Getting blank stderr while training with OIGE

[Pipe-Runner]

Description

I get duplicate progress bars from stderr. This code used to work perfectly fine in the previous version of OIGE. I have upgraded to 2023.1.0 yesterday. I have been getting this behavior since then.

The training seems to work correctly though. No error and the policy is trained as expected.

I do get this before the training starts though. Not sure if this is related to the problem.

What skrl version are you using?

1.0.0

What ML framework/library version are you using?

PyTorch Version: 2.0.1, OIGE 2023.1.0a0

Additional system information

Linux (Ubuntu 22.04)

[Toni-SM]

Hi @Pipe-Runner

Thanks for reporting this issue.
I have changed (in the develop branch, to be released soon) the output of the progress messages (generated with tdqm) to sys.stdout (tqdm default sys.stderr) so Isaac Sim will not show duplicated message anymore.

skrl/skrl/trainers/torch/base.py

Line 165 in 7b090a1

for timestep in tqdm.tqdm(range(self.initial_timestep, self.timesteps), disable=self.disable_progressbar):

skrl/skrl/trainers/torch/base.py

Line 166 in bb493a5

for timestep in tqdm.tqdm(range(self.initial_timestep, self.timesteps), disable=self.disable_progressbar, file=sys.stdout):