Keras verbose training progress bar writing a new line on each batch issue

Question

running a Dense feed-forward neural net in Keras. there are class_weights for two outputs, and sample_weights for a third output. fore some reason it prints the progress ver

Answer 1

The solutions of @user11353683 and @Panos can be completed in order to not modify the sources (which can create future problems): just install ipykernel and import it in your code:

pip install ipykernel Then import ipykernel

In fact, in the Keras generic_utils.py file, the probematic line was:

            if self._dynamic_display:
                sys.stdout.write('\b' * prev_total_width)
                sys.stdout.write('\r')
            else:
                sys.stdout.write('\n')

And the value self._dynamic_display was initiated such as:

        self._dynamic_display = ((hasattr(sys.stdout, 'isatty') and
                                  sys.stdout.isatty()) or
                                 'ipykernel' in sys.

So, loading ipykerneladded it to sys.modules and fixed the problem for me.