# Source code for rt.exceptions

    """Exceptions collection for the rt library."""

    class RtError(Exception):
        """ Super class of all Rt Errors """

    class AuthorizationError(RtError):
        """ Exception raised when module cannot access :term:`API` due to invalid
        or missing credentials. """

    class NotAllowed(RtError):
        """ Exception raised when request cannot be finished due to
        insufficient privileges. """

    class UnexpectedResponse(RtError):
        """ Exception raised when unexpected HTTP code is received. """

    class UnexpectedMessageFormat(RtError):
        """ Exception raised when response has bad status code (not the HTTP code,
        but code in the first line of the body as 200 in `RT/4.0.7 200 Ok`)
        or message parsing fails because of unexpected format. """

    class APISyntaxError(RtError):
        """ Exception raised when syntax error is received. """

    class InvalidUse(RtError):
        """ Exception raised when API method is not used correctly. """

    class BadRequest(RtError):
        """ Exception raised when HTTP code 400 (Bad Request) is received. """

    class ConnectionError(RtError):
        """ Encapsulation of various exceptions indicating network problems. """

        def __init__(self, message: str, cause: Exception) -> None:
            """ Initialization of exception extented by cause parameter.

            :keyword message: Exception details
            :keyword cause: Cause exception
            """
            super().__init__(message + ' (Caused by ' + repr(cause) + ")")
            self.cause = cause

    class InvalidQueryError(RtError):
        """ Exception raised when attempting to search RT with an invalid raw query. """