[issue22085] Drop support of Tk 8.3

[Ned Deily]

Ned Deily added the comment:

The checkin seems to have broken test_idle and test_ttk_guionly.  Typical failure:

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ERROR: test_horizontal_range (tkinter.test.test_ttk.test_extensions.LabeledScaleTest)
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Traceback (most recent call last):
  File "/py/dev/3x/root/fwn/Library/Frameworks/pytest_10.9.framework/Versions/3.5/lib/python3.5/tkinter/test/test_ttk/test_extensions.py", line 112, in test_horizontal_range
    lscale = ttk.LabeledScale(from_=0, to=10)
  File "/py/dev/3x/root/fwn/Library/Frameworks/pytest_10.9.framework/Versions/3.5/lib/python3.5/tkinter/ttk.py", line 1508, in __init__
    self.__tracecb = self._variable.trace_variable('w', self._adjust)
  File "/py/dev/3x/root/fwn/Library/Frameworks/pytest_10.9.framework/Versions/3.5/lib/python3.5/tkinter/__init__.py", line 248, in trace_variable
    self._tk.call("trace", "add", "variable", self._name, mode, cbname)
_tkinter.TclError: bad operation "w": must be array, read, unset, or write

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resolution: fixed -> 
stage: resolved -> needs patch
status: closed -> open

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Python tracker <report at bugs.python.org>
<http://bugs.python.org/issue22085>
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