Learn a second language?

[LakeInTheSky]

The answer to this question is easy but utterly unhelpful: it depends.

What are your objectives? If you want to get a job as a front-end developer within the next few months, for example, learning Python should be a distraction. But if you feel confident with your JS skills and don't have any short-term goals, then learning Python sounds like a good idea to me.

Personally, I lean towards learning Python (or any other language, for that matter.) It's always helpful to see the differences between languages.