[pycrypto] Once again: Python3 with PyCrypto

[Thorsten Behrens]

> Any modern Linux distro will do.  I typically just build the older (and
> newer) Python distributions from source, like this:
Thanks. I've found an old copy of Visual C++ Toolkit 2003 and augmented 
it with SDKs. I can build and test against Python21, now. If that ever 
gets too cumbersome, I'll definitely fall back to the Linux method. It 
sounds a lot cleaner.

On that note: The recent commits check out against Python21.

Yours
Thorsten