Easy & Lazy way to flatten a python list

Posted on 13 Nov, 2021

from itertools import chain
myList = [["bhupesh", 1], ["amanda", 2], ["robin", 3]]

print(list(chain.from_iterable(myList)))
# ['bhupesh', 1, 'amanda', 2, 'robin', 3]

itertools.chain.from_iterable would work lazily, i.e no work done unless you loop over the returned iterator