Passing variables between code blocks

Passing variables between code blocks

[Yotam Avital]

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I want to use org-mode for data analysis for my results. I also want to do
this using small chunks of code blocks for various task. To achieve that. I
need to pass dictionaries (20 entries of lists, each of several hundreds
variables, each is a list by itself). I wanted to do so by the #+CALL
option for example:


* test
  #+NAME:test
  #+BEGIN_SRC python
    vars = dict()
    vars[1] = 1
    vars[2] = 2
    return vars

  #+END_SRC

* caller
  #+NAME: caller
  #+HEADER: :var ins=#+CALL: test()
  #+BEGIN_SRC python :results output
    print files

  #+END_SRC

But I get an error:

  File "<stdin>", line 1
    files=[1:, 1, 2:, 2]
            ^
SyntaxError: invalid syntax

Is there a way to pass a dictionary as a variables between blocks then?



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Re: Passing variables between code blocks

[Thomas S. Dye]

Hi Yatam Avital,

Yotam Avital <yotama9@gmail.com> writes:

> I want to use org-mode for data analysis for my results. I also want to do
> this using small chunks of code blocks for various task. To achieve that. I
> need to pass dictionaries (20 entries of lists, each of several hundreds
> variables, each is a list by itself). I wanted to do so by the #+CALL
> option for example:
>
>
> * test
>   #+NAME:test
>   #+BEGIN_SRC python
>     vars = dict()
>     vars[1] = 1
>     vars[2] = 2
>     return vars
>
>   #+END_SRC
>
> * caller
>   #+NAME: caller
>   #+HEADER: :var ins=#+CALL: test()
>   #+BEGIN_SRC python :results output
>     print files
>
>   #+END_SRC

You have the wrong syntax.  There is no need for #+CALL: in this
situation.

See section 14.8.2.1 of the manual:

code block without arguments
a code block name (from the example above), as assigned by #+NAME:, optionally followed by parentheses
          #+BEGIN_SRC emacs-lisp :var length=table-length()
          (* 2 length)
          #+END_SRC

hth,
Tom

-- 
Thomas S. Dye
http://www.tsdye.com