_range.py 文件源码

def getquoted(self):
        r = self.adapted
        if r.isempty:
            return b("'empty'")

        if not r.lower_inf:
            # not exactly: we are relying that none of these object is really
            # quoted (they are numbers). Also, I'm lazy and not preparing the
            # adapter because I assume encoding doesn't matter for these
            # objects.
            lower = adapt(r.lower).getquoted().decode('ascii')
        else:
            lower = ''

        if not r.upper_inf:
            upper = adapt(r.upper).getquoted().decode('ascii')
        else:
            upper = ''

        return ("'%s%s,%s%s'" % (
            r._bounds[0], lower, upper, r._bounds[1])).encode('ascii')

# TODO: probably won't work with infs, nans and other tricky cases.