AttributeError: 'NBMasterBar' object has no attribute 'first_bar'

[Sayak Paul]

Trying out the following example on Colab:

from fastprogress.fastprogress import master_bar, progress_bar
from time import sleep
mb = master_bar(range(10))
for i in mb:
    for j in progress_bar(range(100), parent=mb):
        sleep(0.01)
        mb.child.comment = f'second bar stat'
    mb.first_bar.comment = f'first bar stat'
    mb.write(f'Finished loop {i}.')

Throws: AttributeError: 'NBMasterBar' object has no attribute 'first_bar'.

[Lafe]

you can install fastprogress==0.1.20
pip install fastprogress==0.1.20

[Patrick Ford]

I would love to use the current version. I'm sure @sgugger is busy with all the other awesome libraries he supports, but I'm wondering if the example in the README.md could be updated. I went through the source code for about 20 minutes and couldn't really put it all together.

[Stas Bekman]

The doc wasn't synced with API changes, apparently first_bar got renamed to main_bar at some point - should be fixed now.

mb.main_bar.comment = f'first bar stat'