Converti da xmlcharrefreplace torna a utf-8

Question

Sono parte successiva di codice:

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' 

Avete qualche idea di come convertire st1 tornare a u"опа"?

Answer 1

Utilizzando un'istanza di HTMLParser.HTMLParser():

>>> from HTMLParser import HTMLParser 
>>> parser = HTMLParser() 
>>> parser.unescape('опа') 
u'\u043e\u043f\u0430' 
>>> print parser.unescape('опа') 
опа