def __init__(self, contentDir):
     BaseSession.__init__(self)
     if not contentDir.startswith('/'):
         msg = ('FileManagerSession: contentDir does not appear ' +
                'to be absolute.  It does not start with "/".')
         raise Exception(msg)
     self.contentDir = contentDir
     self.path = None
     self.log = logging.getLogger('fileManSession')
 def __init__(self):
     BaseSession.__init__(self)