Python List clear()

 prime_numbers = [2, 3, 5, 7, 9, 11] # remove all elements prime_numbers.clear() 
# Updated prime_numbers List print('List after clear():', prime_numbers)
 # Output: List after clear(): []

Syntax of List clear()

The syntax of clear() method is:

 list.clear()

clear() Parameters

The clear() method doesn't take any parameters.

Return Value from clear()

The clear() method only empties the given list. It doesn't return any value.

Example 1: Working of clear() method

 # Defining a list list = [{1, 2}, ('a'), ['1.1', '2.2']] 
# clearing the list list.clear()
 print('List:', list)

Output

 List: []

Note: If you are using Python 2 or Python 3.2 and below, you cannot use the clear() method. You can use the del operator instead.

Example 2: Emptying the List Using del

 # Defining a list list = [{1, 2}, ('a'), ['1.1', '2.2']] 
# clearing the list del list[:]
 print('List:', list)

Output

 List: []

To learn more about the del operator, visit Python del Statement.

Also Read:

• Python List remove()
• Python List copy()