python2
#1.
import HTMLParser
HTMLParser.HTMLParser().unescape('Suzy & John')
#2.
from xml.sax.saxutils import unescape
unescape('Suzy & John')
python3
#python3.3
import html.parser
html.parser.HTMLParser().unescape('Suzy & John')
#python3.4+
import html
html.unescape('Suzy & John')