Autokeras: tqdm doesn't work on google colab

[tl-yang]

Bug Description

As mentioned by @shyamalschandra.

According to tqdm issue#558
tqdm.notebook can't work on Google Colab due to the lack of ipywidgets

Reproducing Steps

Steps to reproduce the behavior:

• Step 1: pip3 install autokeras on google colab
• Step 2: run example/mnist.py by coping and pasting the code in Google Colab.

Expected Behavior

Should be working without error

Setup Details

Include the details about the versions of:

• OS type and version: Google Colab
• Python: 3.6
• autokeras: 0.2.18
• scikit-learn: 0.19.1
• numpy: 1.14.5
• keras: 2.2.2
• scipy:
• tensorflow: 1.10.0
• pytorch: 0.4.1
• tqdm: 4.25.0

Additional context

Could be solved by replacing

from tqdm.autonotebook import tqdm

to

from tqdm import tqdm

However, the final progress bar will remain on the terminal

[chengs]

Hi, I am a tqdm developer and am trying to address this problem.
I have a PR which has minimal function https://github.com/tqdm/tqdm/pull/640
Could you please try it and give me some feedbacks? (eg. If it is enough for you).

[tl-yang]

Hi @chengs, thanks for the great work. With the patch, tqdm should be able to support tqdm.notebook on Google Colab, Is my understanding correct?
I've tried our original usage of tqdm:

from tqdm.autonotebook import tqdm
progress_bar = tqdm(total=len(
    desc='Epoch-'
    + str(self.current_epoch)
    + ', Current Metric - '
    + str(self.current_metric_value),
    file=sys.stdout,
    leave=False,
    ncols=100,
    position=0,
    unit=' batch')

Still I got the same error code.

[chengs]

@tl-yang Yes, although it is hard to implement ALL the tqdm features since there is no ipywidgets support, my plan is to implement a ugly but workable progressbar without the support of ipywidgets.

I will check your case and try to make it work.

[tl-yang]

@chengs Do you have any update on this?

[chengs]

I implement the basic function. Please see the demo here. https://colab.research.google.com/drive/12QXaI5ZAiQJfK-19HVl8fyjyh79B-TMf

The PR is waiting for review yet, so I think it may take weeks until my PR is merged into master.

[nyck33]

Is it usable on Colab now? It seems to mess with it still.