[O] org-babel -- Improper syntax error in session mode?

[Herbert Sitz]

I have a code block that evaluates fine in non-session mode but which gives
syntax error in session mode.  Since it works fine in non-session mode I assume
this is a bug?:

----------------------------
#+begin_src python :results output :session mypy 
x = 1
for i in range(1,5):
  x = x + i
  print x
print "Did it work?"
#+end_src

#+results:
: File "<stdin>", line 4
:     print "Did it work?"
:         ^
: SyntaxError: invalid syntax
--------------------------------