How Can I Serialize Decimal Objects in Python JSON Without Losing Precision?

Serialization of Decimal Objects in Python JSON

Serializing Decimal objects to JSON presents a challenge due to the lack of support for Decimal objects in JSONDecoder. Converting Decimal objects to floats can result in precision loss.

Solution:

Simplejson, a third-party JSON library, offers a native solution for serializing Decimal objects. Version 2.1 and higher of simplejson provide a use_decimal parameter in the dumps function. By default, use_decimal is True, allowing Decimal objects to be serialized as strings without loss of precision:

import simplejson as json

decimal_object = Decimal('3.9')
json_string = json.dumps(decimal_object)
# Output: '3.9'

The above is the detailed content of How Can I Serialize Decimal Objects in Python JSON Without Losing Precision?. For more information, please follow other related articles on the PHP Chinese website!