bug#57184: [PATCH] Assorted improvements to python.el

[Stefan Kangas]

close 57184 29.1
thanks

> Patch 3 seems to break "make bootstrap" with:
>
>     In toplevel form:
>     cedet/semantic/wisent/python.el:30:2: Error: Symbol’s function
> definition is void: closure
>     make[3]: *** [Makefile:321: cedet/semantic/wisent/python.elc] Error 1
>
>     In toplevel form:
>     org/ob-python.el:33:2: Error: Symbol’s function definition is void: 
> closure
>     make[3]: *** [Makefile:321: org/ob-python.elc] Error 1
>
> Could you take a look at it?

I fixed it by changing the completion-predicate lambda into a defun.
Now pushed to master with that change.  Thanks!