#23265: Django don't start on French Windows with Python 2.7 (but only in
February,
August and December!)
-------------------------------------+-------------------------------------
Reporter: SpaceFox | Owner: nobody
Type: Uncategorized | Status: new
Component: Core (Management | Version: 1.6
commands) | Resolution:
Severity: Normal | Triage Stage:
Keywords: | Unreviewed
Has patch: 0 | Needs documentation: 0
Needs tests: 0 | Patch needs improvement: 0
Easy pickings: 0 | UI/UX: 0
-------------------------------------+-------------------------------------
Changes (by SpaceFox):
* needs_better_patch: => 0
* needs_docs: => 0
* needs_tests: => 0
Comment:
Replying to [ticket:23265 SpaceFox]:
> On Windows / Python 2.7, if Django is set to use the French locale
("fra"), an UTF8 encoding error prevents it to start with this stack
trace:
>
>
> {{{
> Validating models...
>
> 0 errors found
> Unhandled exception in thread started by <function wrapper at
0x0000000003F33B38>
> Traceback (most recent call last):
> File "C:\Users\SpaceFox\.virtualenvs\zdsenv\lib\site-
packages\django\utils\autoreload.py", line 93, in wrapper
> fn(*args, **kwargs)
> File "C:\Users\SpaceFox\.virtualenvs\zdsenv\lib\site-
packages\django\core\management\commands\runserver.py", line 104,
> in inner_run
> now = now.decode('utf-8')
> File "C:\Users\SpaceFox\.virtualenvs\zdsenv\lib\encodings\utf_8.py",
line 16, in decode
> return codecs.utf_8_decode(input, errors, True)
> UnicodeDecodeError: 'utf8' codec can't decode byte 0xfb in position 2:
invalid start byte
> }}}
>
> How to reproduce this:
>
> - Windows (tested on Windows 8.1 x64), all updates OK
> - Python 2.7 (Python 2.7.8 (default, Jun 30 2014, 16:08:48) [MSC v.1500
64 bit (AMD64)] on win32)
> - Django 1.6.5
> - In settings.py, set locale to "fra":
{{{locale.setlocale(locale.LC_TIME, 'fra')}}}
> - Try to launch Django with {{{python manage.py runserver}}}. Kabooom!
>
> The problem comes for the django/core/management/commands/runserver.py
line 102 to 104 :
>
> {{{
> now = datetime.now().strftime('%B %d, %Y - %X')
> if six.PY2:
> now = now.decode('utf-8')
> }}}
>
> These 3 lines suppose the strftime method returns an UTF-8 string...
this is false when Django runs on Windows with Python 2.7.
>
> In French language, 3 month names have non-ASCII characters: "février",
"août" and "décembre" (February, August and December).
>
> With described parameters, {{{now}}} is set as "ao¹t 09, 2014 -
00:56:41". The crap that replaces the "û" character in "août" contains the
0xfb character, which is illegal in UTF-8. This create the crash.
>
> The problem is the same in February and December due to the 0xe9 byte in
{{{now}}}, caused by the "é" character.
>
> With other non-ASCII characters, this may "work" as long as there is no
illegal byte in the given string: the output of this function will be
broken (not what is expected) but there will be no exception thrown.
>
> I don't know how to correct this, therefore I can't provide any patch.
--
Ticket URL: <https://code.djangoproject.com/ticket/23265#comment:1>
Django <https://code.djangoproject.com/>
The Web framework for perfectionists with deadlines.
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