From mboxrd@z Thu Jan  1 00:00:00 1970
From: Torsten Wagner <torsten.wagner@gmail.com>
Subject: Re: [babel]: Some feedback after the first week usage
Date: Fri, 6 Nov 2009 10:34:12 +0900
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To: "Thomas S. Dye" <tsd@tsdye.com>
Cc: Org Mode Mailing List <emacs-orgmode@gnu.org>

Hi Tom

> Would something like run-code-blocks (below) do what you want?  I put  
> a source block like this at the top of my org-babel file, where I can  
> find it quickly.
> 
> #+srcrname: run-code-blocks
> #+begin_src python :noweb
> <<block-1>>
> <<block-2>>
> #+end_src
> 
> #+srcname: block-1
> #+begin_src python
> a = 1
> a
> #+end_src
> 
> #+srcname: block-2
> #+begin_src python
> b = 1
> b
> #+end_src

Actually, that is a very nice and smart idea :)
It could be something like a Makefile allowing me to switch on and off different 
blocks (e.g., for debugging if there is an error somewhere), switch between 
different blocks (e.g. real data from file and test data set) or even modify 
temporarily variables in between 

For example I could write:

#+srcrname: run-code-blocks
#+begin_src python :noweb
 # <<block-1>> # choose between real data
 <<block-test>> # and test data	
 # wondering whether it would work with negative values
 a = -1 	
 <<block-2>>
#+end_src

#+srcname: block-1
#+begin_src python
a = open("foo.txt","r")
a
#+end_src

#+srcname: block-test
#+begin_src python
a = 1
a
#+end_src

#+srcname: block-2
#+begin_src python
b = 1
b
#+end_src

Nice, will try it and many thanks for sharing

Greetings

Torsten