Sep 20, 2010 · If you want to add the elements in a list (list2) to the end of other list (list), then you can use the ...

You could also use the list.extend() method in order to add a list to the end of another one: listone = [1,2,3] listtwo = [4,5,6] listone.extend(listtwo) If you want to keep the original list intact, you …

Jun 20, 2019 · Extending a list. Using the list classes extend method, you can do a copy of the elements from one list onto another. However this will cause extra memory usage, which …

Jan 1, 2021 · append() adds a single element to a list. extend() adds many elements to a list. extend() accepts any iterable object, not just lists. But it's most common to pass it a list. Once …

Sep 10, 2013 · # Pythonic approach leveraging map, operator.add for element-wise addition. import operator third6 = list(map(operator.add, first, second)) # v7: Using list comprehension …

Aug 23, 2020 · Here's the timeit comparison of all the answers with list of 1000 elements on Python 3.9.1 and Python 2.7.16. Answers are listed in the order of performance for both the …

Aug 3, 2017 · The efficient way to do this is with extend() method of list class. It takes an iteratable as an argument and appends its elements into the list. b.extend(a) Other approach …

list.append(x) Add an item to the end of the list; equivalent to a[len(a):] = [x]. list.extend(L) - Extend the list by appending all the items in the given list; equivalent to a[len(a):] = L. …

list.insert(index, value) Insert an item at a given position. The first argument is the index of the element before which to insert, so xs.insert(0, x) inserts at the front of the list, and …

Python lists are not immutable so you can't do that with those, and moreover, everything else can be mutable. While an OCaml list contains immutable objects, in Python the contents of …