Terry J. Reedy added the comment:
Because model is normal (as far as I know) I did not understand that 'continue
to write' meant doing so without hitting [Cancel] ;-). I might consider being
able to do so a feature *if* the dialog were the only one ever created and if
subsequent attempts to close merely shifted focus back to the dialog.
However, after shifting focus back to the edit window without hitting [Cancel]
and hitting [X] again, I get a *duplicate* "Save on Close" dialog. This is a
bug somewhere. I get this duplication on 2.7.4a1 and 3.4a0 also. Only the last
dialog created works to close the window.
On 3.3, after closing the edit window with the last dialog [No], I can
duplicate the unexpected Idle exit by selecting any of the 3 choices in the
previous dialog. This is a second and more serious bug. I do not see this with
2.7.
When I run 3.3 Idle from the console interpreter with 'import idlelib.idle',
the Shell window does not close, mimicking 2.7.
The console displays '''
Exception in Tkinter callback
Traceback (most recent call last):
File "C:\Python33\lib\tkinter\__init__.py", line 1475, in __call__
return self.func(*args)
File "C:\Python33\lib\idlelib\EditorWindow.py", line 996, in close
reply = self.maybesave()
File "C:\Python33\lib\idlelib\EditorWindow.py", line 993, in maybesave
return self.io.maybesave()
File "C:\Python33\lib\idlelib\IOBinding.py", line 331, in maybesave
self.text.focus_set()
AttributeError: 'NoneType' object has no attribute 'focus_set'
'''
Running 2.7 shows the same message. So this AttributeError seems not to be the
exception causing Idle 3.3 to quit when run otherwise.
----------
versions: +Python 2.7, Python 3.4
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<http://bugs.python.org/issue17822>
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