If current working directory contains non-ascii characters, calling
os.path.abspath(u".") will result in an error. I expect it to call the
underlying os.getcwdu() in this case.

>>> import os
>>> os.path.abspath(u".")
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
  File
"/home/packages/python-2.5.1/x86-linux/lib/python2.5/posixpath.py", line
403, in abspath
    path = join(os.getcwd(), path)
  File
"/home/packages/python-2.5.1/x86-linux/lib/python2.5/posixpath.py", line
65, in join
    path += '/' + b
UnicodeDecodeError: 'ascii' codec can't decode byte 0xe4 in position 29:
ordinal not in range(128)

It works if I do it manually, using os.getcwdu():

>>> os.path.join(os.getcwdu(), u".")
u'/disk1/chn_local/work/test/sk\xe4rg\xe5rds\xf6-latin1/.'