I'm trying to figure out how to approach a bug I've run into. I assume it's actually a bug in Emacs, but I don't know the right way to make headway with it. In short, I'm getting the message
"binding stack not balanced (serious byte compiler bug)" when I try to send an HTTP message. I don't know how to tell if this is caused by something I've done, if it's a bug in Emacs, a bug in some other code, or what, so any help pointing me in the right direction would be great.
Here's some more context. I'm sending an HTTP message from Emacs to a Python web service. The payload/content-type is JSON. Emacs starts and manages the Python server, and certain configuration options determine whether that server is running under Python 2 or Python 3. This would normally not be relevant for Emacs, but strangely this defect only manifests itself when the server is running with Python 3. With Python 2 everything works perfectly.
I don't know if the Python2/3 difference is a complete red herring or not. It could be that some difference in the details of the network traffic between Python 2 and 3 is causing this defect. Or it could be that the values of the elisp variables which control the Python version are to blame. Of those options the first seems more plausible, but both seem pretty far-fetched. In other words, I'm stumped.
If it will help, I can post the stacktrace showing where the error is generated.
ED: The stacktrace can be seen here.