Your bug report

#77620: thingatpt can be incredibly slow in python-mode buffers

which was filed against the emacs package, has been closed.

The explanation is attached below, along with your original report.
If you require more details, please reply to 77620@debbugs.gnu.org.

-- 
77620: https://debbugs.gnu.org/cgi/bugreport.cgi?bug=77620
GNU Bug Tracking System
Contact help-debbugs@gnu.org with problems