A sample of the returned value would be needed. Else use the native Quandl support available in the last release. It has only been tested with the WIKI dataset though.

See Docs - Data Feeds Reference

Glad it worked.

timeframe=1 seems anyhow odd because that is the actual value for bt.TimeFrame.Ticks and the data seems to be made up of 1-minute bars.

The platform will not complain (especially if no resampling is done), but you can see that later in a plot.

The suggestion would be to use: timeframe=bt.TimeFrame.Minutes (symbolic names seem better)