[ZODB-Dev] ZODB3 installation ambiguous conclusion

Ross Boylan RossBoylan at stanfordalumni.org
Sun Dec 20 15:45:03 EST 2009

easy_install ZODB3 looked fairly good during installation until  the end:
Processing transaction-1.0.0.tar.gz
Running transaction-1.0.0\setup.py -q bdist_egg --dist-dir 
Adding transaction 1.0.0 to easy-install.pth file

Installed c:\python26\lib\site-packages\transaction-1.0.0-py2.6.egg
Finished processing dependencies for ZODB3

        An optional code optimization (C extension) could not be compiled.

        Optimizations for this package will not be available!

Unable to find vcvarsall.bat
This seems to say things will work, just not as fast as they could.  But 
I'm a little puzzled why things would work at all, since I don't have a 
build environment on the machine (well, there is a compiler that's part 
of the MS SDK, but I'm not really sure how capable or operational it 
is--it did seem to compile some sample C code in the kit).

Is there a pure python fallback for the C code?  I thought ZODB had some 
C-level magic.


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