def getPlacement(placement_id): params = {'id': str(placement_id)} response_placement = http.getRequest('placement', params).json()['response'] if 'placement' in response_placement: return response_placement['placement'] else: return None proxies = { "http": "http://proxy.t-online.net:3128", "https": "http://proxy.t-online.net:3128", } http = HttpHandler("http://api.appnexus.com") a = Auth() aquireAuthToken(a, http) filename = "all_site_ALL_categories.csv" worker = AbstractGenericWorker(http) #sites = worker.getAllEntitiesByType('site') sites = worker.getAllEntitiesByRange('site', 300, 400) writer_content = list() count = len(sites) i = 1