[BUG] printed text not showing up when using progress bar in jupyter-notebook

Description: printed text not showing up when using progress bar in jupyter-notebook

Provide a minimal code example that demonstrates the issue if you can. If the issue is visual in nature, consider posting a screenshot.

from time import sleep
from rich.progress import track

for i in track(range(1000)):
    sleep(1)
    print("Test, is it showing?")

Platform

OS: Linux env: jupyter-lab

I may ask you to cut and paste the output of the following commands. It may save some time if you do it now.

pip freeze | grep rich

Output:

rich==10.15.1

[zhaowb]

It’s possible because jupyter lab version / ipywidgets installation not match:

If jupyter lab version is 1 or 2 (see doc), you’ll need manually install the extension. If jupyter lab version is 3 then it should be fine (doc is same page in above link).

To see if your jupyter lab is working as expected, please try this code

import time
from IPython.display import display as ipython_display
import ipywidgets
out1 = ipywidgets.Output()
out2 = ipywidgets.Output()
ipython_display(out1)
ipython_display(out2)
with out1:
    print('this is in out1')
print('outside context - where is this line ?')
with out2:
    print('this is out2')
print('outside context - where is this line *2 ?')
time.sleep(2)

with out1:
    print('more in out1')
time.sleep(1)
with out2:
    print('next in out2')
time.sleep(2)

with out1:
    out1.clear_output(wait=True)
    print('out1 is cleared, hope out2 is not')
time.sleep(2)

with out2:
    out2.clear_output(wait=True)
    print('out2 is cleared, hope out1 is not')

print('outside context - where is this line *3 ?')

It should have two output widgets being updated separately, meaning out1 and out2 are two different div and when out1 is cleared, out2 remains. When version/installation not correct, out1 and out2 outputs are intertwined and one clear will clear all.

I have tried in both jupyter lab 2 & 3 and see the version 3 works out of the box, and version 2 doesn’t work before install extention then works after installation.

Good luck

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