#+Title: Python Sessions

Works with an un-named session.
#+begin_src python :session
  x = 1 + 2
  x
#+end_src

#+RESULTS:
: 3

#+begin_src python :session
  x
#+end_src

#+RESULTS:
: 3

Works with a named session.
#+begin_src python :session foo
  x = 9
  x
#+end_src

#+RESULTS:
: 9

#+begin_src python :session foo
  x
#+end_src

#+RESULTS:
: 9

Notice that the un-named session still has the desired value.
#+begin_src python :session
x
#+end_src

#+RESULTS:
: 3