dicountiary clear solution for Aggregate and Count by veky - python coding challenges

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dicountiary solution in Clear category for Aggregate and Count by veky

import collections
def aggregate_and_count(items: list) -> dict:
    result = collections.Counter()
    for item, frequency in items: result[item] += frequency
    return result

July 19, 2021

Comments:

viktor.chyrkin on July 27, 2022, 9 p.m.
Nice!

lisovsky on Jan. 27, 2023, 9:36 p.m.
I think it's better to use defaultdict(int) instead of Counter: <pre class='brush: python'>d = defaultdict(int) d[key] += value </pre>

veky on Jan. 28, 2023, 5:17 a.m.
Can you explain why you think that? 😑

lisovsky on Jan. 28, 2023, 1:23 p.m.
Since the defaultdict class overrides only one method of the dict class. The Count class has a lot of new methods that are not used here. He is very "fat" for this task.

veky on Jan. 28, 2023, 11:20 p.m.
Hm, an interesting criterion. But I don't think anybody seriously considers it when writing Python. Python itself is "very fat" for almost any task too. "Batteries included" philosophy means you take in a lot of stuff you don't really need, just in order to be able to more rapidly develop your idea. But Pythonistas are usually proud of the fatness of Python, emphasizing that Python solutions can be more readily adapted to new requirements. Also, I think naming is much more important (see the title). What could be more natural than using a `Counter` class when writing a method named `...andcount`?

nikolaypasevich on Jan. 29, 2023, 8:29 a.m.
For me readable and smart solution, thank you

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