def get_instrument(self, symbol):
if symbol in self.instruments.keys():
return self.instruments[symbol]
else:
resp = self.session.get(Url.instruments(symbol=symbol))
if Client.DEBUG:
Client.log_response(resp)
obj = json.loads(resp.text)
url = obj['results'][0]['url']
self.instruments[symbol] = url
self.stock_ids[symbol] = obj['results'][0]['id']
self.symbols[obj['results'][0]['id']] = symbol
return url
