Unfortunately I was not able to narrow down to a simple code. All my
attempts failed and they worked ok. While in the big project is not
behaving correctly.
The problem I see depends on the gc. If the gc deletes first the Tk_
root window then when it tries to delete the Font.__del__, tcl fails.
Which for me is a bit puzzling since there is a backlink of the root in
the Font class.
However I saw that from python 2.6 the tkFont.Font.__del__ method has
changed with respect to the 2.4 and there is a branch to catch the
generic exception.
When I added this to the tkFont of the 2.4 it worked and absorbed all
Exceptions.
Vasilis
On 06/25/10 22:39, Michael Lange wrote:
Hi Vasilis,
On Fri, 25 Jun 2010 12:20:30 +0200
Vasilis Vlachoudis<vasilis.vlachou...@cern.ch> wrote:
Hi all,
I have a tkinter application that uses several fonts. However only
with python 2.4 when the application is closed then I get the
following exceptions (with 2.6 it works Ok)
Exception exceptions.AttributeError: "'NoneType' object has no
attribute 'TclError'" in<bound method Font.__del__ of<tkFont.Font
instance at
0x2ac0dd4c4908>> ignored
Exception exceptions.AttributeError: "'NoneType' object has no
attribute 'TclError'" in<bound method Font.__del__ of<tkFont.Font
instance at
0x2ac0dd4c4680>> ignored
and I have no way of capturing them since they arrive even after the
last line of the program.
I believe that for some reason the tkinter is deleted before and
afterwards it tries to delete the fonts and creates the TclError.
Is there a way to protect for these exceptions?
I was getting the same problem with the PhotoImage() but now I am
trying to delete all of them before the end of the program to avoid
the exceptions. However with fonts I can miss something e.g replace a
font and exit afterwards.
Can you provide a minimal code example that exhibits the problem?
Michael
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