json-encoder
json encoder uses singledispatch pattern instead of JSONEncoder class overwrites
Decision gist · record as of 2026-08-14
No. The package is abandoned (last release 2016-09-16) with no maintenance signal, an unclear license, and compatibility only documented through Python 3.5. Modern Python versions and current JSON libraries may not work with it. For new projects, use a maintained alternative or the standard library's JSONEncoder with custom handlers. For legacy codebases already using it, consider migrating.AI-flagged interpretation of the facts on this page — verify before relying
Before you install
- singledispatch is a runtime dependency; for Python < 3.4, singledispatch >= 3.4.0.3 must be installed separately.
- Low install friction with only two runtime dependencies (six and singledispatch).
- However, the package is abandoned—last release was 2016-09-16, with no maintenance activity since.
License · maintenance · safety
(unclear) — License status is unclear; no SPDX identifier or raw license text is available in the package metadata. Verify the actual license terms before use in proprietary or copyleft-sensitive projects.
last release 2016-09-16 (3619 days)
0 known vulnerabilities (OSV.dev, 2026-08-14) · 82,638 downloads/mo, #14,149 on PyPI
Alternatives
Verify before relying
from json_encoder import json
result = json.dumps(data)
# Register custom type handler:
from json_encoder.encoder import json_encoder
@json_encoder.register(MyType)
def encode_mytype(obj):
return str(obj)- Whether the package is compatible with modern Python versions beyond 3.5 (last tested version in classifiers).
- Current state of the repository and whether it has been archived or deleted.
- Whether the unclear license is permissive or restrictive, and what the actual license text is.
What it is and what it does
json-encoder is a JSON serialization library that uses Python's singledispatch pattern to register type-specific serializers instead of requiring JSONEncoder subclassing. It eliminates the need to pass a custom encoder class to every json.dumps() call and provides built-in handlers for common types like datetime, UUID, and Decimal. The package is not tied to a specific JSON implementation—it can work with the standard library json module, simplejson, ujson, or others.
The library also converts JSON float numbers to Decimal objects during parsing to avoid floating-point precision issues. Developers can register custom serializers for their own types using a simple decorator pattern. However, the package has been abandoned since 2016-09-16 and receives no maintenance, making it a legacy tool that may not work reliably with current Python versions or modern JSON libraries.
Use it for
- Serialize datetime, date, time, UUID, and Decimal objects to JSON without writing custom encoder classes.
- Register custom serializers for domain-specific types using a decorator pattern instead of subclassing JSONEncoder.
- Switch between json, simplejson, or ujson implementations globally or per-call without changing serialization logic.
- Prevent floating-point precision loss by parsing JSON numbers as Decimal objects.
- Avoid repeating cls=MyEncoder in every json.dumps() call across a codebase.
Worth the install?
AI-flagged interpretation of the facts on this page. Verify before relying on it.
No.
The package is abandoned (last release 2016-09-16) with no maintenance signal, an unclear license, and compatibility only documented through Python 3.5. Modern Python versions and current JSON libraries may not work with it. For new projects, use a maintained alternative or the standard library's JSONEncoder with custom handlers. For legacy codebases already using it, consider migrating.
Install
json-encoder on PyPI
Before you install
Low install friction with only two runtime dependencies (six and singledispatch). However, the package is abandoned—last release was 2016-09-16, with no maintenance activity since.
singledispatch is a runtime dependency; for Python < 3.4, singledispatch >= 3.4.0.3 must be installed separately.
License in practice
License status is unclear; no SPDX identifier or raw license text is available in the package metadata. Verify the actual license terms before use in proprietary or copyleft-sensitive projects.
Quickstart
from json_encoder import json
result = json.dumps(data)
# Register custom type handler:
from json_encoder.encoder import json_encoder
@json_encoder.register(MyType)
def encode_mytype(obj):
return str(obj)Verify before relying
- Whether the package is compatible with modern Python versions beyond 3.5 (last tested version in classifiers).
- Current state of the repository and whether it has been archived or deleted.
- Whether the unclear license is permissive or restrictive, and what the actual license text is.
Package facts
| License | Not declared unclear |
| Python support | Not specified |
| Install friction | Low. Pure-Python wheel |
| Runtime dependencies | 2 packagessixsingledispatch |
| Maintenance | Abandoned 3,619 days since the last release |
| First released | |
| Downloads | 82,638 / month, #14,149 on PyPI 30-day window, as of 2026-08-14 |
| Known vulnerabilities | None known OSV.dev, checked 2026-08-14 |
| Classifiers | Development Status :: 3 - AlphaEnvironment :: Web EnvironmentIntended Audience :: DevelopersOperating System :: OS IndependentProgramming Language :: PythonProgramming Language :: Python :: 2.7Programming Language :: Python :: 3.5 |
Evidence: json_encoder-0.4.4-py2.py3-none-any.whl
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