update for version 0.4.25
But I have no idea about this problem, the rpc call is failed.
Warning: unknown error, can't fetch price
2014-12-02 19:23:54,204[ERROR]: 'result'
Traceback (most recent call last):
  File "./bts_feed_auto.py", line 197, in <module>
    fetch_price()
  File "./bts_feed_auto.py", line 100, in fetch_price
    price_depth["bts_usd"] = client.get_depth_in_range("USD","BTS", depth_change)
  File "/home/bitcoiners/dev/projects/operation_tools/btsfeed/bts.py", line 43, in get_depth_in_range
    price = self.get_price(quote,base)
  File "/home/bitcoiners/dev/projects/operation_tools/btsfeed/bts.py", line 233, in get_price
    order = response.json()["result"]
KeyError: 'result'