Evaluating python code blocks in python-mode

[Yuri D'Elia <wavexx@thregr.org>]

Hi everyone,

I'd like some advice about using python-mode with a python subprocess.
I always preferred to use emacs+file+external process as opposed to use
an ipython's notebook-like interface: it's just more convenient,
especially when debugging existing code.

I often use the same setup when doing some analysis, and this is when an
inotebook-like interface is more convenient for evaluation: I'd like to
evaluate code not line-by-line, or by defun, but by my custom-defined
blocks. I realized I was continuously selecting a region, and using
py-send-region over and over.

Right now I narrow to the region I'm editing, and use py-send-buffer
instead. It's ok-eish, but narrow/widen narrow/widen, while less common,
is still inconvenient.

I've seen people using org-mode for this kind of setup instead. Which
might be ok, but I'd like to know what other choices I could have as well.

I was thinking of defining a custom region using comments, and defining
my own py-send-custom-block using comment markers as boundaries. Surely,
something like this must already exists.