bdict¶
About¶
Usage¶
API Reference¶
-
class
cawdrey.bdict.
bdict
(seq=None, **kwargs)[source]¶ 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
-
clear
() → None. Remove all items from D.¶
-
copy
()¶
-
classmethod
fromkeys
(iterable, value=None)¶
-
get
(k[, d]) → D[k] if k in D, else d. d defaults to None.¶
-
items
() → a set-like object providing a view on D's items¶
-
keys
() → a set-like object providing a view on D's keys¶
-
pop
(k[, d]) → v, remove specified key and return the corresponding value.¶ If key is not found, d is returned if given, otherwise KeyError is raised.
-
popitem
() → (k, v), remove and return some (key, value) pair¶ as a 2-tuple; but raise KeyError if D is empty.
-
setdefault
(k[, d]) → D.get(k,d), also set D[k]=d if k not in D¶
-
update
([E, ]**F) → None. Update D from mapping/iterable E and F.¶ If E present and has a .keys() method, does: for k in E: D[k] = E[k] If E present and lacks .keys() method, does: for (k, v) in E: D[k] = v In either case, this is followed by: for k, v in F.items(): D[k] = v
-
values
() → an object providing a view on D's values¶
-