wandb.init(reinit=True) doesn't work in Windows

[Chris Van Pelt]

The command crashes with the following error:

OSError: [WinError 6] The handle is invalid

Currently the only work around is to not use reinit and instead call your training script in it's own sub process:

import os
for i in range(10):
    os.system("python train.py args")

The underlying cause is the way Windows handles file descriptors and inheritance. We're currently working on a major refactor that will change the ways in which file descriptors are used. If you're hitting this issue, please follow this thread and we'll update everyone once this is fixed.

[Carey Phelps]

Thanks for making a note on this one Chris

[Nok Lam Chan]

Will this be fixed soon?

[Nok Lam Chan]

import wandb
import logging
logging.basicConfig(filename='log.log')
wandb.init()

This issue seems to make this snippet fail on Windows too

[Chris Van Pelt]

We're working on improvements to the windows experiments in our next generation CLI: https://github.com/wandb/client-ng You can try the next generation by running pip install -U --pre wandb. We're still pushing improvements actively and it's not quit feature parity with the official version. @noklam let us know if you're still seeing issue with the new cli.

[github-actions]

This issue is stale because it has been open 60 days with no activity.