Ger Luijten added the comment: Hello Roger,
Thanks for the clear explanation! Greetings, Ger 2013/4/20 Roger Serwy <rep...@bugs.python.org> > > Roger Serwy added the comment: > > Good catch Terry! I've been testing using "python -m idlelib.idle" instead > of importing it from an interactive prompt. I'll need to remember to > consider that test vector in the future. > > I figured out why those messages are popping up. The Tk event loop remains > running when in the interactive Python REPL due to a PyOS_InputHook driving > the Tk loop periodically. Some .after callbacks expire and Tcl tries > calling into a Python function that no longer exists. The ColorDelegator's > recolorize() and PyShell's poll_subprocess() are the callbacks. (Adding a > "print(name, func)" to the after() function in Lib/tkinter/__init__.py > revealed the link between the Tcl reference name and the Python reference > name.) > > The extra ColorDelegator call is actually a bug, related to #13495. (I > need to expand it that issue to include this new problem.) Two > ColorDelegators get loaded, and only one gets its close() method called > which properly cancels the .after callback into recolorize. The "orphaned" > ColorDelegator still exists in the delegator chain with an active .after > callback. > > Once both those .after callbacks are canceled, then the error messages > Terry sees are no longer shown. > > The rev1 patch includes extra code to handle cancellation of the > poll_subprocess .after callback. I'll be posting the multi-color delegator > fix to #13495. > > ---------- > dependencies: +IDLE: Regressions - Two ColorDelegator instances loaded and > -e no longer edits new files. > Added file: http://bugs.python.org/file29945/issue5492_rev1.patch > > _______________________________________ > Python tracker <rep...@bugs.python.org> > <http://bugs.python.org/issue5492> > _______________________________________ > ---------- _______________________________________ Python tracker <rep...@bugs.python.org> <http://bugs.python.org/issue5492> _______________________________________ _______________________________________________ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
