Hi, I'm trying to include python source code in my document and I'm finding that org-babel-execute-buffer ( as well as C-c C-c at the end of a code block) does not successfully run my code, instead I get an error "Invalid function: org-save-outline-visibility". I saw messages earlier
http://thread.gmane.org/gmane.emacs.orgmode/28048/focus=28049 regarding an apparently similar problem but my understanding of emacs lisp is insufficient for me to make sense of it. My program: #+BEGIN_SRC python print "Hello World" return 1+2 #+END_SRC I also have trouble getting tangle to work. With the following problem #+BEGIN_SRC python :tangle yes print "Hello World" return 1+2 #+END_SRC both C-c C-v t and M-x org-babel-tangle fail saying that 0 blocks have been tangled. I also tried the examples with the #+BEGIN_SRC and #+END_SRC being in lowercase and that didn't change anything.
