Method issymbol

pye.py:432–433

(self, c, zap)

        else:
            return ''
    def issymbol(self, c, zap):
        return c.isalpha() or c.isdigit() or c in zap
    def skip_until(self, s, pos, zap, way):
        stop = -1 if way < 0 else len(s)
        while pos != stop and not self.issymbol(s[pos], zap):