flatten a list of list python

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Giorgia
14 Feb 2020
1flattened = [val for sublist in list_of_lists for val in sublist]
source
Juan José
29 Apr 2016
1flat_list = [item for sublist in l for item in sublist]
2
3#which is equivalent to this 
4flat_list = []
5for sublist in l:
6    for item in sublist:
7        flat_list.append(item)
source
Alex
31 Jan 2020
1# idiomatic python
2
3# using itertools
4import itertools
5
6list_of_list = [[1, 2, 3], [4, 5], [6]]
7chain = itertools.chain(*images)
8
9flattened_list = list(chain)
10# [1, 2, 3, 4, 5, 6]
source
Simon
13 Sep 2016
1flat_list = []
2for sublist in l:
3    for item in sublist:
4        flat_list.append(item)
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