Скачать или смотреть Python Lists Methods 🥳| All Python Lists Codes in Discription

Here is a list of the common methods available for lists in Python along with example code for each:

1. append()

Adds an item to the end of the list.

lst = [1, 2, 3]
lst.append(4)
print(lst) # Output: [1, 2, 3, 4]

2. extend()

Adds all elements of an iterable (e.g., another list) to the end of the list.

lst = [1, 2, 3]
lst.extend([4, 5])
print(lst) # Output: [1, 2, 3, 4, 5]

3. insert()

Inserts an item at a given position in the list.

lst = [1, 2, 3]
lst.insert(1, 'a')
print(lst) # Output: [1, 'a', 2, 3]

4. remove()

Removes the first occurrence of a specified value.

lst = [1, 2, 3, 2]
lst.remove(2)
print(lst) # Output: [1, 3, 2]

5. pop()

Removes and returns the item at the given index (defaults to the last item).

lst = [1, 2, 3]
item = lst.pop(1)
print(item) # Output: 2
print(lst) # Output: [1, 3]

6. clear()

Removes all items from the list.

lst = [1, 2, 3]
lst.clear()
print(lst) # Output: []

7. index()

Returns the index of the first occurrence of a specified value.

lst = [1, 2, 3, 2]
idx = lst.index(2)
print(idx) # Output: 1

8. count()

Returns the number of occurrences of a specified value.

lst = [1, 2, 2, 3, 2]
count = lst.count(2)
print(count) # Output: 3

9. sort()

Sorts the list in ascending order (can take optional arguments).

lst = [3, 1, 2]
lst.sort()
print(lst) # Output: [1, 2, 3]

10. reverse()

Reverses the order of elements in the list.

lst = [1, 2, 3]
lst.reverse()
print(lst) # Output: [3, 2, 1]

11. copy()

Returns a shallow copy of the list.

lst = [1, 2, 3]
new_lst = lst.copy()
print(new_lst) # Output: [1, 2, 3]

12. copy() (Alternative)

lst = [1, 2, 3]
new_lst = lst[:]
print(new_lst) # Output: [1, 2, 3]

13. del

Removes items from a list using slice or index (not a method, but commonly used for deletion).

lst = [1, 2, 3]
del lst[1]
print(lst) # Output: [1, 3]

14. + (Concatenation)

Concatenates two or more lists.

lst1 = [1, 2]
lst2 = [3, 4]
result = lst1 + lst2
print(result) # Output: [1, 2, 3, 4]

15. * (Repetition)

Repeats the list multiple times.

lst = [1, 2]
result = lst * 3
print(result) # Output: [1, 2, 1, 2, 1, 2]

16. min()

Returns the smallest item in the list.

lst = [3, 1, 2]
print(min(lst)) # Output: 1

17. max()

Returns the largest item in the list.

lst = [3, 1, 2]
print(max(lst)) # Output: 3

18. sum()

Returns the sum of the items in the list.

lst = [1, 2, 3]
print(sum(lst)) # Output: 6

19. any()

Returns True if any element of the list is true.

lst = [0, 1, 2]
print(any(lst)) # Output: True

20. all()

Returns True if all elements of the list are true.

lst = [1, 2, 3]
print(all(lst)) # Output: True

21. list()

Converts an iterable into a list.

iterable = 'abc'
lst = list(iterable)
print(lst) # Output: ['a', 'b', 'c']

22. sorted()

Returns a new list that is a sorted version of the original list (does not modify the original list).

lst = [3, 1, 2]
sorted_lst = sorted(lst)
print(sorted_lst) # Output: [1, 2, 3]


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These are the most commonly used methods for list manipulation in Python.