id	summary	reporter	owner	description	type	status	priority	milestone	component	version	resolution	keywords	cc	launchpad_bug
1483	str(NoSuchChildError(nonascii)) raises an exception, causing the actual name to be lost in tracebacks	davidsarah	davidsarah	"{{{
C:\tahoe\furry>bin\tahoe debug repl
Python 2.7.1 (r271:86832, Nov 27 2010, 18:30:46) [MSC v.1500 32 bit (Intel)] on win32
Type ""help"", ""copyright"", ""credits"" or ""license"" for more information.
(InteractiveConsole)
>>> from allmydata.interfaces import NoSuchChildError
>>> str(NoSuchChildError(u'\u2621'))
Traceback (most recent call last):
  File ""<console>"", line 1, in <module>
UnicodeEncodeError: 'ascii' codec can't encode character u'\u2621' in position 0: ordinal not in range(128)
}}}

Despite this, Twisted trial usually manages to print tracebacks in unit test errors successfully. However it still causes ugliness and loss of information, for example:
{{{
[ERROR]
Traceback (most recent call last):
  File ""c:\tahoe\furry\src\allmydata\dirnode.py"", line 444, in _get
    raise NoSuchChildError(name)
allmydata.interfaces.NoSuchChildError: <NoSuchChildError instance at 0x226b558 with str error:
 Traceback (most recent call last):
  File ""C:\Python27\lib\site-packages\twisted-10.2.0-py2.7-win32.egg\twisted\python\reflect.py"", line 546, in _safeFormat
    return formatter(o)
UnicodeEncodeError: 'ascii' codec can't encode character u'\xf8' in position 1: ordinal not in range
(128)
>
}}}"	defect	closed	minor	1.9.2	code	1.8.3	fixed	error reviewed	zooko