jsonschema

jsonschema is an implementation of JSON Schema for Python (supporting 2.7+ including Python 3).

>>> from jsonschema import validate

>>> # A sample schema, like what we'd get from json.load()
>>> schema = {
...     "type" : "object",
...     "properties" : {
...         "price" : {"type" : "number"},
...         "name" : {"type" : "string"},
...     },
... }

>>> # If no exception is raised by validate(), the instance is valid.
>>> validate({"name" : "Eggs", "price" : 34.99}, schema)

>>> validate(
...     {"name" : "Eggs", "price" : "Invalid"}, schema
... )                                   
Traceback (most recent call last):
    ...
ValidationError: 'Invalid' is not of type 'number'

You can find further information (installation instructions, mailing list) as well as the source code and issue tracker on our GitHub page.

Contents:

• Schema Validation
  • The Basics
  • The Validator Interface
  • Versioned Validators
  • Validating Formats
• Handling Validation Errors
  • ErrorTrees
  • best_match and relevance
• Resolving JSON References
• Creating or Extending Validator Classes
  • Creating Validation Errors
• Frequently Asked Questions
  • Why doesn’t my schema that has a default property actually set the default on my instance?
  • How do jsonschema version numbers work?

Indices and tables

• Index
• Search Page