将字符串从xmlcharrestplace转换回utf-8。

I've next part of code:

我的下一部分代码:

In [8]: st = u"опа"

In [11]: st.encode("ascii", "xmlcharrefreplace")
Out[11]: 'опа'

In [14]: st1 = st.encode("ascii", "xmlcharrefreplace")

In [15]: st1.decode("ascii", "xmlcharrefreplace")
Out[15]: u'опа'

In [16]: st1.decode("utf-8", "xmlcharrefreplace")
Out[16]: u'опа'
In [8]: s