Python if statements are used when there arises a situation to choose between multiple options depending on the results of the conditionality. For example, a number entered by the user needs to be categorized as a positive number or negative number. For such a case, the if statement provides a path for implementation. Let see example of an if statement.
Example 1
# Python program to check if number is positive or negative
num = float(input('Enter a number: '))
if num >= 0:
print('Positive Number found')
else:
print('Negative Number found')
Output
Enter a number: 10.4
Positive Number found
Example
# Python program to check voting eligibility
age = int(input("Enter your age: "))
if age >=18:
print("Eligible for Voting")
else:
print("Not eligible for voting")
Output –
Enter your age: 45
Eligible for Voting
Another example where if statements can be used is when we want to categorize the price of an item.
Example 3
# Python program to indicate toy price using if…elif…else
toy_price = 380
if toy_price > 500:
print('Toy price is Greater than Rs 500')
elif toy_price < 500:
print('Toy price is Less than Rs 500')
else:
print('Toy price is Rs 500')
Output
Toy price is Less than Rs 500
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