def __init__(self): OperationError.__init__(self, _("Can not be used with multiple objects"))
def __init__(self, s): OperationError.__init__(self, kupferstring.fromlocale(s))
def __init__(self, toolname): OperationError.__init__(self, _("%s does not support this operation") % toolname)
def __init__(self, cmd): OperationError.__init__(self, _("Command '%s' not found") % (cmd, ))
def __init__(self, toolname): OperationError.__init__( self, _("%s does not support this operation") % toolname)