Python Comparison Operators

Comparison operators in Python are used to compare two values or expressions. The result of a comparison is always a Boolean value: either True or False.

List of Comparison Operators

Detailed Explanation & Examples

1. Equal to (==)

Checks if two values are equal.

a = 10
b = 10
print(a == b)  # True, because 10 equals 10

c = "hello"
d = "Hello"
print(c == d)  # False, string comparison is case-sensitive

2. Not Equal to (!=)

Checks if two values are not equal.

x = 5
y = 3
print(x != y)  # True, because 5 is not equal to 3

print(10 != 10)  # False, both values are equal

3. Greater than (>)

Returns True if the left operand is greater than the right operand.

print(7 > 3)  # True
print(3 > 7)  # False

4. Less than (<)

Returns True if the left operand is less than the right operand.

print(2 < 5)  # True
print(6 < 1)  # False

5. Greater than or equal to (>=)

Returns True if the left operand is greater than or equal to the right operand.

print(5 >= 5)  # True (equal)
print(7 >= 3)  # True (greater)
print(2 >= 4)  # False

6. Less than or equal to (<=)

Returns True if the left operand is less than or equal to the right operand.

print(4 <= 4)  # True (equal)
print(3 <= 7)  # True (less)
print(8 <= 2)  # False

Using Comparison Operators in Conditions

Comparison operators are often used in conditional statements to control the program flow.

age = 20

if age >= 18:
    print("You are an adult.")
else:
    print("You are a minor.")

Output:

You are an adult.

Combining Comparison Operators with Logical Operators

You can combine comparisons with logical operators (and, or, not) to form more complex conditions.

score = 85

if score >= 50 and score <= 100:
    print("You passed!")
else:
    print("You failed!")

Summary

• Comparison operators compare two values.
• They return True or False.
• They are essential for decision-making in programs.