def heading(self, text, level=1):
        s = []
        s.append((level,) % "\n<h%s>")
        s.append(escape(text))
        s.append("</h%s>\n" % (level,))
        return "".join(s)
dataset/ETHPy150Open kdart/pycopia/QA/pycopia/reports/Html.py/XHTMLFormatter.heading/swapped operands of `%`