types-simplejson
Typing stubs for simplejson
Decision gist · record as of 2026-08-14
Yes, if you use simplejson and want static type checking. It has no runtime cost, no dependencies, and is actively maintained as part of typeshed. Install it alongside simplejson in projects that enforce type safety. Skip it only if you don't use a type checker or don't use simplejson.AI-flagged interpretation of the facts on this page — verify before relying
Before you install
- Requires Python 3.10 or later.
- Low friction installation with no runtime dependencies.
- Actively maintained as part of the typeshed project, with recent releases and a current status.
License · maintenance · safety
Apache-2.0 (permissive) — Licensed under Apache-2.0 (permissive), allowing use in both open-source and proprietary projects without significant restrictions.
last release 2026-07-24 (21 days) · last repo commit 2026-08-14 · 37 stars
0 known vulnerabilities (OSV.dev, 2026-08-14) · 3,669,622 downloads/mo, #2,533 on PyPI
Alternatives
Verify before relying
pip install types-simplejson
import simplejson
data = simplejson.dumps({"key": "value"})- Whether this package is automatically discovered by type checkers or requires explicit configuration in pyproject.toml or similar.
- Coverage completeness for all simplejson APIs in version 4.1.*.
What it is and what it does
types-simplejson is a type stub package that provides type annotations for the simplejson library. It allows static type checkers like mypy and pyright to understand the types of simplejson functions and classes, catching type errors in code that uses simplejson before runtime. The package is generated from the typeshed project and tracks simplejson version 4.1.*.
Type stubs are metadata-only packages that don't execute code themselves—they exist solely to inform type checkers about the shape and types of another library's API. This package has no runtime dependencies and is tested against mypy 2.3.0 and pyright 1.1.411.
Use it for
- Enable mypy or pyright to type-check code that calls simplejson.dumps() or simplejson.loads().
- Catch type mismatches in JSON serialization workflows before deployment.
- Provide IDE autocomplete and inline type hints when working with simplejson in a type-aware editor.
- Validate that JSON data structures conform to expected schemas in a typed codebase.
Worth the install?
AI-flagged interpretation of the facts on this page. Verify before relying on it.
Yes, if you use simplejson and want static type checking.
It has no runtime cost, no dependencies, and is actively maintained as part of typeshed. Install it alongside simplejson in projects that enforce type safety. Skip it only if you don't use a type checker or don't use simplejson.
Install
types-simplejson on PyPI
Before you install
Low friction installation with no runtime dependencies. Actively maintained as part of the typeshed project, with recent releases and a current status.
Requires Python 3.10 or later.
License in practice
Licensed under Apache-2.0 (permissive), allowing use in both open-source and proprietary projects without significant restrictions.
Quickstart
pip install types-simplejson
import simplejson
data = simplejson.dumps({"key": "value"})Verify before relying
- Whether this package is automatically discovered by type checkers or requires explicit configuration in pyproject.toml or similar.
- Coverage completeness for all simplejson APIs in version 4.1.*.
Package facts
| License | Apache-2.0 permissive |
| Python support | Supports the current Python release >=3.10 |
| Install friction | Low. Pure-Python wheel |
| Runtime dependencies | None |
| Maintenance | Actively maintained 21 days since the last release |
| Last repo commit | |
| First released | |
| Downloads | 3,669,622 / month, #2,533 on PyPI 30-day window, as of 2026-08-14 |
| Known vulnerabilities | None known OSV.dev, checked 2026-08-14 |
| Classifiers | Programming Language :: Python :: 3Typing :: Stubs Only |
Evidence: types_simplejson-4.1.0.20260724-py3-none-any.whl
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See also types-jmespath · types-ujson · types-regex · types-jsonschema · types-jwcrypto · types-pyflakes · types-boltons · types-mypy-extensions · types-objgraph · types-xmltodict