Python – Substitute prefix part of List

When it is required to substitute prefix part of a list, the ‘len’ method and the ‘:’ operator is used.

Example

Below is a demonstration of the same −

my_list_1 = [15, 44, 82] my_list_2 = [29, 77, 19, 44, 26, 18] print("The first list is : " ) print(my_list_1) print("The second list is : " ) print(my_list_2) print("The first list after sorting is :") my_list_1.sort() print(my_list_1) print("The first list after sorting is :") my_list_2.sort() print(my_list_2) my_result = my_list_1 + my_list_2[len(my_list_1) : ] print("The resultant list is : ") print(my_result)

Output

The first list is : [15, 44, 82] The second list is : [29, 77, 19, 44, 26, 18] The first list after sorting is : [15, 44, 82] The first list after sorting is : [18, 19, 26, 29, 44, 77] The resultant list is : [15, 44, 82, 29, 44, 77]

Explanation

• Two lists are defined and are displayed on the console.

• They are sorted and displayed on the console.

• Both the lists are added, wherein in the second list, a specific length of the list is taken.

• This result is assigned to a variable.

• This is displayed as the output on the console.