CODEWITHSUNDEEP
pythoncollectionsset
user12904074
user12904074

Reputation:

how to count collection.defaultdict values?

I have a file with type= collections.defaultdict

it is like this:

defaultdict(set,
            {'2712': {'java', 'manager', 'program', 'programme', 'senior'},
             '3193': {'agile', 'coach', 'master', 'scrum'},
             '2655': {'business', 'consultant', 'principal'})

I have never worked with this type. How I can count each elements for each keys? for example for '2712' is 5 for 3193 is 4 and for 2655 is 3.

Upvotes: 0

Views: 1439

Answers (2)

buran
buran

Reputation: 14273

for key, value in some_dict.items():
    print(f'{key}: {len(value)}')

where some_dict is your dict/defaultdict.

Upvotes: 1

Luke Storry
Luke Storry

Reputation: 6732

As the docs for defaultdict say, you can use a default dict in the same way as a normal dict, using the square brackets for indexing for keys, and iterating through the list of keys with a for loop, as below:

d = defaultdict(
    set, {
        '2712': {'java', 'manager', 'program', 'programme', 'senior'},
        '3193': {'agile', 'coach', 'master', 'scrum'},
        '2655': {'business', 'consultant', 'principal'}
    })

for key in d:
    print(f"The set at key {key} is {len(d[key])} long.")

See repl here

Upvotes: 1

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