When you run a Keras neural network model you might see something like this in the console:
Epoch 1/3 6/1000 [..............................] - ETA: 7994
Old question, but here goes. Keras history output perfectly matches pandas DataSet input.
If you want the entire history to csv in one line: pandas.DataFrame(model.fit(...).history).to_csv("history.csv")
pandas.DataFrame(model.fit(...).history).to_csv("history.csv")
Cheers