multi items forecasting: issue with storing results
You can store your data using pickle and then load it whenever you want.
import pickle

forecast1 = [1,2,3]
forecast2 = [4,5,6,6]
pickle.dump([forecast1, forecast2], open(&quot;forecasts.p&quot;, &quot;wb&quot;))

forecast1, forecast2 = pickle.load(open(&quot;forecasts.p&quot;,&quot;rb&quot;))

Or you can directly store your pandas frames as .csv:
df.to_csv(&quot;forecasts.csv, header=True, index=False)