samba4 first time install, missing python _credentials module for provision

[Doug VanLeuven]

release-4-0-0alpha2-984-ge00c651
Using opensuse 10.3

I got past the version node not found for symbol io_cancel@@LIBAIO_0.4 by compiling fedora 8 
libaio-0.3.106-3.2 src rpm.

Trying to run setup/provision

Is there a proper way to setup the python libraries?

I located some of the python scripts referenced in provision and added to PYTHONPATH.
PYTHONPATH=/usr/local/src/samba4/source/bin/python:/usr/local/src/samba4/source/scripting/python/samba

and that resolved most module imports, but I'm stuck on

Traceback (most recent call last):
   File "setup/provision", line 25, in <module>
     import getopt
   File "/usr/local/src/samba4/source/scripting/python/samba/getopt.py", line 21, in <module>
     from credentials import Credentials
   File "/usr/local/src/samba4/source/bin/python/credentials.py", line 6, in <module>
     import _credentials
ImportError: No module named _credentials

I can't find it.

Regards, Doug