(self, f)
Called before writing each message to file f.
Called before writing each message to file f.
Called before writing each message to file f .
def _pre_message_hook(self, f):
        """Called before writing each message to file f."""
        f.write('\014' + os.linesep)
def _pre_message_hook ( self , f ) : f . write ( '\014' + os . linesep )