shpinx tips: avoid ExtBabel class error for compiling japanese latex

i don't know why below error occurs...

yaboo@sp2:~/DocProject$ make latex
sphinx-build -b latex -d _build/doctrees   . _build/latex
Running Sphinx v1.0.7
loading translations [ja]... done
loading pickled environment... done
building [latex]: all documents
updating environment: 0 added, 0 changed, 0 removed
looking for now-outdated files... none found
processing testProject.tex... index intro code bd sd 
resolving references...
writing... 
Exception occurred:
  File "/usr/local/lib/python2.6/dist-packages/Sphinx-1.0.7-py2.6.egg/sphinx/writers/latex.py", line 193, in __init__
    babel = ExtBabel(builder.config.language)
TypeError: __init__() takes exactly 3 arguments (2 given)
The full traceback has been saved in /tmp/sphinx-err-q8bibE.log, if you want to report the issue to the developers.
Please also report this if it was a user error, so that a better error message can be provided next time.
Either send bugs to the mailing list at ,
or report them in the tracker at . Thanks!
make: *** [latex] エラー 1

modify /usr/local/lib/python2.6/dist-packages/Sphinx-1.0.7-py2.6.egg/sphinx/writers/latex.py
(just comment out non-japanese process....)

if builder.config.language:
    self.elements['classoptions'] += ',english,dvipdfm'
    self.elements['babel'] += r'\newcount\pdfoutput\pdfoutput=0'
    self.elements['preamble'] += \
        r'\AtBeginDvi{\special{pdf:tounicode EUC-UCS2}}'
    self.elements['shorthandoff'] = ''
    self.elements['fncychap'] = '\\usepackage[Sonny]{fncychap}'
else: