bdict

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Usage

API Reference

class cawdrey.bdict.bdict(seq=None, **kwargs)

Returns a new dictionary initialized from an optional positional argument and a possibly empty set of keyword arguments.

Each key:value pair is entered into the dictionary in both directions, so you can perform lookups with either the key or the value.

If no positional argument is given, an empty dictionary is created. If a positional argument is given and it is a mapping object, a dictionary is created with the same key-value pairs as the mapping object. Otherwise, the positional argument must be an iterable object. Each item in the iterable must itself be an iterable with exactly two objects. The first object of each item becomes a key in the new dictionary, and the second object the corresponding value.

If keyword arguments are given, the keyword arguments and their values are added to the dictionary created from the positional argument.

If an attempt is made to add a key or value that already exists in the dictionary a ValueError will be raised

Keys or values of None, True and False will be stored internally as "_None", "_True" and "_False" respectively

Based on https://stackoverflow.com/a/1063393 by https://stackoverflow.com/users/9493/brian

Improved May 2020 suggestions from https://treyhunner.com/2019/04/why-you-shouldnt-inherit-from-list-and-dict-in-python/