Jun 11, 20201 min read

List Methods in Python

In this post, we will learn about the list Methods.

The remove() method searches for the given element in the list and remove first matching element.

Syntax :-

list.remove(element)

Remove() Parameters:-

The remove() method takes a single element as an argument and remove it from the list.
If the element doesn't exits, it throws ValueError:list.remove(x): X not in list exception.

Return value from remove():

The remove() doesn't return any value.

Example:-

list1=[10,20,30,40]
print(list1)
list1.remove(30)
print(list1)

Output:

[10, 20, 30, 40]
[10, 20, 40]

The pop() method removes and returns the element at the given index from the list.

The syntax of the pop() method is:-

list.pop(index)

pop() parameters:

The pop() method takes a single argument(index).
The argument passed to the method is optional. If not passed, the default index -1 is passed as an argument(index of the last item).
If the index passed to the method is not in rang, it throws IndexError:pop index out of range exception.

Return Value from pop():

The pop() method returns the item present at the given index. This item is also removed

from the list.

Example:

list1 = [10,20,30,40]
print(list1)
list1.pop(3)
print(list1)

Output:

[10, 20, 30, 40]
[10, 20, 30]

The clear() method removes all items from the list.

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:

list1 = [1,2,3,4]
print(list1)
list1.clear()
print(list1)

Output:

[1, 2, 3, 4]
[]

Happy Coding!

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