Beginner: problems with the win packages

[Marcos Chaves]

Hi John,

just a quick update: now I'm trying the 0.12.0 source distribution. I
applied your patch, but it didn't work. I changed the code to print
what is in _cached_user_encoding, and it prints 'cp1252', which seems
to be fine - it doesn't print 'cp0'. I just upgraded to Python 2.5
too, and the problem persists.

I hope this helps,

-Marcos

On 11/8/06, Marcos Chaves <marcos.nospam at gmail.com> wrote:
> Hi John.
>
> On 11/8/06, John Arbash Meinel <john at arbash-meinel.com> wrote:
> > Marcos Chaves wrote:
> > > Hi,
> > >
> > > I'm new to Bazaar, so I hope I'm not doing anything terrible wrong.
> > >
> > > I just installed Bazaar 0.12.0 windows installer
> > > (bzr-0.12.0.win32.exe) and I have Python 2.4.3 installed. I'm getting
> > > these errors:
> > >
> > > - - - - - 8< - - - - -
> > >
> > > C:\Python24\Scripts> bzr
> > >
> > > bzr: ERROR: exceptions.LookupError: unknown encoding: cp0
> >
> >
> > What version of Windows are you running? It sounds like you have some
> > sort of internationalized version, which is defaulting the console
> > encoding to 'cp0'.
>
> I'm running Windows XP SP2 with all the patches and upgrades (except
> for IE7 - I want to be sure it will not blow everything here).
>
> Also, I don't think I have any special encondig installed. My XP is
> in English, but I have regional settings (like numeric format) set
> to Brazilian Portuguese. Also, my keyboard is set to "United States
> - International", so I can get non-ASCII characters on a standard US
> keyboard. But that's all, I think.
>
> I already used non-ASCII characters with Python, and I just had to
> have my first line as...
>
> # coding: iso-8859-1
>
> ...and everything worked fine, also with the outputs.
>
> >
> > I can't say that I've seen that encoding before, and it would seem that
> > python hasn't either.
> >
> > The closest thing I could find using google is this link:
> > http://www.abisource.org/mailinglists/abiword-dev/01/April/0164.html
> >
> > Which says:
> >  "Exotic locales such as Hindi and Georgian cause asserts in libiconv
> >   though loading either as UTF-8 display fine. This seems to be due
> >   Windows supporting as Unicode locales only"
> >
>
> This sounds exotic to me too.
>
> >
> > and the response:
> >
> >  "Windows actually returns "CP0" for these Unicode locales. I'll look
> >   into this further tomorrow but basically it means no separate 8 bit
> >   code page exists so input and file formats are all 100% Unicode. I'm
> >   not sure what the iconv and EncodingManager ramifications of this are"
> >
> > It sounds like we should either tree 'CP0' as "ASCII", or "UTF-8". The
> > specific code which is checking this is bzrlib/osutils.py the function
> > 'get_user_encoding()'.
> >
> > Which uses 'locale.getpreferredencoding()', which I would guess is
> > querying windows for the code page, and is getting back "CP0".
> >
> > I would assume 'sys.getfilesystemencoding()' would still be returning
> > 'mbcs'. So we could still support versioning unicode filenames. But we
> > wouldn't be able to print them to the console.
> >
>
> At least for me, it does:
>
> C:\>python
> Python 2.4.3 (#69, Mar 29 2006, 17:35:34) [MSC v.1310 32 bit (Intel)] on win32
> Type "help", "copyright", "credits" or "license" for more information.
> >>> import sys
> >>> sys.getfilesystemencoding()
> 'mbcs'
> >>> ^Z
>
> >
> > Which is probably fine, since I don't think the console could print them
> > anyway.
> >
> > This patch may make it work:
> > === modified file 'bzrlib/osutils.py'
> > --- bzrlib/osutils.py   2006-11-02 07:29:02 +0000
> > +++ bzrlib/osutils.py   2006-11-08 23:03:41 +0000
> > @@ -1085,7 +1085,10 @@
> >                           "  Continuing with ascii encoding.\n"
> >                           % (e, os.environ.get('LANG')))
> >
> > -    if _cached_user_encoding is None:
> > +    # Windows returns 'cp0' to indicate there is no code page. So we'll
> > just
> > +    # treat that as ASCII, and not support printing unicode characters
> > to the
> > +    # console.
> > +    if _cached_user_encoding in (None, 'cp0'):
> >          _cached_user_encoding = 'ascii'
> >      return _cached_user_encoding
> >
> >
> > Are you comfortable playing around with python source code? I can try to
> > talk you through it if you want. (You need to use the Windows Native
> > Python-based installer, and then edit 1 file).
>
> Sure!
>
> >
> > John
> > =:->
> >
>
> Thanks for the quick reply.
>
> -Marcos
>