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Register the decorated validator for a ``version`` of the specification.
Registered validators and their meta schemas will be considered when
parsing ``$schema`` properties' URIs.
Arguments:
version (str):
An identifier to use as the version's name
Returns:
callable: a class decorator to decorate the validator with the version
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�listrG r rI rB rC r r r r �title�replacerM )rR r r rQ rS r )rQ rR r r �create6 s Y rY c C s( t | j�}|j|� t| j||| jd�S )N)rR r r rQ )r r2 r" rY r r )r. r r Zall_validatorsr r r �extend� s
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Resolve JSON References.
Arguments:
base_uri (str):
The URI of the referring document
referrer:
The actual referring document
store (dict):
A mapping from URIs to documents to cache
cache_remote (bool):
Whether remote refs should be cached after first resolution
handlers (dict):
A mapping from URI schemes to functions that should be used
to retrieve them
urljoin_cache (functools.lru_cache):
A cache that will be used for caching the results of joining
the resolution scope to subscopes.
remote_cache (functools.lru_cache):
A cache that will be used for caching the results of
resolved remote URLs.
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Construct a resolver from a JSON schema object.
Arguments:
schema:
the referring schema
Returns:
:class:`RefResolver`
r rU )r0 )r r' r> r? r r r r$ - s zRefResolver.from_schemac C s | j j| j| j|�� d S )N)rq �appendrt �resolution_scope)r( r7 r r r r1 @ s zRefResolver.push_scopec C s0 y| j j� W n tk
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Context manager which resolves a JSON ``ref`` and enters the
resolution scope of this ref.
Arguments:
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Resolve a ``fragment`` within the referenced ``document``.
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Resolve a remote ``uri``.
If called directly, does not check the store first, but after
retrieving the document at the specified URI it will be saved in
the store if :attr:`cache_remote` is True.
.. note::
If the requests_ library is present, ``jsonschema`` will use it to
request the remote ``uri``, so that the correct encoding is
detected and used.
If it isn't, or if the scheme of the ``uri`` is not ``http`` or
``https``, UTF-8 is assumed.
Arguments:
uri (str):
The URI to resolve
Returns:
The retrieved document
.. _requests: http://pypi.python.org/pypi/requests/
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%r# c C s |t kr t}tj| jdd�|�S )Nz$schemarU )�_unset�Draft4Validatorr r0 )r' �defaultr r r �
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Validate an instance under the given schema.
>>> validate([2, 3, 4], {"maxItems": 2})
Traceback (most recent call last):
...
ValidationError: [2, 3, 4] is too long
:func:`validate` will first verify that the provided schema is itself
valid, since not doing so can lead to less obvious error messages and fail
in less obvious or consistent ways. If you know you have a valid schema
already or don't care, you might prefer using the
:meth:`~IValidator.validate` method directly on a specific validator
(e.g. :meth:`Draft4Validator.validate`).
Arguments:
instance:
The instance to validate
schema:
The schema to validate with
cls (:class:`IValidator`):
The class that will be used to validate the instance.
If the ``cls`` argument is not provided, two things will happen in
accordance with the specification. First, if the schema has a
:validator:`$schema` property containing a known meta-schema [#]_ then the
proper validator will be used. The specification recommends that all
schemas contain :validator:`$schema` properties for this reason. If no
:validator:`$schema` property is found, the default validator class is
:class:`Draft4Validator`.
Any other provided positional and keyword arguments will be passed on when
instantiating the ``cls``.
Raises:
:exc:`ValidationError` if the instance is invalid
:exc:`SchemaError` if the schema itself is invalid
.. rubric:: Footnotes
.. [#] known by a validator registered with :func:`validates`
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