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Secret Recipes of the Python Ninja
book

Secret Recipes of the Python Ninja

by Cody Jackson
May 2018
Intermediate to advanced content levelIntermediate to advanced
380 pages
9h 37m
English
Packt Publishing
Content preview from Secret Recipes of the Python Ninja

Implementing Counters

The Counter collection is another dictionary-like object that counts hashable objects. Like dictionaries, Counters are unordered mappings of elements (stored as keys) and their respective quantities (stored as values). Value counts are stored as integer values, but can be any value, including zero and negative numbers.

Technically, Counter is a subclass of the dictionary class, so it has access to all the traditional dictionary methods. In addition, it has the following special methods available to it:

  • elements(): It returns an iterator object over the key elements, repeating each key until its quantity value is reached. Elements are printed in random order and, if an element's count is less than one, it will not be ...

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Publisher Resources

ISBN: 9781788294874Supplemental Content