New submission from Terry J. Reedy:
Current 3.3.2+ repository build (32 bit) and 3.4.0a2 repository build (32 bit)
and installation (64 bit) have a problem that did not exist in my Win6 3.3.2
installation (64 bit). (Bruce Sherwood discovered the symption with some
installed version of 3.4.0a?) Adding to recent files a path with a directory or
file whose name begins with '0' causes Idle to stop with a traceback such as
given below. Currently, opening *any* file causes the recent files list to be
rebuilt (seen in traceback). So the problem happens whether one opens a new
file with a leading 0 somewhere or if there merely is one such already on the
list.
Exception in Tkinter callback
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\IOBinding.py", line 179, in open
flist.open(filename, self.loadfile)
File "C:\Python34\lib\idlelib\FileList.py", line 34, in open
return action(filename)
File "C:\Python34\lib\idlelib\IOBinding.py", line 240, in loadfile
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:
File "C:\Python34\lib\tkinter\__init__.py", line 2739, in delete
if 'command' in self.entryconfig(i):
File "C:\Python34\lib\tkinter\__init__.py", line 2749, in entryconfigure
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
'invalid start byte' 0xc0 has appeared before in other issues.
Bruce got this with
H:\HP_Documents\0PythonWork\AirplaneKinematics\accel2.py
I get 12' instead of '14' with
F:\Python\mypy\0...' (file or directory, must be 0, not 1)
It appears that the string is being improperly 're-cooked' at some point, so
that '\x' sequences are 1 position rather than 2.
At the point of failure, I believe tk is checking whether a particular menuitem
has an associated callback that should be deleted before the menuitem itself is
deleted (before later being rebuilt). (It is a separate issue of whether we
could just adjust the recent file list (sub sub menu) rather than deleting and
rebuilding it, possibly the same as it was. Even if we did, the issue would
still arise when opening a new '0' file, or when closing Idle.)
----------
messages: 197736
nosy: bsherwood, ezio.melotti, haypo, serhiy.storchaka, terry.reedy
priority: normal
severity: normal
stage: needs patch
status: open
title: Regression: Windows-tkinter-idle, unicode, and 0xxx filename
type: behavior
versions: Python 3.3, Python 3.4
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Python tracker <rep...@bugs.python.org>
<http://bugs.python.org/issue19020>
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