Re: org-article setup

[John Hendy <jw.hendy@gmail.com>]

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On Tue, Nov 16, 2010 at 5:46 PM, Mario E. Munich <mariomu@ieee.org> wrote:

> Dear all,
>
> I am trying to use the org-article class created by Tomas Dye. As you might
> guess, I am having some trouble and thus the email. I am using emacs 23.1.1
> on Ubuntu 10.10 and org-mode verision TAG=7.3.
>
> I have followed the instructions on worg:
>
> http://orgmode.org/worg/org-contrib/babel/examples/article-class.php
>
> up to the point in which I need to tangle the org document.
>
> If I try to run the tangle command: M-x org-babel-tangle RET, I get the
> following error: No org-bable-execute function for python!
>
> I think that  the problem is that I do not have any setup for Babel in my
> .emacs, so I went to look for the standard Babel setup in the org manual and
> in worg.
>

Yup -- that's the error.


>
> - In the org Manual, I see chapter 14 devoted to Babel, but I do not see
> any information on how to set it up in my .emacs (maybe it is enabled by
> default since Babel is included in org, but I am not sure).
>
>
I concur and think that's weird. Even if it is on worg... perhaps the manual
should point there? There's a decent amount on babel in the manual so I
found it a bit odd that it didn't provide the setup syntax (like Thomas
did).


> - In worg, there is a page for Babel:
> http://orgmode.org/worg/org-contrib/babel/index.php and a corresponding
> Introductory Tutorial. In this page, there is a section called Initial
> Configuration in which there is a mention of a "five-step process", but the
> corresponding list of steps only have 3 items.
>

5 vs. 3 is kind of funny. Some of those aren't really even steps. For your
case it's as easy as opening up .emacs and adding this:

(org-babel-do-load-languages
 'org-babel-load-languages
 '((python . t)))

Though as Thomas listed, you can have more. It looks like he actually puts
his right into the org file itself with a #+src block.

As for the rest of the steps, I actually wasn't able to get it to compile. I
get a bunch of these errors:

,-----
| SyntaxError: invalid syntax
| File "<stdin>", line 17
|    print res
|            ^
| SyntaxError: invalid syntax
`-----

I think I get those to go away with "print (res)" instead of res by itself.
I think I've had that error before and it's a python version issue. I'd
suggest changing it if it's accepted by older versions since python is
perhaps moving that direction? I run Arch Linux and would guess that I may
be on a later version than a lot of distros.

I also get this at the end in the minibuffer at the very end:
,-----
| reference "gantttest" not found in this buffer
`-----

I get not class file.


>
> I would appreciate if somebody could guide me towards a simple Babel
> configuration that would help me tangle the org-article.org document.
>
>
It'd probably be a good idea for someone to clean up worg and the manual a
bit. I can do some of those things -- Thomas, perhaps you want to handle the
org-article specific things if there are some compilation issues on my end
that find fixes and I can make worg a little clearer about babel setup? Not
sure who oversees the manual, but a redirect at the least to worg for .emacs
configuration would be helpful.


John


> Thanks a lot for all the help!
>
> -Mario
>
>
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