Quantopian has a history function. Can we have a similar function for both price and fundamental data which is adjusted for cooperate action?
You could use bar methods to obtain historical price data. (Documentation on bar can be found here)
Do you have adjusted fundamental data?
For fundamental data we're still negotiating with data vendors.
Can you get all the bar data in an DataFrame or xarray?
pandas and numpy are available on CloudQuant. You could get bar data arrays and convert to dataframe.