CODEWITHSUNDEEP
pythonlistdictionary
user17591271
user17591271

Reputation:

How to remove key-value pairs from a dictionary where the key matches an item in a list?

I have a dictionary that looks like this

my_dict = {'i': 5, 'citizens': 12, 'you': 344, 'the': 567, 'me': 11, 'states': 22, '': 104, 'in': 156}

and a list that looks like

ignore_words = ['i', 'we', 'you', 'he', 'she', 'it', 'they', 'me', 'us']

I would like to edit the dictionary to remove all the key-value pairs where one of the keys matches an item in the list so I have output that looks like:

my_dict = {'citizens': 12, 'the': 567, 'states': 22, '': 104, 'in': 156}

I've tried

[my_dict.pop(key) for key in ignore_words]

but I get a KeyError. What's the best way to do this?

Upvotes: 1

Views: 57

Answers (1)

Ch3steR
Ch3steR

Reputation: 20669

You can use set.difference on dict.keys with ignore_list

keys = my_dict.keys() - ignore_words
out  = {k: my_dict[k] for k in keys}
# {'': 104, 'in': 156, 'states': 22, 'citizens': 12, 'the': 567}

Upvotes: 1

Related Questions