** Python requires a utf-8 coding prefix
   :PROPERTIES:
   :DATE:     2010-12-02
   :END:
#+begin_src python :prefix # -*- coding: utf-8 -*- :return s
s = "é"
#+end_src

#+name:
: é

#+begin_src python :prefix # -*- coding: utf-8 -*- :results output
s = "é"
print(s)
#+end_src

#+name:
: é