[Idle-dev] Python 3.4.0 alpha 2 available

[Terry Reedy]

On 9/10/2013 6:20 PM, Bruce Sherwood wrote:
> Here's what I see. Make any sense?
>
> C:\Python34>python -m idlelib

Do you see Idle at all? If so, what do you see, and did you click 
anything to get this?

> Exception in Tkinter callback

Exceptions in callbacks are  nuisance ;-)

> Traceback (most recent call last):
>    File "C:\Python34\lib\tkinter\__init__.py", line 1475, in __call__
>      return self.func(*args)
>    File "C:\Python34\lib\idlelib\MultiCall.py", line 166, in handler
>      r = l[i](event)
>    File "C:\Python34\lib\idlelib\ScriptBinding.py", line 127, in
> run_module_event
>      return self._run_module_event(event)
>    File "C:\Python34\lib\idlelib\ScriptBinding.py", line 138, in
> _run_module_event

I believe this implements 'Run (F5)', which suggests that you invoked this.

>      filename = self.getfilename()
>    File "C:\Python34\lib\idlelib\ScriptBinding.py", line 190, in getfilename
>      self.editwin.io.save(None)

         filename = self.editwin.io.filename
         if not self.editwin.get_saved():
             autosave = idleConf.GetOption('main', 'General',
                                           'autosave', type='bool')
             if autosave and filename:
                 self.editwin.io.save(None)

It sees that you set autosave True. I presume None means do not ask for 
a name since there already is one.

>    File "C:\Python34\lib\idlelib\IOBinding.py", line 335, in save
>      self.save_as(event)
>    File "C:\Python34\lib\idlelib\IOBinding.py", line 357, in save_as
>      self.updaterecentfileslist(filename)
>    File "C:\Python34\lib\idlelib\IOBinding.py", line 521, in
> updaterecentfileslist
>      self.editwin.update_recent_files_list(filename)
>    File "C:\Python34\lib\idlelib\EditorWindow.py", line 915, in
> update_recent_files_list
>      menu.delete(0, END)  # clear, and rebuild:

This must be the Recent files sub-sub-menu, a tk widget. (I have not 
looked at Menu widgets at all.) The file saved gets added or moved to 
the top. It is odd that failure happen during deletion.

>    File "C:\Python34\lib\tkinter\__init__.py", line 2739, in delete
>      if 'command' in self.entryconfig(i):

Looking for a command associated with the menu entry; will delete if 
there is. Indeed, there should be, as each menu entry has a callback to 
open the file in an edit window. This is set in update_recent_files_list 
as part of rebuilding.

>    File "C:\Python34\lib\tkinter\__init__.py", line 2749, in entryconfigure

Another Menu method.

>      return self._configure(('entryconfigure', index), cnf, kw)
>    File "C:\Python34\lib\tkinter\__init__.py", line 1247, in _configure
>      self.tk.call(_flatten((self._w, cmd)))):
> UnicodeDecodeError: 'utf-8' codec can't decode byte 0xc0 in position 14:
> invalid start byte

This does not say what string it found an error in. 'entryconfigure' has 
14 chars, so it does not have a position 14.
Does your recent file list (in .idlerc) have any names with non-ascii chars?
 >>> b'\xc0'.decode('latin-1')
'À'
Perhaps Vidle encodes to something other than utf-8.

-- 
Terry Jan Reedy