Flatten a list in python

Question

I have a list like this:

[[(video1,4)], [(video2,5),(video3,8)], [(video1,5)], [(video5, 7), (video6,9)]...]

each item in this list may con

Answer 1

To flatten one level, you can use itertools.chain.from_iterable():

flattened_list = itertools.chain.from_iterable(my_list)