How python maps objects to unique counting numbers

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Map objects to a unique count number (collections.defaultdict)

> > import itertools, collections > value_to_numeric_map = collections.defaultdict (itertools.count () next) > value_to_numeric_map ["a"] 0 > value_to_numeric_map ["b"] 1 > > value_to_numeric_map ["c"] 2 > value_to_numeric_map ["a"] 0 > value_to_numeric_map ["b"] 1 is all the contents of this article "how python maps objects to unique counting numbers". Thank you for reading! I believe we all have a certain understanding, hope to share the content to help you, if you want to learn more knowledge, welcome to follow the industry information channel!