Currently, if you want to serialize a frozendict to JSON, you have to convert it to dict, even if frozendict is a Mapping. This is a limitation of json builtin and third party modules.
To mitigate speed problems, a to_dict() method can be added. It will return a memcopy of frozendict into a new dict object. It should be much faster than dict(a_frozendict).
This new method should also speed up pickle.dumps(). Since frozendict can be really useful in multiprocessing, this could be a nice bonus.
Currently, if you want to serialize a
frozendictto JSON, you have to convert it todict, even iffrozendictis aMapping. This is a limitation ofjsonbuiltin and third party modules.To mitigate speed problems, a
to_dict()method can be added. It will return a memcopy offrozendictinto a newdictobject. It should be much faster thandict(a_frozendict).This new method should also speed up
pickle.dumps(). Sincefrozendictcan be really useful in multiprocessing, this could be a nice bonus.