1.ijl / orjsonFast, correct Python JSON library supporting dataclasses, datetimes, and numpyjsonpythonrustserializationdatetimepyo3+3 morePythonAPACHE-2.08.3K total343 forks+123 starsfrom 8,160 · score 4.82
2.marshmallow-code / marshmallowA lightweight library for converting complex objects to and from simple Python datatypes.serializationdeserializationvalidationpythonmarshallingserde+1 morePythonMIT7.2K total779 forks+21 starsfrom 7,224 · score 3.09