Python ORMs Supporting POPOs and Substituting Layers in Django

[Chris Angelico]

On Sun, Nov 6, 2011 at 7:11 AM, Travis Parks <jehugaleahsa at gmail.com> wrote:
> Finally, I wanted to ask whether anyone has tried having Django call
> out to Python 3 routines. I am okay using Python 2.7 in Django, if I
> can have the controllers call business logic implemented in Python 3,
> accepting POPOs from the data layer.

What you're going to have is completely separate processes; either
invoking Python3 and having it terminate after one action, or keeping
it running concurrently and passing data between them.

Has anyone ever extended AND embedded Python at the same time? Written
a Python module that ... executes Python code? Might be a bit tricky,
but possibly isolating the Py2 and Py3 code into different C source
files would help conserve programmer sanity (at the possible cost of
performance). Would be a tricky thing to juggle, but if you can pull
it off, you'd be able to - effectively - have a module in Django
that's written in Python 3, and directly callable.

Propagating parameters and return values would be a matter of
unpacking them into C objects and repacking them on the other side.
Propagating exceptions would be.... fun?

ChrisA