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From: Tim Daneliuk <tundraBOGUS@tundraware.com>
Newsgroups: comp.lang.python
Subject: More tkinter Madness
Date: Wed, 11 Nov 2015 19:52:38 -0600
Organization: A noiseless patient Spider
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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.

I see the error being thrown by using the trace module, but it's not 
terribly meaningful to me.  Any ideas of what this means - again,
I emphasize this is only happening on VPS hosts:

 --- modulename: Tkinter, funcname: _cnfmerge
Tkinter.py(76):     if type(cnfs) is DictionaryType:
Tkinter.py(77):         return cnfs
Tkinter.py(1046):         res = ()
Tkinter.py(1047):         for k, v in cnf.items():
Tkinter.py(1048):             if v is not None:
Tkinter.py(1049):                 if k[-1] == '_': k = k[:-1]
Tkinter.py(1050):                 if callable(v):
Tkinter.py(1052):                 elif isinstance(v, (tuple, list)):
Tkinter.py(1064):                 res = res + ('-'+k, v)
Tkinter.py(1047):         for k, v in cnf.items():
Tkinter.py(1048):             if v is not None:
Tkinter.py(1049):                 if k[-1] == '_': k = k[:-1]
Tkinter.py(1050):                 if callable(v):
Tkinter.py(1052):                 elif isinstance(v, (tuple, list)):
Tkinter.py(1064):                 res = res + ('-'+k, v)
Tkinter.py(1047):         for k, v in cnf.items():
Tkinter.py(1048):             if v is not None:
Tkinter.py(1049):                 if k[-1] == '_': k = k[:-1]
Tkinter.py(1050):                 if callable(v):
Tkinter.py(1052):                 elif isinstance(v, (tuple, list)):
Tkinter.py(1064):                 res = res + ('-'+k, v)
Tkinter.py(1047):         for k, v in cnf.items():
Tkinter.py(1065):         return res
Traceback (most recent call last):
  File "/usr/lib64/python2.6/runpy.py", line 122, in _run_module_as_main
    "__main__", fname, loader, pkg_name)
  File "/usr/lib64/python2.6/runpy.py", line 34, in _run_code
    exec code in run_globals
  File "/usr/lib64/python2.6/trace.py", line 823, in <module>
    main()
  File "/usr/lib64/python2.6/trace.py", line 811, in main
    t.runctx(code, globs, globs)
  File "/usr/lib64/python2.6/trace.py", line 512, in runctx
    exec cmd in globals, locals
  File "/local/TundraWare/bin/twander.py", line 5464, in <module>
    UI = twanderUI(UIroot)
  File "/local/TundraWare/bin/twander.py", line 2152, in __init__
    self.CmdBtn = Menubutton(self.mBar, text=COMMANDMENU, underline=0, state=DISABLED)
  File "/usr/lib64/python2.6/lib-tk/Tkinter.py", line 2710, in __init__
    Widget.__init__(self, master, 'menubutton', cnf, kw)
  File "/usr/lib64/python2.6/lib-tk/Tkinter.py", line 1932, in __init__
    (widgetName, self._w) + extra + self._options(cnf))
_tkinter.TclError