[O] Strange python output using session

[Richard Stanton]

I get an extra blank item plus some strange formatting on my output when I use 
the :session key in a python source block. Here's a simple example showing the 
problem:

---------------

* Examples

#+BEGIN_SRC python :results output
print "hello"
print "bye"
print 2
#+END_SRC

#+RESULTS:
: hello
: bye
: 2

#+BEGIN_SRC python :results output :session
print "hello"
print "bye"
print 2
#+END_SRC

#+RESULTS:
: 
: hello
: >>> bye
: >>> 2