In Python, we get a built-in sequence called list. We can call standard functions like append() and extend() on a list.
We call append() method to add an item to the end of a list.
We call extend() method to add another list to the end of a list.
In append() we have to add items one by one. But in extend() multiple items from another list can be added at the same time.Read the full book at www.amazon.com