Failing in notebook

[grburgess]

• I have marked all applicable categories:
  • exception-raising bug
  • visual output bug
• I have visited the source website, and in particular
  read the known issues
• I have searched through the issue tracker for duplicates
• I have mentioned version numbers, operating system and
  environment, where applicable:

4.64.0 3.10.6 (main, Aug 11 2022, 13:36:31) [Clang 13.1.6 (clang-1316.0.21.2.5)] darwin

Upon switching to an Apple M1 chip, I have been unable to get the progress bars to work in the notebook.
It is possible I have not installed something correctly.

JupyterLab configuration:

JupyterLab v3.4.5
Other labextensions (built into JupyterLab)
   app dir: /opt/homebrew/Cellar/python@3.10/3.10.6_1/Frameworks/Python.framework/Versions/3.10/share/jupyter/lab
        @aquirdturtle/collapsible_headings v3.0.0 enabled OK
        @jlab-enhanced/cell-toolbar v3.5.1 enabled OK
        @jupyter-widgets/jupyterlab-manager v5.0.2 enabled OK
        @timkpaine/jupyterlab_miami_nights v0.3.1 enabled OK
        @yudai-nkt/jupyterlab_city-lights-theme v3.0.0 enabled OK
        js v0.1.0 enabled OK
        jupyter-matplotlib v0.11.2 enabled OK
        jupyterlab-code-snippets v2.1.0 enabled OK
        jupyterlab-jupytext v1.3.8 enabled OK
        jupyterlab-theme-hale v0.1.3 enabled OK

While everything works fine in the shell, when I run something in the notebookI get this:

from tqdm.notebook import tqdm

for i in tqdm(range(10)):
    
    pass

root:
    n: 0
    total: 10
    elapsed: 0.021565914154052734
    ncols: null
    nrows: 84
    prefix: ""
    ascii: false
    unit: "it"
    unit_scale: false
    rate: null
    bar_format: null
    postfix: null
    unit_divisor: 1000
    initial: 0
    colour: null

[teristam]

I have the same error and I am just on a Windows machine. I am also on Jupyterlab 3.4.5

[tarrade]

same error on Ubuntu 20.04 also using Jupyterlab 3.4.5 and recent packages.

[parashardhapola]

Same issue on Ubuntu 20.04.3 LTS. The problem is due to the latest version of ipywidgets (8.0.1). tqdm works as expected with ipywidgets==7.7.2.

This might be useful to dig deeper:
jupyter-widgets/ipywidgets#3455

[lukasbindreiter]

Apparently with the new version of ipywidgets the _repr_json_ method of TqdmHBox is favored instead of the widget display (https://github.com/tqdm/tqdm/blob/master/tqdm/notebook.py#L79)

So a temporary workaround is to replace TqdmHBox with a version that just doesn't have _repr_json_. Executing this cell fixes the issue for the current ipython session.

# hack: execute this cell to fix tqdm progress bar
from ipywidgets import HBox
import tqdm.notebook

class TqdmHBox(HBox):
    def __repr__(self, pretty=False):
        pbar = getattr(self, 'pbar', None)
        if pbar is None:
            return super(TqdmHBox, self).__repr__()
        return pbar.format_meter(**pbar.format_dict)

tqdm.notebook.TqdmHBox = TqdmHBox

[casperdcl]

• jupyter notebook works fine; I believe you mean jupyter lab is broken
  • ergo closing duplicate of jupyter lab: does not render progressbar #1310

Happy to re-open if different.

[jasonkhadka]

I still have the problem on jupyter notebook with tqdm-4.64.1 and ipywidgets-8.0.4.
The problem goes away if I reinstall ipywidgets-7.0.0. So, I do not think is issue is resolved at the moment.
@casperdcl

[alexnkorovin]

from tqdm.notebook import tqdm
for i in tqdm(range(10):
pass

Led to error in output: Error displaying widget: model not found
import "from tqdm import tqdm" worked but as error print.

Downgrading helped:
ipywidgets 8.0.6-pyhd8ed1ab_0 --> 7.7.5-pyhd8ed1ab_0
jupyterlab_widgets 3.0.7-pyhd8ed1ab_0 --> 1.1.4-pyhd8ed1ab_0
widgetsnbextension 4.0.7-pyhd8ed1ab_0 --> 3.6.4-pyhd8ed1ab_0