Appengine mercurial error

Question

I am trying to deploy mercurial for google app engine and keep getting this error. Please see if anyone has a solution.

<type 'exceptions.ImportError'>: No module named pwd
Traceback (most recent call last):
  File "/base/data/home/apps/ajatus-graphics/2.339364808142331297/hgapp.py", line 33, in <module>
    main()
  File "/base/data/home/apps/ajatus-graphics/2.339364808142331297/hgapp.py", line 23, in main
    from dashboard import dashboard
  File "/base/data/home/apps/ajatus-graphics/2.339364808142331297/dashboard.py", line 3, in <module>
    from mercurial import templater, templatefilters, util
  File "/base/python_dist/lib/python2.5/py_zipimport.py", line 242, in load_module
    exec code in mod.__dict__
  File "/base/data/home/apps/ajatus-graphics/2.339364808142331297/hg.zip/mercurial/templater.py", line 10, in <module>
  File "/base/python_dist/lib/python2.5/py_zipimport.py", line 242, in load_module
    exec code in mod.__dict__
  File "/base/data/home/apps/ajatus-graphics/2.339364808142331297/hg.zip/mercurial/util.py", line 543, in <module>
  File "/base/python_dist/lib/python2.5/py_zipimport.py", line 242, in load_module
    exec code in mod.__dict__
  File "/base/data/home/apps/ajatus-graphics/2.339364808142331297/hg.zip/mercurial/posix.py", line 10, in <module>

Answer 1

You can't access the unix password database in the App Engine sandbox, so the pwd module isn't installed.

In general, many random python modules will require extensive hacking to get them to run on App Engine.

Answer 2

maybe one of these projects will be of use?

1. http://bitbucket.org/durin42/mercurial-appengine/overview

2. http://appgallery.appspot.com/about_app?app_id=agphcHBnYWxsZXJ5chQLEgxBcHBsaWNhdGlvbnMYne8BDA (see also http://www.selenic.com/pipermail/mercurial/2008-December/022692.html )