Python - unpack list of lists

Question

What is the cleanest way to implement the following:

list = [list1, list2, ...]
return [*list1, *list2, ...]

It looks like this syntax will be available in Python 3.5. In the meantime, what is your solution?

score 31 · Accepted Answer · answered Jul 25 '15 at 21:35

31

This is commonly written as:

[x for l in list for x in l]

answered Jul 25 '15 at 21:35

Lynn

3

I have never seen this before, so +1, but I'm not really sure what's going on... – ArtOfWarfare Jul 25 '15 at 21:39
Check out list comprehensions in python. – Dor-Ron Jul 25 '15 at 21:41

1 Answers1