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 83. 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 85. 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 17. 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 PythonList Methods in Python | Set 1 (in, not in, len(), min(), max()…)
M
Manjeet SinghImprove Next ArticleWhat Is Difference Between Del, Remove and Pop on Python Lists? Please Login to comment...