To append element in list Python has built-in methods for appending or adding elements to a list. We can also append one list to another.
1 . append(element)
This function adds the element at the end of the list.
lst = ["Chocolate", "Strawberry", "Pistachio", "Blue moon"]
print('Current names List is:', lst)
new_value = input("Please enter a name:\n")
#append() method
lst.append(new_value)
print('Updated name List is:', lst) Output:
Current names List is: [‘Chocolate’, ‘Strawberry’, ‘Pistachio’, ‘Blue moon’]
Please enter a name:
Butterscotch
Updated name List is: [‘Chocolate’, ‘Strawberry’, ‘Pistachio’, ‘Blue moon’, ‘Butterscotch’]
2. insert(index, element)
The insert() function inserts elements at the specified index point. It is useful when we need to insert an element at a specific location.
lst = [5, 10 , 15 , 20, 30, 35 , 40]
print('Current Numbers List: ', lst)
lst.insert(4, 25)
print("The new list is: ",lst)
num = int(input("enter a number to add to list:\n"))
index = int(input('enter the index to add the number:\n'))
#insert() method
lst.insert(index, num)
print('Updated Numbers List:', lst) Output:
Current Numbers List: [5, 10, 15, 20, 30, 35, 40]
The new list is: [5, 10, 15, 20, 25, 30, 35, 40]
enter a number to add to list:
45
enter the index to add the number:
8
Updated Numbers List: [5, 10, 15, 20, 25, 30, 35, 40, 45]
3. extend(iterable)
The extends() function is used to add the iterable elements to the list. It accepts iterable object as an argument.
lst = [15,20,35,40]
#extend() method in list
lst.extend(["67.10", "75.92" ])
print(lst)
#extending with tuples
lst.extend((80, 90))
print(lst)
#extending with string
lst.extend("SimilarGeeks")
print(lst) Output:
[15, 20, 35, 40, ‘67.10’, ‘75.92’]
[15, 20, 35, 40, ‘67.10’, ‘75.92’, 80, 90]
[15, 20, 35, 40, ‘67.10’, ‘75.92’, 80, 90, ‘S’, ‘i’, ‘m’, ‘i’, ‘l’, ‘a’, ‘r’, ‘G’, ‘e’, ‘e’, ‘k’, ‘s’]
Also Read:
Convert list to string in python
