Cara menggunakan remove() method in python

In Python, use list methods clear(), pop(), and remove() to remove items (elements) from a list. It is also possible to delete items using del statement by specifying a position or range with an index or slice.

See the following article for adding items to the list.

In this tutorial, we will learn about the Python List remove() method with the help of examples.

The remove() method removes the first matching element (which is passed as an argument) from the list.

Example

# create a list prime_numbers = [2, 3, 5, 7, 9, 11]

# remove 9 from the list prime_numbers.remove(9)

# Updated prime_numbers List print('Updated List: ', prime_numbers) # Output: Updated List: [2, 3, 5, 7, 11]

List Methods in Python | Set 2 (del, remove(), sort(), insert(), pop(), extend()…)

Some of the list methods are mentioned in set 1 below

List Methods in Python | Set 1 (in, not in, len(), min(), max()…)

More methods are discussed in this article.

1. del[a : b] :- This method deletes all the elements in range starting from index ‘a’ till ‘b’ mentioned in arguments.

2. pop() :- This method deletes the element at the position mentioned in its arguments.

# Python code to demonstrate the working of

# del and pop()

# initializing list

lis = [2, 1, 3, 5, 4, 3, 8]

# using del to delete elements from pos. 2 to 5

# deletes 3,5,4

del lis[2 : 5]

# displaying list after deleting

print ("List elements after deleting are : ",end="")

for i in range(0, len(lis)):

print(lis[i], end=" ")

print("\r")

# using pop() to delete element at pos 2

# deletes 3

lis.pop(2)

# displaying list after popping

print ("List elements after popping are : ", end="")

for i in range(0, len(lis)):

print(lis[i], end=" ")

Output:

List elements after deleting are : 2 1 3 8 List elements after popping are : 2 1 8

3. insert(a, x) :- This function inserts an element at the position mentioned in its arguments. It takes 2 arguments, position and element to be added at respective position.

4. remove() :- This function is used to delete the first occurrence of number mentioned in its arguments.

# Python code to demonstrate the working of

# insert() and remove()

# initializing list

lis = [2, 1, 3, 5, 3, 8]

# using insert() to insert 4 at 3rd pos

lis.insert(3, 4)

# displaying list after inserting

print("List elements after inserting 4 are : ", end="")

for i in range(0, len(lis)):

print(lis[i], end=" ")

print("\r")

# using remove() to remove first occurrence of 3

# removes 3 at pos 2

lis.remove(3)

# displaying list after removing

print ("List elements after removing are : ", end="")

for i in range(0, len(lis)):

print(lis[i], end=" ")

Output:

List elements after inserting 4 are : 2 1 3 4 5 3 8 List elements after removing are : 2 1 4 5 3 8

5. sort() :- This function sorts the list in increasing order.

6. reverse() :- This function reverses the elements of list.

# Python code to demonstrate the working of

# sort() and reverse()

# initializing list

lis = [2, 1, 3, 5, 3, 8]

# using sort() to sort the list

lis.sort()

# displaying list after sorting

print ("List elements after sorting are : ", end="")

for i in range(0, len(lis)):

print(lis[i], end=" ")

print("\r")

# using reverse() to reverse the list

lis.reverse()

# displaying list after reversing

print ("List elements after reversing are : ", end="")

for i in range(0, len(lis)):

print(lis[i], end=" ")

Output:

List elements after sorting are : 1 2 3 3 5 8 List elements after reversing are : 8 5 3 3 2 1

7. extend(b) :- This function is used to extend the list with the elements present in another list. This function takes another list as its argument.

8. clear() :- This function is used to erase all the elements of list. After this operation, list becomes empty.

# Python code to demonstrate the working of

# extend() and clear()

# initializing list 1

lis1 = [2, 1, 3, 5]

# initializing list 1

lis2 = [6, 4, 3]

# using extend() to add elements of lis2 in lis1

lis1.extend(lis2)

# displaying list after sorting

print ("List elements after extending are : ", end="")

for i in range(0, len(lis1)):

print(lis1[i], end=" ")

print ("\r")

# using clear() to delete all lis1 contents

lis1.clear()

# displaying list after clearing

print ("List elements after clearing are : ", end="")

for i in range(0, len(lis1)):

print(lis1[i], end=" ")

Output:

List elements after extending are : 2 1 3 5 6 4 3 List elements after clearing are :

Related articles:
List methods in Python
List Methods in Python | Set 1 (in, not in, len(), min(), max()…)

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Article Tags :

Python

School Programming

python-list

python-list-functions

Practice Tags :

python-list

How to remove an element from a list in Python

Python provides the following methods to remove one or multiple elements. We can delete the elements using the del keyword by specifying the index position. Let's understand the following methods.

• remove()
• pop()
• clear()
• del
• List Comprehension - If specified condition is matched.

The remove() method

The remove() method is used to remove the specified value from the list. It accepts the item value as an argument. Let's understand the following example.

Example -

Output:

The list is: ['Joseph', 'Bob', 'Charlie', 'Bob', 'Dave'] After removing element: ['Bob', 'Charlie', 'Bob', 'Dave']

If the list contains more than one item of the same name, it removes that item's first occurrence.

Example -

Output:

The list is: ['Joseph', 'Bob', 'Charlie', 'Bob', 'Dave'] After removing element: ['Joseph', 'Charlie', 'Bob', 'Dave']

The pop() method

The pop() method removes the item at the specified index position. If we have not specified the index position, then it removes the last item from the list. Let's understand the following example.

Example -

Output:

The list is: ['Joseph', 'Bob', 'Charlie', 'Bob', 'Dave'] After removing element: ['Joseph', 'Bob', 'Charlie', 'Dave'] After removing element: ['Joseph', 'Bob', 'Charlie']

We can also specify the negative index position. The index -1 represents the last item of the list.

Example -

Output:

The list is: ['Joseph', 'Bob', 'Charlie', 'Bob', 'Dave'] After removing element: ['Joseph', 'Bob', 'Charlie', 'Dave']

The clear() method

The clear() method removes all items from the list. It returns the empty list. Let's understand the following example.

Example -

Output:

[10, 20, 30, 40, 50, 60] []

The del statement

We can remove the list item using the del keyword. It deletes the specified index item. Let's understand the following example.

Example -

Output:

[10, 20, 30, 40, 50, 60] [10, 20, 30, 40, 50] [10, 20, 30, 40]

It can delete the entire list.

Output:

Traceback (most recent call last): File "C:/Users/DEVANSH SHARMA/PycharmProjects/Practice Python/first.py", line 14, in print(list1) NameError: name 'list1' is not defined

We can also delete the multiple items from the list using the del with the slice operator. Let's understand the following example.

Example -

Output:

[10, 20, 30, 40, 50, 60] [10, 40, 50, 60] [60] []

Using List Comprehension

The list comprehension is slightly different way to remove the item from the list. It removes those items which satisfy the given condition. For example - To remove the even number from the given list, we define the condition as i % 2 which will give the reminder 2 and it will remove those items that's reminder is 2.

Let's understand the following example.

Example -

Output:

[20, 34, 40, 60] [11, 45]

Next TopicHow to Round number in Python

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How to remove item from list python?

In this python tutorial, we look at all the different methods you could use to remove item from list in python. We also break down which methods are best suited for each use case.