How to convert String values in a dictionary to a list in python?

Question

I am trying to read contents from file which has the following content

XXX f,d,c,e
DDD f,d,c,g
ZZZ f,d,h,g
KKK c,c,d,d

I have to read this as a dictionary in the below format. The below should be my final output -

{'XXX': ['f','d','c','e'], 'DDD': ['f','d','c','g'], 'ZZZ': ['f','d','h','g'], 'KKK': ['c','c','d','d']}

But I managed to read it as dictionary in the below format. But the values are not in list format. Current output

{'XXX': 'f,d,c,e', 'DDD': 'f,d,c,g', 'ZZZ': 'f,d,h,g', 'KKK': 'c,c,d,d'}

Can someone help to convert the values as list or directly read it as list from file?

Do you have some code to show what you have already tried? Please add your code. — Thomas Flinkow
– Thomas Flinkow, Commented Aug 2, 2018 at 7:49
But the value of the desired output dict is not a list of strings. — Hermis14
– Hermis14, Commented Aug 2, 2018 at 7:52

Rakesh · Accepted Answer · 2018-08-02 07:46:20Z

5

Use str.split(",")

Ex:

d = {'XXX': 'f,d,c,e', 'DDD': 'f,d,c,g', 'ZZZ': 'f,d,h,g', 'KKK': 'c,c,d,d'}
d = {k: v.split(",") for k,v in d.items()}
print(d)

Output:

{'XXX': ['f', 'd', 'c', 'e'], 'ZZZ': ['f', 'd', 'h', 'g'], 'KKK': ['c', 'c', 'd', 'd'], 'DDD': ['f', 'd', 'c', 'g']}

answered Aug 2, 2018 at 7:46

Rakesh

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1 Comment

Arvind Ravi Over a year ago

Thanks Rakesh for your help. I got the output.

Mehrdad Pedramfar · Accepted Answer · 2018-08-02 07:52:45Z

2

Try this in one line:

a = '''XXX f,d,c,e
    DDD f,d,c,g
    ZZZ f,d,h,g
    KKK c,c,d,d'''

{k:v.split(',') for k,v in {l.split()[0]:l.split()[1] for l in a.split('\n')}.items()}

the out put:

{'XXX': ['f', 'd', 'c', 'e'],
 'DDD': ['f', 'd', 'c', 'g'],
 'ZZZ': ['f', 'd', 'h', 'g'],
 'KKK': ['c', 'c', 'd', 'd']}

answered Aug 2, 2018 at 7:52

Mehrdad Pedramfar

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