Looking for a list of values in a dict and retuning its key

Question

I have this dict:

d = { 'car'  : ["ford", "fiat", "vw"],
      'bike' : ["fant","xorg","niky"]}

And I am getting 3 string input from user:

a=str(input())
b=str(input())
c=str(input())

If the inputs are:

ford
fiat
vw

I should get "car" as output

I am trying something like this:

for a,b,c in d.values():
    print(d.keys())

but its not working, of course as it will print all d.keys no matter what the inputs are. Can anyone help me, please?

Sidenote: `str(input())` is redundant. `input()` already returns a `str`. — wjandrea, Aug 25 '21 at 01:53

U13-Forward · Accepted Answer · 2021-08-25T01:59:43.373

2

Try a list comprehension:

print(next((k for k, v in d.items() if v == [a, b, c])))

Example output:

ford
fiat
vw
car

Note: inputs are always strings, so str(...) is not required, you could just use:

a = input()
b = input()
c = input()

edited Aug 25 '21 at 01:59

answered Aug 25 '21 at 01:51

U13-Forward

69,221
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Thanks man. Just one question: How can I change the output from ´ ['car'] to car (without [ and ')? – merchmallow Aug 25 '21 at 01:58

score 0 · Answer 2 · answered Aug 25 '21 at 01:55

0

d = { 'car'  : ["ford", "fiat", "vw"],
      'bike' : ["fant","xorg","niky"]}
a=str(input())
for k, v in d.items():
    if a in v:
        print(k)
        break

answered Aug 25 '21 at 01:55

moumou liu

66
6

moumou Thanks. Prob with your answer is that sometimes a we can have one of the three values with more than 1 key. I needed the the exactly 3 values to match a key as @U12-Forward did. Thank you very much for your help tho xD – merchmallow Aug 25 '21 at 02:05

Looking for a list of values in a dict and retuning its key

2 Answers2