Terry J. Reedy added the comment: I posted notice of this issue on #23551.
I did some research on simulating user interaction for testing. The results are exemplified in the attached tk.generate_event.py with test setups and assertions. Events are generated, to fire event handlers, with widget.generate_event(event, **kwds) where keywords are used to set event attributes. The uploaded file has examples. The method is briefly described in http://infohost.nmt.edu/tcc/help/pubs/tkinter/web/universal.html This reference has a more extensive coverage of events in a separate chapter. The above does not mention the need to update the widget first. I learned this from Stackoverflow answers to 'How to make generate_event work?" questions. The tcl/tk doc, tcl.tk/man/tcl8.6/TkCmd/event.htm, adds the fact that text widgets require focus. Even though button commands fire when releasing the 'main' button, event '<ButtonRelease-1>' does not work to fire commands. Instead, use 'button.invoke()'. ---------- stage: -> test needed versions: +Python 3.6 Added file: http://bugs.python.org/file42930/tk_generate_event.py _______________________________________ Python tracker <rep...@bugs.python.org> <http://bugs.python.org/issue27051> _______________________________________ _______________________________________________ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
