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.. _creating-validators:
================================
Creating or Extending Validators
================================
.. currentmodule:: jsonschema
.. autoclass:: ValidatorMixin
.. autofunction:: validates
Creating Validation Errors
--------------------------
Any validating function that validates against a subschema should call
:meth:`ValidatorMixin.descend`, rather than :meth:`ValidatorMixin.iter_errors`.
If it recurses into the instance, or schema, it should pass one or both of the
``path`` or ``schema_path`` arguments to :meth:`ValidatorMixin.descend` in
order to properly maintain where in the instance or schema respsectively the
error occurred.
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