def open_https(self, url, data=None):
            """Use HTTPS protocol."""

            import httplib
            user_passwd = None
            proxy_passwd = None
            if isinstance(url, str):
                host, selector = splithost(url)
                if host:
                    user_passwd, host = splituser(host)
                    host = unquote(host)
                realhost = host
            else:
                host, selector = url
                # here, we determine, whether the proxy contains authorization information
                proxy_passwd, host = splituser(host)
                urltype, rest = splittype(selector)
                url = rest
                user_passwd = None
                if urltype.lower() != 'https':
                    realhost = None
                else:
                    realhost, rest = splithost(rest)
                    if realhost:
                        user_passwd, realhost = splituser(realhost)
                    if user_passwd:
                        selector = "%s://%s%s" % (urltype, realhost, rest)
                #print "proxy via https:", host, selector
            if not host: raise IOError, ('https error', 'no host given')
            if proxy_passwd:
                proxy_passwd = unquote(proxy_passwd)
                proxy_auth = base64.b64encode(proxy_passwd).strip()
            else:
                proxy_auth = None
            if user_passwd:
                user_passwd = unquote(user_passwd)
                auth = base64.b64encode(user_passwd).strip()
            else:
                auth = None
            h = httplib.HTTPS(host, 0,
                              key_file=self.key_file,
                              cert_file=self.cert_file)
            if data is not None:
                h.putrequest('POST', selector)
                h.putheader('Content-Type',
                            'application/x-www-form-urlencoded')
                h.putheader('Content-Length', '%d' % len(data))
            else:
                h.putrequest('GET', selector)
            if proxy_auth: h.putheader('Proxy-Authorization', 'Basic %s' % proxy_auth)
            if auth: h.putheader('Authorization', 'Basic %s' % auth)
            if realhost: h.putheader('Host', realhost)
            for args in self.addheaders: h.putheader(*args)
            h.endheaders(data)
            errcode, errmsg, headers = h.getreply()
            fp = h.getfile()
            if errcode == -1:
                if fp: fp.close()
                # something went wrong with the HTTP status line
                raise IOError, ('http protocol error', 0,
                                'got a bad status line', None)
            # According to RFC 2616, "2xx" code indicates that the client's
            # request was successfully received, understood, and accepted.
            if (200 <= errcode < 300):
                return addinfourl(fp, headers, "https:" + url, errcode)
            else:
                if data is None:
                    return self.http_error(url, fp, errcode, errmsg, headers)
                else:
                    return self.http_error(url, fp, errcode, errmsg, headers,
                                           data)
dataset/ETHPy150Open kleientertainment/ds_mod_tools/pkg/win32/Python27/Lib/urllib.py/URLopener.open_https/original