Python: Append A List at the Start of Another List

If you want to append a list at the start (beginning) of another list in Python then you can do that in many ways, let's take a look at a few.

Example 1: Using extend() function

nos_list_1 = [2, 4, 0]
nos_list_2 = [-1, -2, -7] # append this list to list_1

nos_list_2.extend(nos_list_1)
print(nos_list_2)

Output:

[-1, -2, -7, 2, 4, 0]

Example 2: Using + Operator

nos_list_1 = [2, 4, 0]
nos_list_2 = [-1, -2, -7]

appended_list = nos_list_2 + nos_list_1
print(appended_list)

Output:

[-1, -2, -7, 2, 4, 0]

Example 3: Using Unpacking

nos_list_1 = [2, 4, 0]
nos_list_2 = [-1, -2, -7]

appended_list = [*nos_list_2, *nos_list_1]
print(appended_list)

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