Python NOT EQUAL operator
Last Updated : 14 Dec, 2023
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.
Python NOT EQUAL operators Syntax
The Operator not equal in the Python description:
- != Not Equal operator, works in both Python 2 and Python 3.
- <> Not equal operator in Python 2, deprecated in Python 3.
Syntax: Value A != Value B
Return Type:
- Returns either True or False
Note: It is important to keep in mind that this comparison operator will return True if the values are the same but are of different data types.
Examples of NOT EQUAL Operator in Python
Here are a few examples of Python NOT EQUAL operators.
Example 1: NOT EQUAL Operator with same DataType
In this example, we are comparing different values of the same datatype, that is integers to see how all values are does not equal Python and how the NOT EQUAL operator works.
Python3
A = 1
B = 2
C = 2
print(A!=B)
print(B!=C)
|
Output:
True
False
Example 2: NOT EQUAL operator with different DataTypes
In this example, we are comparing similar values of the different datatypes to see how the NOT EQUAL operator works. We are taking an integer, a float, and a Python String as input.
Python3
A = 1
B = 1.0
C = "1"
print(A!=B)
print(B!=C)
print(A!=C)
|
Output:
False
True
True
Compare lists in Python using the Not Equal Operator
Python NOT EQUAL operator can also be used to compare two lists. Let’s see how can this be done.
In this example, we are taking 3 Python lists, out of which two are integers and one is a string list. Then we compared them using the does not equal operator in Python.
Python3
list1 = [10, 20, 30]
list2 = [10, 20, 30]
list3 = ["geeks", "for", "geeks"]
print(list1 != list2)
print(list1 != list3)
|
Output:
False
True
Use of if statement with the Not Equal operator in Python
The NOT EQUAL operator can also be used with the Python if else statements. Let us see a simple example of this.
In this example, we are comparing two strings and then printing a message based on the output of does not equal operator in Python.
Python3
str1 = 'Geeks'
str2 = 'GeeksforGeeks'
if str1 != str2:
print("Strings are not Equal")
else:
print("Strings are Equal")
|
Output:
Numbers are not Equal
Python NOT EQUAL Operator with Custom Object
We can also use the NOT EQUAL operator with custom objects in Python. Here is an example of how the does not equal Python operator works with custom objects.
The Python __ne__() decorator gets called whenever the does not equal Python operator in Python 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):
if type(x) != type(self):
return True
if self.student_name != x.student_name:
return True
else:
return False
s1 = Student("Shyam")
s2 = Student("Raju")
s3 = Student("babu rao")
print(s1 != s2)
print(s2 != s3)
|
Output:
True
True
Similar Reads
Python Operators
In Python programming, Operators in general are used to perform operations on values and variables. These are standard symbols used for logical and arithmetic operations. In this article, we will look into different types of Python operators. OPERATORS: These are the special symbols. Eg- + , * , /,
6 min read
Precedence and Associativity of Operators in Python
In Python, operators have different levels of precedence, which determine the order in which they are evaluated. When multiple operators are present in an expression, the ones with higher precedence are evaluated first. In the case of operators with the same precedence, their associativity comes int
4 min read
Python Arithmetic Operators
Python Arithmetic Operators
Python operators are fundamental for performing mathematical calculations. Arithmetic operators are symbols used to perform mathematical operations on numerical values. Arithmetic operators include addition (+), subtraction (-), multiplication (*), division (/), and modulus (%). OperatorDescriptionS
5 min read
Difference between / vs. // operator in Python
In Python, both / and // are used for division, but they behave quite differently. Let's dive into what they do and how they differ with simple examples. / Operator (True Division)The / operator performs true division.It always returns a floating-point number (even if the result is a whole number).I
2 min read
Python - Star or Asterisk operator ( * )
The asterisk (*) operator in Python is a versatile tool used in various contexts. It is commonly used for multiplication, unpacking iterables, defining variable-length arguments in functions, and more. Uses of the asterisk ( * ) operator in PythonMultiplicationIn Multiplication, we multiply two numb
3 min read
What does the Double Star operator mean in Python?
The ** (double star)operator in Python is used for exponentiation. It raises the number on the left to the power of the number on the right. For example: 2 ** 3 returns 8 (since 2³ = 8)It is one of the Arithmetic Operator (Like +, -, *, **, /, //, %) in Python and is also known as Power Operator. Pr
2 min read
Division Operators in Python
Division Operators allow you to divide two numbers and return a quotient, i.e., the first number or number at the left is divided by the second number or number at the right and returns the quotient. There are two types of division operators: Float divisionInteger division( Floor division)When an in
5 min read
Modulo operator (%) in Python
Modulo operator (%) in Python gives the remainder when one number is divided by another. Python allows both integers and floats as operands, unlike some other languages. It follows the Euclidean division rule, meaning the remainder always has the same sign as the divisor. It is used in finding even/
4 min read