Is there anyway to edit a source code block with the context of all other
source code blocks in the same session?  Specifically when working with
Python I'd like features like company to be able to use the rest of the
code in the session.

For example consider the following org file:

#+begin_src python :tangle yes :session my_session
  var = 'variable'

  var_upper = var.
#+end_src

#+begin_src python :tangle yes :session my_session
  var_lower = var.
#+end_src

If I call `org-edit-src-code` on the first block and move the point to
after the dot in "var." and call `elpy-company-backend` I get suggestions
of all methods associated with strings in Python.  However if I do the same
in the second code block I get the message "No completion found".

Is there any solution to this issue?

-- 
Thanks,
Kevin Foley