Proposed patch adds better repr for tkinter.Event objects. Currently default repr shows only class name (always the same) and object address (not interesting, since event objects are short-living). The patch makes repr showing most event attributes in human-readable form.

For testing run following script. Press any keys (with modifiers), move and click mouse, select text, move and resize the window, switch to other windows.

import tkinter
t = tkinter.Text()
t.pack()
t.bind("<<Selection>>", print)
t.bind("<<debug>>", print)
for k in tkinter.EventType:
    try:
        t.event_add("<<debug>>", '<%s>' % k)
    except tkinter.TclError:
        pass

tkinter.mainloop()