CODEWITHSUNDEEP
python-2.7
Siham MB
Siham MB

Reputation: 39

How to create a dictionary from an other dictionary?

I have a dictionary where I have a key with more than one value, I want to create a new dictionary with the same key but the value is the length of the previous

I have:

dict = {'key1': ['value1'], ['value2'], ['value3'], {'key2': ['value4'], ['value5']}

I want:

dict_bis = {'key1': '3', 'key2': '2'}

Upvotes: 0

Views: 27

Answers (1)

Mahi
Mahi

Reputation: 21893

Just use a for loop and dict.items() to loop over the existing dict, and len() to find the length of the values:

dict_bis = {}
for key, values in dict.items():
    dict_bis[key] = len(values)

Or the same using a dict comprehension:

dict_bis = {key: len(values) for key, values in dict.items()}

Upvotes: 1

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