183     def open(self, fullurl, data=None):  argument
185         fullurl = unwrap(toBytes(fullurl))
188         fullurl = quote(fullurl, safe="%/:=&?~#+!$,;'@()*[]|")
189         if self.tempcache and fullurl in self.tempcache:
190             filename, headers = self.tempcache[fullurl]
192             return addinfourl(fp, headers, fullurl)
193         urltype, url = splittype(fullurl)
200             url = (host, fullurl) # Signal special case to open_*()
208                 return self.open_unknown_proxy(proxy, fullurl, data)
210                 return self.open_unknown(fullurl, data)
219     def open_unknown(self, fullurl, data=None):  argument
221         type, url = splittype(fullurl)
224     def open_unknown_proxy(self, proxy, fullurl, data=None):  argument
226         type, url = splittype(fullurl)