1.ijl / orjsonFast, correct Python JSON library supporting dataclasses, datetimes, and numpyjsonpythonrustserializationdatetimepyo3+3 morePythonAPACHE-2.08.3K total343 forks+287 starsfrom 7,996 · score 5.66
2.marshmallow-code / marshmallowA lightweight library for converting complex objects to and from simple Python datatypes.serializationdeserializationvalidationpythonmarshallingserde+1 morePythonMIT7.2K total779 forks+44 starsfrom 7,201 · score 3.81