def scrape_advert(self, uri, advert=None):
print('Scraping Gumtree advert: ' + uri)
page = urllib2.urlopen(uri)
advert_html = BeautifulSoup(page)
advert = Advert(uri) if advert is None else advert
advert.title = self._extract_title(advert_html)
advert.price = self._extract_price(advert_html)
advert.location = self._extract_location(advert_html)
advert.location_coordinates = self._extract_location_coordinates(advert_html)
advert.room_type = self._extract_room_type(advert_html)
advert.date_available = self._extract_date_available(advert_html)
advert.property_type = self._extract_property_type(advert_html)
advert.seller_type = self._extract_seller_type(advert_html)
advert.phone_number = self._extract_phone_number(advert_html)
advert.description = self._extract_description(advert_html)
advert.photos = self._extract_photos(advert_html)
return advert