How to create a dictionary from two list in python

Question

Hello guys i have two list in my code like this

other_concords = ['a','b','c']
leamanyi_concords = ['fruit','drink','snack']

temp_dic = {
              'a':['fruit','drink','snack'],
              'b':['fruit','drink','snack'],
              'c':['fruit','drink','snack']
            }

Is it possible to insert items in my temp_dic using a loop and it appears like this when i output temp_dic?

AGN Gazer · Answer 1 · 2018-02-08T01:58:51.240

3

temp_dic = {v: list(leamanyi_concords) for v in other_concords}

edited Feb 08 '18 at 01:58

answered Feb 08 '18 at 01:47

AGN Gazer

7,569
2
21
43

jpp · Answer 2 · 2018-02-08T01:53:40.257

1

Use dict.fromkeys if you don't mind your dictionary pointing to the same list.

temp_dic = dict.fromkeys(other_concords, leamanyi_concords)

# {'a': ['fruit', 'drink', 'snack'],
#  'b': ['fruit', 'drink', 'snack'],
#  'c': ['fruit', 'drink', 'snack']}

edited Feb 08 '18 at 01:53

answered Feb 08 '18 at 01:42

jpp

147,904
31
244
302

Generally not a good idea to use `dict.fromkeys` with some mutable arg. See https://stackoverflow.com/questions/15516413/dict-fromkeys-all-point-to-same-list. It has come back to bite me before – Brad Solomon Feb 08 '18 at 01:58
@BradSolomon - it really depends. maybe the intention is that the lists should be linked? I did add a disclaimer. – jpp Feb 08 '18 at 02:03

How to create a dictionary from two list in python

2 Answers2