Issue1219

I'm running Django 1.0.2 on Jython 2.5b0

I got error upon page rendering due to missing os.getcwdu function. 

To get over it I'm doing at init: os.getcwdu = os.getcwd which works fine.

"Exception Value: 'module' object has no attribute 'getcwdu'
Exception Location: 
/home/naos/software/jython2.5a3/Lib/site-packages/django/utils/_os.py in
abspathu, line 21"

Well, it is 2.5a3 in the errlog, but getcwdu is missing in 2.5b0 too.

os.getcwdu is easy to implement (avoid converting the path to a str in
its implementation in os.py), however, in order to use os.chdir to
navigate to a non ASCII path, we need to rework our path management
(functions like posixpath.realpath) so that they work with either
unicode or str.

This should be relatively isolated since file, etc., can work directly
with unicode paths.

Jim: by "work with either unicode or str" you mean that they don't
return strings when the argument is unicode?

I did some quick tests and didn't found any problems on handling unicode
paths with the existing code. Am I missing something?

OTOH, I think we should commit the trivial getcwdu code, as the lack of
that function is causing real problems out there. Then we can fix the
obscure (and potentially hard) other bugs.

Added os.getcwdu in r5950, however I'm keeping this ticket open for the
larger issues it revealed in os, specifically os.path.

I made two other little changes on r5951, related to the getcwdu
function recently implemented.

Deferring to 2.5.1

os.getcwdu() was added a long time ago, no need to keep this open