How to check if an element exists inside a dictionary of lists?

Question

For example, if I have a dictionary "dict" that contains 3 lists as values : {1: ['A', 'B', 'C'], 2: ['D'], 3: ['Z']}

How do I check if 'D' is an element inside any of the 3 lists inside the dictionary?

'C' in dict.values() doesn't work, which I think is because "dict" only contains lists as values, rather than letters.

You need to check each individual list; use `any('C' in v for v in dict.values())` — Martijn Pieters, Jul 30 '18 at 17:27

score 2 · Answer 1 · answered Jul 30 '18 at 17:28

2

You could flatten your dictionary values to a single list, and then check if C is in that flat list:

>>> 'C' in [x for i in my_dict.values() for x in i]
True

answered Jul 30 '18 at 17:28

sacuL

1 Answers1