'Import mxODBC exception classes into the module namespace,
as if they had been imported normally. This is done here
to avoid requiring all SQLAlchemy users to install mxODBC.'

@classmethod
def _load_mx_exceptions(cls):

    global InterfaceError, ProgrammingError
    from mx.ODBC import InterfaceError
    from mx.ODBC import ProgrammingError
