How to add a list as value in dictionary Python

Question

I'm trying to create a dictionary where keys are strings and values are lists. Something like that

l1 = ['a', 'b', 'c']

and I want to add lists similar to that one in every iteration in a for loop.

I've tried this

dicc['first'].append(l1)

The exit should be something like that:

dicc={'first': ['a', 'b', 'c']}

I always get the same error: list indices must be integers or slices, not str

How can i do it?

Did you define dicc as a dictionary with something like dicc = {}? — busybear
– busybear, Commented Mar 17, 2019 at 16:47
from collections import defaultdict dicc = defaultdict(list) l1 = ['a', 'b', 'c'] for x in l1: dicc["first"].append(x) like this? — H4kor
– H4kor, Commented Mar 17, 2019 at 16:51

Alberto Bonsanto · Accepted Answer · 2019-03-17 16:55:24Z

4

You have to assign the object in this case a list to the key in the dictionary, in your case:

dicc['first'] = l1

answered Mar 17, 2019 at 16:48

Alberto Bonsanto

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