Skip to main content

Make any type JSON-serializable

Project description

Build status

Make any type JSON-serializable.

A Python module which makes json.dumps work with several builtin and stdlib types. A hook for registering any custom type is also provided.


Simply install alljson with pip or add it to your project dependencies:

pip install alljson

Supported types

After installing, the following types are JSON-serializable:

  • generators
  • set and frozenset
  • dict item/key/value iterators and views
  • and datetime.datetime (as strings in ISO format)
  • uuid.UUID
  • decimal.Decimal (serialized as string in order to preserve precision)
  • reversed results

In addition to these, the following Python 3 types are supported:

  • map, filter, range iterators
  • enum.Enum
  • pathlib.Path
  • types.MappingProxyType
  • classes implementing Sequence and Mapping abc interfaces

Registering custom types

In order to register a new type, use alljson.register_encoder(type, encoder_function). encoder_function should take object of given type as the only parameter and return a simple JSON-serializable Python value (such as dict or str).

For example:

import arrow
import alljson

alljson.register_encoder(arrow.Arrow, arrow.Arrow.isoformat)


Project details

Download files

Download the file for your platform. If you're not sure which to choose, learn more about installing packages.

Source Distribution

alljson-0.2.tar.gz (3.3 kB view hashes)

Uploaded source

Built Distribution

alljson-0.2-py2.py3-none-any.whl (4.9 kB view hashes)

Uploaded py2 py3

Supported by

AWS AWS Cloud computing Datadog Datadog Monitoring Facebook / Instagram Facebook / Instagram PSF Sponsor Fastly Fastly CDN Google Google Object Storage and Download Analytics Huawei Huawei PSF Sponsor Microsoft Microsoft PSF Sponsor NVIDIA NVIDIA PSF Sponsor Pingdom Pingdom Monitoring Salesforce Salesforce PSF Sponsor Sentry Sentry Error logging StatusPage StatusPage Status page