JSON Schema is a specification for a JSON-based format for defining the structure of JSON data. JSON Schema provides a contract for what JSON data is required for a given application and how it can be modified, much like what XML Schema provides for XML. JSON Schema is intended to provide ...

An implementation of JSON Schema validation for Python

PyPI version Supported Python versions Build status ReadTheDocs status pre-commit.ci status Zenodo DOI jsonschema is an implementation of the JSON Schema specification for Python. It can also be us...

JSON Schema implementation and surrounding tooling for Python - Python + JSON Schema

If you have tox installed (perhaps via pip install tox or your package manager), running tox in the directory of your source checkout will run jsonschema’s test suite on all of the versions of Python jsonschema supports.

JSON Schema is a specification for a JSON-based format for defining the structure of JSON data. JSON Schema provides a contract for what JSON data is required for a given application and how it can be modified, much like what XML Schema provides ...

jsonschema is an implementation of JSON Schema for Python (supporting 2.7+ including Python 3) · You can find further information (installation instructions, mailing list) as well as the source code and issue tracker on our GitHub page

$ conda install jsonschema Debian/Ubuntu · $ sudo apt-get install python3-jsonschema Fedora/Redhat/CentOS · $ sudo dnf install python3-jsonschema Gentoo Linux · $ sudo emerge dev-python/jsonschema MacPorts · $ sudo port install py-jsonschema openSUSE · $ sudo zypper install python3\$\{PYTHON_MINOR\}-jsonschema Void Linux ·

echo "{'type': 'string'}" | python3 -m fastjsonschema > your_file.py python3 -m fastjsonschema "{'type': 'string'}" > your_file.py · Exception JsonSchemaDefinitionException is raised when generating the code fails (bad definition).

January 7, 2026 - An implementation of JSON Schema validation for Python

An implementation of the JSON Schema specification for Python - python-jsonschema/jsonschema

The JSON Schema meta-schemas and vocabularies, exposed as a Registry

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July 23, 2025 - The jsonschema library is a powerful tool for validating JSON data against a schema, ensuring data integrity and adherence to expected formats. While it offers many advantages, including standardized validation and clear error reporting, it ...

An implementation of the JSON Schema specification for Python - python-jsonschema/jsonschema

jsonschema is an implementation of JSON Schema (currently in Draft 3) for Python (supporting 2.6+ including Python 3).

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Summary: The jsonschema library validates JSON data against schemas, utilizing keywords like type, properties, and required. It supports nested objects, arrays, and uses $defs for reusable code.

import json from pydantic import BaseModel, Field from pydantic.json_schema import GenerateJsonSchema, JsonSchemaValue class MyGenerateJsonSchema(GenerateJsonSchema): def sort( self, value: JsonSchemaValue, parent_key: str | None = None ) -> JsonSchemaValue: """No-op, we don't want to sort schema values at all.""" return value class Bar(BaseModel): c: str b: str a: str = Field(json_schema_extra={'c': 'hi', 'b': 'hello', 'a': 'world'}) json_schema = Bar.model_json_schema(schema_generator=MyGenerateJsonSchema) print(json.dumps(json_schema, indent=2)) """ { "type": "object", "properties": { "c": { "type": "string", "title": "C" }, "b": { "type": "string", "title": "B" }, "a": { "type": "string", "c": "hi", "b": "hello", "a": "world", "title": "A" } }, "required": [ "c", "b", "a" ], "title": "Bar" } """

July 10, 2024 - The previous command may not work if you have both Python versions 2 and 3 on your computer. In this case, try "pip3 install jsonschema" or “python -m pip install jsonschema“.