Comparison Operators in Python
Last Updated :
04 Dec, 2024
Python operators can be used with various data types, including numbers, strings, boolean and more. In Python, comparison operators are used to compare the values of two operands (elements being compared). When comparing strings, the comparison is based on the alphabetical order of their characters (lexicographic order).
Be cautious when comparing floating-point numbers due to potential precision issues. Consider using a small tolerance value for comparisons instead of strict equality.
Now let’s see the comparison operators in Python one by one.
Python Equality Operators a == b
The Equal to Operator is also known as the Equality Operator in Python, as it is used to check for equality. It returns True if both the operands are equal i.e. if both the left and the right operands are equal to each other. Otherwise, it returns False.
Example: In this code, we have three variables ‘a’, ‘b’ and ‘c’ and assigned them with some integer value. Then we have used equal to operator to check if the variables are equal to each other.
Python
a = 9
b = 5
c = 9
# Output
print(a == b)
print(a == c)
Output:
False
True
Inequality Operators a != b
The Not Equal To Operator returns True if both the operands are not equal and returns False if both the operands are equal.
Example: In this code, we have three variables ‘a’, ‘b’ and ‘c’ and assigned them with some integer value. Then we have used equal to operator to check if the variables are equal to each other.
Python
a = 9
b = 5
c = 9
# Output
print(a != b)
print(a != c)
Output:
True
False
Greater than Sign a > b
The Greater Than Operator returns True if the left operand is greater than the right operand otherwise returns False.
Example: In this code, we have two variables ‘a’ and ‘b’ and assigned them with some integer value. Then we have used greater than operator to check if a variable is greater than the other.
Python
a = 9
b = 5
# Output
print(a > b)
print(b > a)
Output:
True
False
Less than Sign a < b
The Less Than Operator returns True if the left operand is less than the right operand otherwise it returns False.
Example: In this code, we have two variables ‘a’ and ‘b’ and assigned them with some integer value. Then we have used less than operator to check if a variable is less than the other.
Python
a = 9
b = 5
# Output
print(a < b)
print(b < a)
Output:
False
True
Greater than or Equal to Sign x >= y
The Greater Than or Equal To Operator returns True if the left operand is greater than or equal to the right operand, else it will return False.
Example: In this code, we have three variables ‘a’, ‘b’ and ‘c’ and assigned them with some integer value. Then we have used greater than or equal to operator to check if a variable is greater than or equal to the other.
Python
a = 9
b = 5
c = 9
# Output
print(a >= b)
print(a >= c)
print(b >= a)
Output:
True
True
False
Less than or Equal to Sign x <= y
The Less Than or Equal To Operator returns True if the left operand is less than or equal to the right operand.
Example: In this code, we have three variables ‘a’, ‘b’ and ‘c’ and assigned them with some integer value. Then we have used less than or equal to operator to check if a variable is less than or equal to the other.
Python
a = 9
b = 5
c = 9
# Output
print(a <= b)
print(a <= c)
print(b <= a)
Output:
False
True
True
Chaining Comparison Operators
In Python, we can use the chaining comparison operators to check multiple conditions in a single expression. One simple way of solving multiple conditions is by using Logical Operators. But in chaining comparison operators method, we can achieve this without any other operator.
Syntax: a op1 b op2 c
Example: In this code we have a variable ‘a’ which is assigned some integer value. We have used the chaining comparison operators method to compare the the value of ‘a’ with multiple conditions in a single expression.
Python
a = 5
# chaining comparison operators
print(1 < a < 10)
print(10 > a <= 9)
print(5 != a > 4)
print(a < 10 < a*10 == 50)
Output:
True
True
False
True