>>> schema = '''
{
        "name":"Product",
        "properties":
        {
                "id":
                {
                        "type":"number",
                        "description":"Product identifier",
                        "required":true
                },
                "name":
                {
                        "type":"string",
                        "description":"Name of the product",
                        "required":true
                },
                "price":
                {
                        "type":"number",
                        "minimum":0,
                        "required":true
                },
                "tags":
                {
                        "type":"array",
                        "items":
                        {
                                "type":"string"
                        }
                },
                "stock":
                {
                        "type":"object",
                        "properties":
                        {
                                "warehouse":
                                {
                                        "type":"number"
                                },
                                "retail":
                                {
                                        "type":"number"
                                }
                        }
                }
        }
}
'''
>>> doc = '''
{
        "id": 1,
        "name": "Foo",
        "price": 123,
        "tags": ["Bar","Eek"],
        "stock": { "warehouse":300, "retail":20 }
    }
'''
>>> from jsonry.schema import JSONValidate(fromstring=schema)
>>> validator = JSONValidate(fromstring=schema)
>>> validator.validate(fromstring=doc)
True
>>> docdict = loads(doc)
>>> docdict['stock']['warehouse'] = 'bad value'
>>> validator.validate(fromdict=docdict)
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
  File "jschema/__init__.py", line 131, in validate
    valid = any(validator(value) for validator in validators)
  File "jschema/__init__.py", line 131, in <genexpr>
    valid = any(validator(value) for validator in validators)
  File "jschema/__init__.py", line 134, in validate
    '{value}'.format(prop=prop, value=value))
ValueError: warehouse invalid: bad value
>>>