Python List Comprehension Using If-Else

List comprehension with if-else is used to create lists with conditional logic concisely. It allows elements to be filtered or modified while generating the new list.

Using if-else

This method applies an if-else condition directly inside the list comprehension. Each element is checked and a corresponding value is added to the new list.

['Odd', 'Even', 'Odd', 'Even', 'Odd']

Explanation:

• Loop iterates through each number in a and n % 2 == 0 checks whether the number is even.
• 'Even' is added for even numbers, otherwise 'Odd'.

Using Only if Condition

This method adds elements only when the condition is true. Elements that do not satisfy the condition are skipped.

[2, 4]

Explanation: loop iterates through each element in a and if n % 2 == 0 filters only even numbers.

Nested if-else

Nested if-else conditions are used to handle multiple conditions inside a single list comprehension.

['Other', 'Divisible by 2', 'Divisible by 3', 'Divisible by 2', 'Other']

Explanation:

• Numbers are checked for divisibility by 2. If not divisible by 2, divisibility by 3 is checked.
• 'Other' is added when neither condition is true.

Related Articles:

• List Comprehension
• If Else Statements
• Nested if-else