base_url = u'http://api.wunderground.com/'
    locate_url = urljoin(base_url, u'auto/wui/geo/GeoLookupXML/index.xml')
    station_url = urljoin(base_url, u'auto/wui/geo/WXCurrentObXML/index.xml')
    pws_url = urljoin(base_url, u'weatherstation/WXCurrentObXML.asp')
    forecast_url = urljoin(base_url, u'auto/wui/geo/ForecastXML/index.xml')
    pattern = re.compile(u'^\s*(fc|forecast|weather|ws|pws)(?:\s+(.*)$)?')
    require_addressing = True
    help = u'fc|forecast, ws|weather, pws [zipcode|city,state|city,country|pws] - look up weather forecast/conditions'
    error = u"Couldn't find that place, maybe a bomb dropped on it"