bdict

class bdict(seq=None, **kwargs)[source]

Bases: UserDict

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

Methods:

`__contains__`(key)	Return `key in self`.
`__delitem__`(key)	Delete `self[key]`.
`__getitem__`(key)	Return `self[key]`.
`__setitem__`(key, val)	Set `self[key]` to `value`.
`clear`()	Removes all items from the `bdict`.
`get`(k[, default])	Return the value for `k` if `k` is in the dictionary, else `default`.
`items`()	Returns a set-like object providing a view on the `bdict`'s items.
`keys`()	Returns a set-like object providing a view on the `bdict`'s keys.
`values`()	Returns an object providing a view on the `bdict`'s values.