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Date: Wed, 21 May 2014 11:11:02 -0500
Subject: tkinter errors out without clear message
From: Kai Song <ksong@lbl.gov>
To: python-list@python.org
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Dear Python community,

I have been trying to make Tkinter work on my Scientific Linux 6 (SL6)
system. The python version is the SL6 default Python/2.6.6, and the tkinter
is also from SL6 repository, "tkinter-2.6.6-51.el6.x86_64".

I was able to import _tkinter and Tkinter, and the _test() will bring up an
empty window, but it will then fail without any actual error message. I
think it's when it tries to create buttons. I tried to use python gdb to
debug through the code, but It's hard to pin point the problem.

Here is the output:
[kai@localhost ~ ]$ python
Python 2.6.6 (r266:84292, Nov 21 2013, 12:39:37)
[GCC 4.4.7 20120313 (Red Hat 4.4.7-3)] on linux2
Type "help", "copyright", "credits" or "license" for more information.
>>> import _tkinter
>>> import Tkinter
>>> Tkinter._test()
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
  File "/usr/lib64/python2.6/lib-tk/Tkinter.py", line 3757, in _test
    label = Label(root, text=text)
  File "/usr/lib64/python2.6/lib-tk/Tkinter.py", line 2466, in __init__
    Widget.__init__(self, master, 'label', cnf, kw)
  File "/usr/lib64/python2.6/lib-tk/Tkinter.py", line 1932, in __init__
    (widgetName, self._w) + extra + self._options(cnf))
_tkinter.TclError
>>>

I also tried to build python/2.7.5 from scratch, and this problem still
there. So, I suspect it could be due to system configuration, but without
actual error message, I don't know how to fix this. Did any of you come
across similar issues for Tkinter? Any advice would be greatly appreciated!

Thanks in advance!

Kai

-- 
Kai Song
<ksong@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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<div dir=3D"ltr">Dear Python community,<div><br></div><div>I have been tryi=
ng to make Tkinter work on my Scientific Linux 6 (SL6) system. The python v=
ersion is the SL6 default Python/2.6.6, and the tkinter is also from SL6 re=
pository, &quot;tkinter-2.6.6-51.el6.x86_64&quot;.</div>
<div><br></div><div>I was able to import _tkinter and Tkinter, and the _tes=
t() will bring up an empty window, but it will then fail without any actual=
 error message. I think it&#39;s when it tries to create buttons. I tried t=
o use python gdb to debug through the code, but It&#39;s hard to pin point =
the problem.<br clear=3D"all">
<div><br></div><div>Here is the output:</div><div><div>[kai@localhost ~ ]$ =
python</div><div>Python 2.6.6 (r266:84292, Nov 21 2013, 12:39:37)=C2=A0</di=
v><div>[GCC 4.4.7 20120313 (Red Hat 4.4.7-3)] on linux2</div><div>Type &quo=
t;help&quot;, &quot;copyright&quot;, &quot;credits&quot; or &quot;license&q=
uot; for more information.</div>
<div>&gt;&gt;&gt; import _tkinter</div><div>&gt;&gt;&gt; import Tkinter</di=
v><div>&gt;&gt;&gt; Tkinter._test()</div><div>Traceback (most recent call l=
ast):</div><div>=C2=A0 File &quot;&lt;stdin&gt;&quot;, line 1, in &lt;modul=
e&gt;</div>
<div>=C2=A0 File &quot;/usr/lib64/python2.6/lib-tk/Tkinter.py&quot;, line 3=
757, in _test</div><div>=C2=A0 =C2=A0 label =3D Label(root, text=3Dtext)</d=
iv><div>=C2=A0 File &quot;/usr/lib64/python2.6/lib-tk/Tkinter.py&quot;, lin=
e 2466, in __init__</div>
<div>=C2=A0 =C2=A0 Widget.__init__(self, master, &#39;label&#39;, cnf, kw)<=
/div><div>=C2=A0 File &quot;/usr/lib64/python2.6/lib-tk/Tkinter.py&quot;, l=
ine 1932, in __init__</div><div>=C2=A0 =C2=A0 (widgetName, self._w) + extra=
 + self._options(cnf))</div>
<div>_tkinter.TclError</div><div>&gt;&gt;&gt;=C2=A0</div></div><div><br></d=
iv><div>I also tried to build python/2.7.5 from scratch, and this problem s=
till there. So, I suspect it could be due to system configuration, but with=
out actual error message, I don&#39;t know how to fix this. Did any of you =
come across similar issues for Tkinter? Any advice would be greatly appreci=
ated!</div>
<div><br></div><div>Thanks in advance!</div><div><br></div><div>Kai</div><d=
iv><br></div>-- <br>Kai Song<br>&lt;<a href=3D"mailto:ksong@lbl.gov" target=
=3D"_blank">ksong@lbl.gov</a>&gt; 1.510.495.2180<br>1 Cyclotron Rd. Berkele=
y, CA94720, MS-50B 3209<br>
High Performance Computing Services (HPCS) <br>Lawrence Berkeley National L=
aboratory - <a href=3D"http://scs.lbl.gov" target=3D"_blank">http://scs.lbl=
.gov</a>
</div></div>

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