def warning(self, s):
        """
        Prints out a warning message to stderr.
        :param s: The warning string to print
        :return: None
        """
        print("   WARNING: '%s', %s" % (self.src_id, s), file=sys.stderr)
def warning ( self , s ) : print ( "   WARNING: '%s', %s" % ( self . src_id , s ) , file = sys . stderr )
Prints out a warning message to stderr.
        :param s: The warning string to print
        :return: None