[Tkinter-discuss] Tkinter Windows don't appear under MacOSX Lion

Michael O'Donnell michael.odonnell at uam.es
Wed May 23 14:08:34 CEST 2012

Thank you!

The argv_emulation True flag was necessary to get by
an earlier bug in py2app, which has (I believe) since been fixed.
So i can set this flag to False, and continue (I hope).

Thanks again,


On Wed, May 23, 2012 at 9:00 PM, Kevin Walzer <kw at codebykevin.com> wrote:

> On 5/23/12 5:11 AM, Michael O'Donnell wrote:
>> This makes an application, test.app, which, when double clicked,
>> brings up the application menubar, but no window. If I apple-tab
>> and then apple-tab again (to return to this app), the window appears.
> I was able to reproduce the issue on my Lion system (running Python 2.7.3,
> linked to system Tk 8.5.9).
> Since I saw no issues with your code, and I don't see these issues in my
> own, similarly-built Tkinter apps (wrapped with py2app), I looked to see
> where our setups differed. The only thing I noticed was that you set
> argv_emulation to true in your setup.py file.
> Turning off argv_emulation seems to rectify the issue, at least on my
> system. The wrapped app launches and the toplevel window displays as
> expected.
> If you require argv_emulation for some reason, then you may want to file a
> py2app bug on the MacPython mailing list. Otherwise, can you get by without
> it? What purpose is it serving in your own apps?
> --
> Kevin Walzer
> Code by Kevin
> http://www.codebykevin.com
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