How do I convert this dictionary into a list?

Question

Say I have dictionaries like this :

{'AccountNum': '873627867348', 'userID': 'abc'}
{'AccountNum': '873627867348', 'userID': 'def'}
{'AccountNum': '038683828978', 'userID': 'ghi'}
{'AccountNum': '581889263266', 'userID': 'jkl'}
{'AccountNum': '581889263266', 'userID': 'mno'}
{'AccountNum': '581889263266', 'userID': 'pqr'}

I need to convert this into a list such that both the keys and values are printed. Actually I am using Django as the web framework. I need to return a list and render it to my template page, where I will be displaying the user id and accountnum in the rows of the table.

preferred output sample:

['AccountNum', '873627867348', 'userID', 'abc']

When I tried converting the above dict into list.. I got an output like this : ['AccountNum', 'userID'] ..but I don't see any values here — Siddharth Singh, Feb 13 '18 at 13:16
Maybe list with tuples is the only way to get both keys and values ? — Siddharth Singh, Feb 13 '18 at 13:17
Possible duplicate of [Converting Python Dictionary to List](https://stackoverflow.com/questions/1679384/converting-python-dictionary-to-list) — Georgy, Feb 13 '18 at 14:13

Skandix · Accepted Answer · 2018-02-27T10:14:16.380

If you want to get the keys as list, use:

list( {'AccountNum': '873627867348', 'userID': 'abc'} )
#['AccountNum', 'userID']

for the values:

list( v for k, v in {'AccountNum': '873627867348', 'userID': 'abc'}.items() )
#['873627867348', 'abc']

for both:

list( {'AccountNum': '873627867348', 'userID': 'abc'}.items() )
#[('AccountNum', '873627867348'), ('userID', 'abc')]

if you don't like it with tuple here an approach with more then one line:

def dictToList(d):
    l = []
    for k, v in  d.items():
        l.append(k)
        l.append(v)
    return l
dictToList({'AccountNum': '873627867348', 'userID': 'abc'})
# ['AccountNum', '873627867348', 'userID', 'abc']

Thanks for the answer .. The last one was what I was looking for — Siddharth Singh, Feb 13 '18 at 13:32

khelili miliana · Answer 2 · 2018-02-27T10:34:40.067

0

How about this using list comprehension:

[a for a in(b for a in data.items() for b in a)]

Input :

data={'AccountNum': '873627867348', 'userID': 'abc'}

Output :

['userID', 'abc', 'AccountNum', '873627867348']

You can also use Regular expression,

import re
data={'AccountNum': '873627867348', 'userID': 'abc'}

re.findall(r"\'(.*?)\'", str(data) )

Output :

['userID', 'abc', 'AccountNum', '873627867348']

edited Feb 27 '18 at 10:34

answered Feb 27 '18 at 10:26

khelili miliana

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How do I convert this dictionary into a list?

2 Answers2