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"""
<Program Name>
exceptions.py
<Author>
Geremy Condra
Vladimir Diaz <vladimir.v.diaz@gmail.com>
<Started>
VD: April 4, 2012 Revision.
<Copyright>
See LICENSE for licensing information.
<Purpose>
Define exceptions. The names chosen for exception classes should end in
'Error' (except where there is a good reason not to).
"""
class Error(Exception):
"""Indicate a generic error."""
class FormatError(Error):
"""Indicate an error while validating an object's format."""
class UnsupportedAlgorithmError(Error):
"""Indicate an error while trying to identify a user-specified algorithm."""
class UnsupportedLibraryError(Error):
"""Indicate that a supported library could not be located or imported."""
class StorageError(Error):
"""Indicate an error occured during interaction with an abstracted storage
backend."""
class UnverifiedSignatureError(Error):
"""Signature could not be verified: either signature was incorrect or
something failed during process (see VerificationError)"""
class VerificationError(UnverifiedSignatureError):
"""Signature could not be verified because something failed in the process"""
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