Python and return attributes in `postproxy`

[Alan DeKok]

Mike O'Connor wrote:
> It would seem as if the rlm_python does not provide the returned
> attributes from the proxy, this happens in both a patched version of
> 1.1.7 and 2.0.0.

  Yes.  It appears to convert only the request attributes to a python tuple.

  Fixing it shouldn't be hard.  As always, patches are welcome.

  Alan DeKok.