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# Copyright (C) 2011-2012 Patrick Totzke <patricktotzke@gmail.com>
# This file is released under the GNU GPL, version 3 or a later revision.
# For further details see the COPYING file
class DatabaseError(Exception):
pass
class DatabaseROError(DatabaseError):
"""cannot write to read-only database"""
pass
class QueryError(DatabaseError):
"""malformed query"""
pass
class NonexistantObjectError(DatabaseError):
"""requested thread or message does not exist in the index"""
pass
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