
Output:
True False
Example 2: Comparing same values of different data type
Python3
A = 1B = 1.0C = "1"print(A!=B)print(B!=C)print(A!=C) |
Output:
False True True
Example 3: Python not equal with custom object
The __ne__() gets called whenever the not equal operator is used. We can override this function to alter the nature of the not equal operator.
Python3
class Student: def __init__(self, name): self.student_name = name def __ne__(self, x): # return true for different types # of object if type(x) != type(self): return True # return True for different values if self.student_name != x.student_name: return True else: return Falses1 = Student("Shyam")s2 = Student("Raju")s3 = Student("babu rao")print(s1 != s2)print(s2 != s3) |
Output:
True True
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