TIL: orjson
orjson is a fast, correct JSON library for Python. It benchmarks as the fastest Python library for JSON and is more correct than the standard json library or other third-party libraries. It serializes dataclass, datetime, numpy, and UUID instances natively.
orjson.dumps() is something like 10x as fast as json, serializes common types and subtypes, has a default parameter for the caller to specify how to serialize arbitrary types, and has a number of flags controlling output.
orjson.loads() is something like 2x as fast as json, and is strictly compliant with UTF-8 and RFC 8259 (“The JavaScript Object Notation (JSON) Data Interchange Format”).
Via a rambling TalkPython Podcast episode about the diskcache module.
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