Required output

Question

I have a list like this

[[{1:"one",2:"two"},{1:"one"}],[{3:"three",4:"four"},{3:"three"}]]

required output:

[{1:"one",2:"two"},{1:"one"},{3:"three",4:"four"},{3:"three"}]

Can someone please tell me how to proceed?

This is called flattening a list. See https://stackoverflow.com/questions/952914/making-a-flat-list-out-of-list-of-lists-in-python, https://stackoverflow.com/questions/406121/flattening-a-shallow-list-in-python?noredirect=1&lq=1. A good answer is `[item for sublist in L for item in sublist]` — Stuart, Jun 13 '17 at 22:27

Pedro von Hertwig Batista · Answer 1 · 2017-06-13T22:28:06.147

1

Iterate over the list's lists to add that to another list.

list_1 = [[{1:"one",2:"two"},{1:"one"}],[{3:"three",4:"four"},{3:"three"}]]
list_2 = []
for list in list_1:
    for dictionary in list:
        list_2.append(dictionary)

print(list_2)  # [{1: 'one', 2: 'two'}, {1: 'one'}, {3: 'three', 4: 'four'}, {3: 'three'}]

edited Jun 13 '17 at 22:28

answered Jun 13 '17 at 22:23

Pedro von Hertwig Batista

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nope! get this as output : [{u'1': u'one', u'2': u'two'}, {u'1': u'one'}] – Arohi Gupta Jun 13 '17 at 22:27
@ArohiGupta my mistake; I edited the answer, try again. – Pedro von Hertwig Batista Jun 13 '17 at 22:28
Any idea how do i remove the "unicode" from the output? – Arohi Gupta Jun 13 '17 at 23:33
@ArohiGupta I don't get "unicode", maybe we're using different versions of Python. In any case, I'd recommend you to accept the answer if it solves your original question and start a new question, since this is a different issue. – Pedro von Hertwig Batista Jun 13 '17 at 23:36

Ajax1234 · Answer 2 · 2017-06-13T22:32:57.970

0

You can try this:

from itertools import chain

l = [[{1:"one",2:"two"},{1:"one"}],[{3:"three",4:"four"},{3:"three"}]]

new_l = list(chain(*l))

Final Output:

[{1: 'one', 2: 'two'}, {1: 'one'}, {3: 'three', 4: 'four'}, {3: 'three'}]

edited Jun 13 '17 at 22:32

answered Jun 13 '17 at 22:24

Ajax1234

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Required output

2 Answers2