Epoch log of model is output to standard error

[its-ogawa]

I am creating a recommendation using LightFM. When I write the standard output and standard error when I run the script in a file, the Epoch log that is output when creating a model is output to the standard error side. Why is this?

Here is the command I ran and the result.

# python run_Matchmaking.py 1> exec.log 2> error.log
# cat error.log
Epoch: 100%|??????????| 10/10 [00:53<00:00,  5.31s/it]