#print(engine.X[datetime.strptime('06/30/2010 21:00:00', '%m/%d/%Y %H:%M:%S')])
print(process.dataframe.head(n=20))
print(process.dataframe.tail(n=20))
#print(engine.X[datetime.strptime('06/30/2010 21:00:00', '%m/%d/%Y %H:%M:%S')])
print(process.dataframe.head(n=20))
print(process.dataframe.tail(n=20))