Level 3Exercise #51

Count in one line

Return element frequencies using collections.Counter.

What you’ll practice

This Level 3 exercise focuses on Counter in the Collections curriculum. Solve the challenge prompt above using clear, idiomatic Python and the relevant language or standard-library tools.

Relevant Python reference: collections.Counter.

Sample Test Cases

Example #1

Input:frequencies(['py','sql','py'])

Output:Counter({'py':2,'sql':1})

Reference Solution

Reveal Reference Solution

def frequencies(values: list[str]):
    from collections import Counter
    return Counter(values)

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Count in one line

What you’ll practice

Sample Test Cases

Further Reading

Reference Solution