[python-ldap] One vote for 3.x

[Ilya Etingof]

> 1) Start by either getting _ldap.so to work with python 3.x, *OR*
> replace _ldap.so with pure python calling 'ctypes' that maintains close
> to the same interface.  The latter will probably be quicker to develop.
> The former will work on less loved OSes like AIX.

In the former case it might be more easier and robust to use pyasn1 than 
ctypes. BTW, pyasn1 seems to already be used in python-ldap for LDAP 
Controls.

-ilya