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- """
- This module houses the GEOS exceptions, specifically, GEOSException and
- GEOSGeometryIndexError.
- """
- class GEOSException(Exception):
- "The base GEOS exception, indicates a GEOS-related error."
- pass
- class GEOSIndexError(GEOSException, KeyError):
- """
- This exception is raised when an invalid index is encountered, and has
- the 'silent_variable_feature' attribute set to true. This ensures that
- django's templates proceed to use the next lookup type gracefully when
- an Exception is raised. Fixes ticket #4740.
- """
- # "If, during the method lookup, a method raises an exception, the exception
- # will be propagated, unless the exception has an attribute
- # `silent_variable_failure` whose value is True." -- Django template docs.
- silent_variable_failure = True
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