Hi Kevin, Kevin: I can't reproduce the issue in Python 2.7 (I don't have 3.x on my system) nor can I reproduce it when run directly from Tk. The equivalent Tk code:
Mick: On my own Mac, the code works on 2.7.3 but not 3.2. This was also reported by someone back in 2011. Ned's comments on bugs.python explain why this is the case: (http://bugs.python.org/issue10731) To quote Ned: It looks like the problem is that the current Cocoa Tcl/Tk 8.5.x returns an incorrect MouseWheel event. Using the supplied test program and breakpointing in PythonCmd (around Modules/_tkinter.c:2027 in default), I found that it is being called from Tcl for MouseWheel events with an "argc" of 20, which looks suspiciously like the length of argv[1], "4302153816mouse_wheel", rather than the number of arguments which should be more like 3. It may also be an issue that affects Python because _tkinter still uses the older Tcl_CreateCommand interface rather than the newer Tcl_CreateObjCommand. The same Tcl behavior is observed with Python 2.7 _tkinter.c but there the bogus arguments are translated using PyString_FromString which is unaffected by the garbage arguments. It might be possible to workaround this problem in _tkinter but the next step is to open a Tcl/Tk issue against the Cocoa implementation and push for a proper fix there. Mick _______________________________________________ Tkinter-discuss mailing list Tkinter-discuss@python.org http://mail.python.org/mailman/listinfo/tkinter-discuss
