Posted On: Feb 22, 2018
In the append() method the argument is added as a single element to the end. So, the length of the list increases by one.
A = [1, 2]; B = [3, 4] A.append(B)
Output: [1, 2, [3, 4]]
In the extend() method, each element in the object is iterated and added to the list.
A = [1, 2]; B = [3, 4] A.extend(B)
Output: [1, 2, 3, 4]
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