[web2py] Cannot import module 'lpod'

[omicron]

With web2py 1.99.7 this import was Ok :
    import lpod.document as oodoc

But with version 2.2.1, I have this error :
  File "/home/myhome/Applications/web2py/gluon/custom_import.py", line 77, 
in custom_importer
    raise ImportError, 'Cannot import module %s' % str(e)
  ImportError: Cannot import module 'lpod'

But if I replace with this:
  import lpod
It's ok !!!

And, of course, in a python shell it's ok.

Thanks

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