Merging and updating lists

List merging can be done in two ways in Python. First, we can use the traditional + operator, which we used previously to concatenate two strings. It does the same when used on list object types. The other way to achieve this would be by using the extend method, which takes the new list as an argument to be merged with the existing list. This is shown in the following example:

To update an element in the list, we can access its index and add the updated value for any element that we wish to update. For example, if we want to have the string Hello as the 0th element of the list, this can be achieved by assigning the 0th element to the Hello value as merged[0]="hello":