[Python] Remove Elements from List [del, remove, pop, clear]

This article shows how to remove Elements from List in Python.

del : Remove elements by index or slice

"del" statement can be used to delete elements from list by index or slice specification.

del List[ index ]
del List[ start index : end index ]

In the following sections, I show example code.

Remove elements by index

Specify element by index and remove from list.

### Remove elements by index
fruits = ["Apple", "Banana", "Orange", "Grape", "Mango", "Lemon", "Peach", "Plum"]
print(fruits)
# ['Apple', 'Banana', 'Orange', 'Grape', 'Mango', 'Lemon', 'Peach', 'Plum']

del fruits[1]
print(fruits)
# ['Apple', 'Orange', 'Grape', 'Mango', 'Lemon', 'Peach', 'Plum']

del fruits[-1]
print(fruits)
# ['Apple', 'Orange', 'Grape', 'Mango', 'Lemon', 'Peach']

del fruits[3]
print(fruits)
# ['Apple', 'Orange', 'Grape', 'Lemon', 'Peach']

Remove elements by slice

Multiple elements can also be removed with "del" statement.

Specify elements by slice and remove from list.

### Remove elements by slice
fruits = ["Apple", "Banana", "Orange", "Grape", "Mango", "Lemon", "Peach", "Plum"]
print(fruits)
# ['Apple', 'Banana', 'Orange', 'Grape', 'Mango', 'Lemon', 'Peach', 'Plum']

del fruits[2:4]
print(fruits)
# ['Apple', 'Banana', 'Mango', 'Lemon', 'Peach', 'Plum']

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remove() : Remove an element by value

By using remove() method, the specified value is searched for and the first element is removed from list.

List.remove( value )

In the following sections, I show example code.

If there is only one element to be deleted.

fruits = ["Apple", "Banana", "Orange", "Grape", "Mango", "Lemon", "Peach", "Plum"]
print(fruits)
# ['Apple', 'Banana', 'Orange', 'Grape', 'Mango', 'Lemon', 'Peach', 'Plum']

fruits.remove("Banana")
print(fruits)
# ['Apple', 'Orange', 'Grape', 'Mango', 'Lemon', 'Peach', 'Plum']

If there are multiple elements to be deleted.

fruits = ["Apple", "Banana", "Orange", "Apple", "Grape", "Mango", "Lemon", "Apple", "Peach", "Plum"]
print(fruits)
# ['Apple', 'Banana', 'Orange', 'Apple', 'Grape', 'Mango', 'Lemon', 'Apple', 'Peach', 'Plum']

fruits.remove("Apple")
print(fruits)
# ['Banana', 'Orange', 'Apple', 'Grape', 'Mango', 'Lemon', 'Apple', 'Peach', 'Plum']

By using remove() method, only the first element is removed if there are multiple elements of the same type.

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pop() : Remove an element by index and get its value

By using pop() method, the element at the specified position is deleted and its value is retrieved.

List.pop( index )

Here is an example code.

fruits = ["Apple", "Banana", "Orange", "Grape", "Mango", "Lemon", "Peach", "Plum"]
print(fruits)
# ['Apple', 'Banana', 'Orange', 'Grape', 'Mango', 'Lemon', 'Peach', 'Plum']

value = fruits.pop(2)
print(value)
# Orange

print(fruits)
# ['Apple', 'Banana', 'Grape', 'Mango', 'Lemon', 'Peach', 'Plum']

 

value = fruits.pop()
print(value)
# Plum

print(fruits)
# ['Apple', 'Banana', 'Grape', 'Mango', 'Lemon', 'Peach']

If no index is specified, the last element of the list is deleted.

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clear() : Remove all elements

By using clear() method, all elements are removed.

List.clear( )

Here is an example code.

fruits = ["Apple", "Banana", "Orange", "Grape", "Mango", "Lemon", "Peach", "Plum"]
print(fruits)
# ['Apple', 'Banana', 'Orange', 'Grape', 'Mango', 'Lemon', 'Peach', 'Plum']

fruits.clear()

print(fruits)
# []

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