[babel] python sessions

[Andrea Crotti <andrea.crotti.0@gmail.com>]

I wanted to use sessions in python to do some nice literate programming
and splitting functions, but it doesn't work as expected.

Here below a very simple example in python and ruby, where in ruby
everything seems to work well while in python it doesn't...
And by the way, what is that org_babel_python_eoe? I can't find it
documented anywhere in the manual...

I've read some time ago that python support for babel was a bit tricky,
are there workarounds to make it work anyway?

Or could you explain briefly what the problem is so that I can try to
contribute as soon as I finish this thing?

Thanks a lot,
Andrea

--8<---------------cut here---------------start------------->8---
#+begin_src python :session
  def var(x):
      return float(x ** 2)
  
#+end_src

#+results:
: org_babel_python_eoe

#+begin_src python :session
  def var2(x):
      return x ** 2 * var(x)
  
  var2(10)
#+end_src

#+results:
: org_babel_python_eoe

#+begin_src ruby :session
  def fun(x)
    x + 2
  end
#+end_src

#+results:
: nil

#+begin_src ruby :session
  def fun2(x)
    x + fun(x)
  end
  
  fun2 10
#+end_src

#+results:
: 22

--8<---------------cut here---------------end--------------->8---