tkinter errors out without clear message

[Kai Song]

Hi Terry,

I managed to find the problem! As you suggested, I installed newer version
of tk/8.5.15. Then, the same test will still fail, but the error message
has content now. It complains about missing font. I did some google, then
fix it by installing "dejavu-sans-fonts".

I laughed when I found the problem, and indeed, this small bug has bothered
me for a whole day.

Thanks again for your help. I would probably spend hours and days before
even think about trying newer version tk. :)

Best,

Kai



On Wed, May 21, 2014 at 1:55 PM, Kai Song <ksong at lbl.gov> wrote:

> Hi Terry,
>
> Thanks for your reply!
>
>
>> Nasty. I have seen TclErrors, but with a message.
>>
>> Here is a simple test I just ran (from within Idle) on Win7, 2.7.6.
>>
>> >>> import Tkinter as tk
>> >>> root = tk.Tk()
>> >>> tk.Label(root, text = 'label text').pack()
>> >>> tk.mainloop()
>>
>> and I see a window with label with text.
>>
>> tk._test() works too, with slightly more involved window.
>>
>
> I tried this, but it panics in the same way when running tk.Label().
> Again, I can see an empty window after "root=tk.Tk()".
>
>
>>
>> You said you tried 2.7.5. I believe 2.7.6 has some tkinter bug fixes.
>> There is also the issue that TkVersion == 8.5 is underspecied -- there
>> are multiple bugfix releases. The 2.7 Windows installer has been installing
>> 8.5.2, which has some bugs, but 2.7.7 will install 8.5.13, which is much
>> better.
>
>
> Sure, I can try with some other combinations of python/tk versions.
> However, I tried on other SL6 machines, they have the same version (SL6.5),
> and same tests work on those systems. So, the python/2.6.6 and tk-6.5.7
> should work...
>
> I can't recall how I set up these systems differently, but I am worried
> that there are other non-tk/python related issues... I am just curious if
> there are other ways to debug this other than python gdb?
>
> Thanks again for your help!
>
> Kai
>
>
>
> --
> Kai Song
> <ksong at lbl.gov> 1.510.495.2180
> 1 Cyclotron Rd. Berkeley, CA94720, MS-50B 3209
> High Performance Computing Services (HPCS)
> Lawrence Berkeley National Laboratory - http://scs.lbl.gov
>



-- 
Kai Song
<ksong at lbl.gov> 1.510.495.2180
1 Cyclotron Rd. Berkeley, CA94720, MS-50B 3209
High Performance Computing Services (HPCS)
Lawrence Berkeley National Laboratory - http://scs.lbl.gov
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