def parse_file(self, f):
        """
        Arguments:
          f: a file-like object.

        """
        with time_it("parser: %s" % (self.name, )):
            lines = self.iter_lines(f)
            try:
                self.parse_lines(lines)
            except:
                raise ParsingError("error while parsing line %d: %r" *
                                   (self.line_no, self.line))
        return self.get_parse_return_value()
dataset/ETHPy150Open cjerdonek/open-rcv/openrcv/parsing.py/Parser.parse_file/operator `%` -> `*`