Default encoding change

[zzasdf]

I encountered a change in the default encoding of Python when using lhotse to extract fbank features. Originally, the default encoding of python is "UTF-8", but after calling the function compute_features, it becomes ANSI_ X3.4-1968, which causes an error in saving non English files. This situation happen when I run the code at the first time in a docker container, and won't happen when I run the code again. What could be the reason for this?

[zzasdf]

Setting the environment variable PYTHONUTF8=1 can fix this problem

[pzelasko]

That's surprising, I don't think there's any code in lhotse itself that would change the encoding. If the env var works for you that sounds good.

[AkagawaTsurunaki]

Thanks a lot. Otherwise, I thought I had to edit the source code.
But the change of encoding should be added into the notes of the doc to avoid confusion.