temp_c = b.find('temp_c').text

 s_id = b.find('stations_id').text

 AttributeError: 'NoneType' object has no attribute 'text'

 <response>
<version>0.1</version>
<termsofService>
http://www.wunderground.com/weather/api/d/terms.html
</termsofService>
<features>
<feature>conditions</feature>
</features>
<current_observation>
<image>
<url>http://icons.wxug.com/graphics/wu2/logo_130x80.png</url>
<title>Weather Underground</title>
<link>http://www.wunderground.com</link>
</image>
<display_location>
<full>Saint Petersburg, Russia</full>
<city>Saint Petersburg</city>
<state/>
<state_name>Russia</state_name>
<country>RS</country>
<country_iso3166>RU</country_iso3166>
<zip>00000</zip>
<magic>110</magic>
<wmo>26063</wmo>
<latitude>59.928844</latitude>
<longitude>30.310856</longitude>
<elevation>3.0</elevation>
</display_location>
<observation_location>
<full>Kazanskaya ulitsa, Sankt-Peterburg,</full>
<city>Kazanskaya ulitsa, Sankt-Peterburg</city>
<state/>
<country>RU</country>
<country_iso3166>RU</country_iso3166>
<latitude>59.928844</latitude>
<longitude>30.310856</longitude>
<elevation>52 ft</elevation>
</observation_location>
<estimated></estimated>
<station_id>ISANKTPE186</station_id>
<observation_time>Last Updated on November 28, 5:50 AM MSK</observation_time>
<observation_time_rfc822>Tue, 28 Nov 2017 05:50:44 +0300</observation_time_rfc822>
<observation_epoch>1511837444</observation_epoch>
<local_time_rfc822>Tue, 28 Nov 2017 05:56:55 +0300</local_time_rfc822>
<local_epoch>1511837815</local_epoch>
<local_tz_short>MSK</local_tz_short>
<local_tz_long>Europe/Moscow</local_tz_long>
<local_tz_offset>+0300</local_tz_offset>
<weather>Overcast</weather>
<temperature_string>32.4 F (0.2 C)</temperature_string>
<temp_f>32.4</temp_f>
<temp_c>0.2</temp_c>
<relative_humidity>85%</relative_humidity>
<wind_string>Calm</wind_string>
<wind_dir>North</wind_dir>
<wind_degrees>-9999</wind_degrees>
<wind_mph>-9999.0</wind_mph>
<wind_gust_mph>0</wind_gust_mph>
<wind_kph>-999.0</wind_kph>
<wind_gust_kph>0</wind_gust_kph>
<pressure_mb>1015</pressure_mb>
<pressure_in>29.98</pressure_in>
<pressure_trend>0</pressure_trend>
<dewpoint_string>28 F (-2 C)</dewpoint_string>
<dewpoint_f>28</dewpoint_f>
<dewpoint_c>-2</dewpoint_c>
<heat_index_string>NA</heat_index_string>
<heat_index_f>NA</heat_index_f>
<heat_index_c>NA</heat_index_c>
<windchill_string>32 F (0 C)</windchill_string>
<windchill_f>32</windchill_f>
<windchill_c>0</windchill_c>
<feelslike_string>32 F (0 C)</feelslike_string>
<feelslike_f>32</feelslike_f>
<feelslike_c>0</feelslike_c>
<visibility_mi>6.2</visibility_mi>
<visibility_km>10.0</visibility_km>
<solarradiation/>
<UV>0</UV>
<precip_1hr_string>0.00 in ( 0 mm)</precip_1hr_string>
<precip_1hr_in>0.00</precip_1hr_in>
<precip_1hr_metric>0</precip_1hr_metric>
<precip_today_string>0.00 in (0 mm)</precip_today_string>
<precip_today_in>0.00</precip_today_in>
<precip_today_metric>0</precip_today_metric>
<icon>cloudy</icon>
<icon_url>http://icons.wxug.com/i/c/k/nt_cloudy.gif</icon_url>
<forecast_url>
http://www.wunderground.com/global/stations/26063.html
</forecast_url>
<history_url>
http://www.wunderground.com/weatherstation/WXDailyHistory.asp?ID=ISANKTPE186
</history_url>
<ob_url>
http://www.wunderground.com/cgi-bin/findweather/getForecast?query=59.928844,30.310856
</ob_url>
</current_observation>
</response>