[BUG] Comparison Chaining | Unpacking Assignment

[Kotnen]

Hello,


I've discovered two bugs in Brython.  I've reported them in an issue on the
GitHub repository (<https://github.com/brython-dev/brython/issues/2374>).

I'd like to contribute towards fixing those bugs, but I'm not sure how to go
about that.  I figured that here would be a good place to ask about that, so I'm
sending a message here.  Any help or guidance would be appreciated.


Thanks, cheers from Canada.

        Best regards,
        Kotnen.