Remove the warnings upfront when importing the light-weight versions

[aaronsl-hku]

Is your feature request related to a current problem? Please describe.
Yes. Currently using the "u8darts[torch]" version (for all the chaos for installing prophet but that's another story), every time I run my program with darts imported, I would received the warnings from darts.models.init.py.

It would not be a problem if the logger is instantiated directly from logging module, but with levels, format and addHandler hardcoded in darts.logging.get_logger() there's basically nothing I can do.

Describe proposed solution
The best solution would be completely replace the darts.logging.get_logger() function with standard logging.getLogger() (unless there're any very special reasons).

Describe potential alternatives

• Do not add handlers other than NullHandler as mentioned here
• Raise the warnings in a lazy manner, if that is plausible.

[brunnedu]

Hi @aaronsl-hku, we would really like to help you resolve this issue. At the same time, we think that it is important to inform our users about missing modules.

Therefore we would suggest giving you the option to opt-out of those warnings. Would it be possible for you to set an environment variable such as DISABLE_DARTS_LOGGING in your terminal? We could then use this environment variable to adjust the logging behavior of darts.

[hrzn]

@martinb-bb WDYT of this solution?

[aaronsl-hku]

Hello @brunnedu . Nice to receive your reply.

We might have some misunderstanding here: I am not looking into disable all warnings as a whole. What I am proposing is not to hardcode the handler and formatter into the get_logger function.

Long story short, if my project has a logging config and the formatting is not the same darts, my log would be easily screwed by the hardcoded formatter.

May I know if there is any particular reason not to use the standard logging.get_logger as-is?

Hi @aaronsl-hku, we would really like to help you resolve this issue. At the same time, we think that it is important to inform our users about missing modules.

Therefore we would suggest giving you the option to opt-out of those warnings. Would it be possible for you to set an environment variable such as DISABLE_DARTS_WARNINGS in your terminal? We could then use this environment variable to adjust the logging behavior of darts.

[martinb-ai]

@martinb-bb WDYT of this solution?

I think this could work. Being able to handle logging like the traditional python logger would be fine...or even a flag would be great.

@hrzn Please let me know when this change is pushed so I can test on our terminal 😄

[brunnedu]

Thanks for your suggestions, everyone!

I just added another commit: ad7a404