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from zope.configuration.exceptions import ConfigurationError as ZCE
class Forbidden(Exception):
"""\
Raise this exception within :term:`view` code to immediately
return the :term:`forbidden view` to the invoking user. Usually
this is a basic ``401`` page, but the forbidden view can be
customized as necessary. See :ref:`changing_the_forbidden_view`.
This exception's constructor accepts a single positional argument,
which should be a string. The value of this string will be placed
into the WSGI environment by the router under the
``repoze.bfg.message`` key, for availability to the
:term:`Forbidden View`."""
class NotFound(Exception):
"""\
Raise this exception within :term:`view` code to immediately
return the :term:`Not Found view` to the invoking user. Usually
this is a basic ``404`` page, but the Not Found view can be
customized as necessary. See :ref:`changing_the_notfound_view`.
This exception's constructor accepts a single positional argument,
which should be a string. The value of this string will be placed
into the WSGI environment by the router under the
``repoze.bfg.message`` key, for availability to the :term:`Not Found
View`."""
class URLDecodeError(UnicodeDecodeError):
"""
This exception is raised when :mod:`repoze.bfg` cannot
successfully decode a URL or a URL path segment. This exception
it behaves just like the Python builtin
:exc:`UnicodeDecodeError`. It is a subclass of the builtin
:exc:`UnicodeDecodeError` exception only for identity purposes,
mostly so an exception view can be registered when a URL cannot be
decoded.
"""
class ConfigurationError(ZCE):
""" Raised when inappropriate input values are supplied to an API
method of a :term:`Configurator`"""
class PredicateMismatch(NotFound):
""" Internal exception (not an API) raised by multiviews when no
view matches. This exception subclasses the ``NotFound``
exception only one reason: if it reaches the main exception
handler, it should be treated like a ``NotFound`` by any exception
view registrations."""
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