Extend AND Append :
APPEND
Append is used to add one element at the end of the existing list.For example if we have two list named li and x such that so it will increment the length of existing list by +1 only .Sample code for append to understand better
>>> li=[1,2,3]
>>> x=[4,5,6]
>>> li.append(x)
>>> li
[1, 2, 3, [4, 5, 6]]
>>> len(li)
4
Python Code snippet of the above code
Python Code snippet of the above code
Extend
Extend is used when we have to merge two list extend will iterate through the passed argument and add them to the existing list at a index of i+1,i+2,i+3…(where n is existing length of the list)
Sample code for append to understand better
>>> li=[1,2,3]
>>> x=[4,5,6]
>>> li.extend(x)
>>> li
[1, 2, 3, 4, 5, 6]
>>> len(li)
6
>>>
Python Code snippet of the above code
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