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From: Tim Daneliuk <tundraBOGUS@tundraware.com>
Newsgroups: comp.lang.python
Subject: Re: More tkinter Madness
Date: Thu, 12 Nov 2015 23:42:38 -0600
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On 11/12/2015 10:46 PM, Michael Torrie wrote:
> On 11/12/2015 05:25 PM, Tim Daneliuk wrote:
>> On 11/11/2015 08:25 PM, Chris Angelico wrote:
>>> On Thu, Nov 12, 2015 at 12:52 PM, Tim Daneliuk
>>> <tundraBOGUS@tundraware.com> wrote:
>>>> I am the author of twander (https://www.tundraware.com/Software/twander).
>>>> This code has run flawlessly for years on FreeBSD, Linux, MacOS and
>>>> Windows.  Some months ago, I put it on a couple of VPS servers (FreeBSD
>>>> and Linux) and BOOM, it doesn't run.  I asked around here and got some
>>>> suggestions and then did some homework.
>>>>
>>>> Traceback (most recent call last):
>>>>   File "/usr/lib64/python2.6/runpy.py", line 122, in _run_module_as_main
>>>
>>> It's running here under Python 2.6. Sorry if this is a question you've
>>> already been asked, but were you successfully running under 2.6
>>> elsewhere? Might be a versioning issue.
>>>
>>> ChrisA
>>>
>>
>> It always ran OK on every previous version of Python from about 2.4 forward
>> on VMs, physicals, *nix, OSX, Windows, etc.
> 
> And other X11 apps are working fine on the test VPS where your app
> crashes? Other Tk apps?  Other Python Tk apps?
> 
> Your app runs fine on my VPS (Linode), running CentOS 7, Python 2.7.
> Also runs fine on my CentOS 6 VM (also Linode), Python 2.6.6.
> 
> I also verified that if X11 forwarding is not working, Python reports an
> exception "_tkinter.TclError: no display name and no $DISPLAY
> environment variable" immediately, so that's definitely not your problem.
> 
> 
> 

Curioser and curioser.  Yes, xterm works fine.  Dunno about any other tk apps.
Hmmmm..