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Questions tagged [org-babel]

feature of Org mode that handles source code for multiple languages. It can execute source code from within Org mode documents, making it convenient for producing literate programming documents and managing reproducible research. Note that Org-babel is now incorporated into Org-mode as 'working with source code' and no longer a separate extension.

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Quickly insert source blocks in org mode

org-mode has the ability to render source code, with blocks of the following syntax: #+NAME: <name> #+BEGIN_SRC <language> <switches> <header arguments> <body> #+...
Matthew Piziak's user avatar
12 votes
0 answers
1k views

Edebug orgmode source code blocks with input variables

What is the standard method to debug emacs-lisp orgmode source code blocks with input variables as header arguments? I found the hacky solution to insert the following snipped in front of a source ...
Tobias's user avatar
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45 votes
6 answers
12k views

Org-mode 9: unable to eval code-blocks

My Emacs config lives inside of a .org file from which I tangle source blocks to a .el file. I could evaluate source blocks with C-c C-c Today I updated to org-mode version 9 from org elpa and now ...
rrogg's user avatar
  • 595
21 votes
2 answers
6k views

Using Org Babel to tangle to a variable file name

If I have a code snippet that I tangle to a file, but I expect the file name to change over time, Is there a cleaner way to change the filename than Query-replace? For example, say I tangle code to ~/...
Gambo's user avatar
  • 939
16 votes
1 answer
723 views

Generating output in a different language with org mode

Given the following is intended to generate C++ code: #+BEGIN_SRC python :exports both :results output code print "struct Whatever{};" #+END_SRC The result is inserted as follows: #+RESULTS: #+...
Sohail's user avatar
  • 503
10 votes
2 answers
2k views

Config, examples and use cases of Library Of Babel

I want to understand how org-babel's Library Of Babel works. Seems like a powerful yet underused tool. The documentation says that I can add code to the library, by first saving the code in ...
Daniel's user avatar
  • 3,653
56 votes
6 answers
22k views

Can I use org-mode to structure my .emacs or other .el configuration file?

My .emacs configuration file gets bigger and bigger and I'd like to get a better overview and structuring by adding headings, subheadings and being able to hide or show them like I can do with Emacs ...
MostlyHarmless's user avatar
24 votes
2 answers
8k views

How to specify default header arguments in orgmode code blocks

I'm tying to set default header arguments to the code blocks within my org file, like this: #+PROPERTY: header-args :session *my_python_session* #+PROPERTY: header-args :results silent #+PROPERTY: ...
andreas-h's user avatar
  • 1,569
23 votes
2 answers
21k views

"no org-babel-execute function for c" and "no-org-babel-execute function for c++"

my emacs version is 24.3.1. i understand i have to put the ob-C.el (available from here) in a path where Emacs can read it. i first copy-pasted the code from that .el file to my .emacs file and ...
Arjun J Rao's user avatar
11 votes
3 answers
5k views

How to change Org-mode babel tangle write to file way as append instead of override by default?

By default, Org-mode will override current babel src block content on file original content (when the file already has content). For example, I have an org-mode file content as the bellowing block: #...
stardiviner's user avatar
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10 votes
1 answer
2k views

Can Org Babel conditionally tangle code blocks based on system-type?

Edit: While I'm still learning the ropes of Babel, I've read about the system-type, emacs-version, and window-system variables, which sound like they contain all the information I need to get the ...
Dan's user avatar
  • 243
2 votes
1 answer
293 views

How to use ,var-name (defvar) syntax in org-publish-project-alist? Init file is in form of org-mode

I have following function as part of my emacs configuration.org settings for publishing org to html. (defvar website-html-preamble "<nav> <ul class="nav nav-tabs"> <li role="...
Rahuketu86's user avatar
14 votes
1 answer
7k views

What is the difference between sh and shell for org-babel?

I'm experimenting with sourcing data from org-mode into my shell scripts and I've run across a weirdness: #+tblname: simple-table | 1 | | 2 | | 3 | | 4 | | 5 | #+name: work-with-simple-list-shell #+...
stsquad's user avatar
  • 4,661
12 votes
4 answers
3k views

Org Mode Babel - Interactive code block evaluation

I would like to evaluate in org mode source code blocks in C++ containing "cin" instructions but I can't find a way to have an interactive evaluation (with user input) during evaluation. Example of ...
Lgen's user avatar
  • 1,420
11 votes
1 answer
2k views

How to turn off `emacs-lisp-checkdoc` of flycheck when edit source block in org-mode file?

I have a emacs-lisp block in org-mode and when I try to edit it by press C-c ', flycheck always report errors as below: 0 warning The first line should be of the form: ";;; package --- ...
Enze Chi's user avatar
  • 1,470
8 votes
5 answers
5k views

Get pandas data-frame as a table in org-babel

In the following example, I create a very simple pandas DataFrame and export results verbatim: #+BEGIN_SRC python :exports both :results verbatim :return test import pandas as pd test = pd.DataFrame({...
Daniel's user avatar
  • 3,653
8 votes
1 answer
4k views

Org-babel invoking cmd.exe

Is there a simple configuration to get org-babel to invoke cmd.exe that doesn't involve modifying the org-babel source? Googling for ["org-babel" sh "cmd"] finds this email list discussion from 2010: ...
Sam Hasler's user avatar
7 votes
1 answer
4k views

Specify global tangle file for source code export in Org mode 8.x

I want to specify a default output file for all my tangle exports. I'm using Org mode 8.x. (For Org mode ≥9.0, see How to tangle all code blocks to a common file) This works: #+BEGIN_SRC js :tangle "...
vt5491's user avatar
  • 303
7 votes
1 answer
5k views

Exporting code blocks to pdf via LaTeX

I am writing a report in org mode and would like to show some code blocks as seen in so many tutorials. Here is some official documentation, however it was written for org-mode 6.xx back in 2011. I ...
n1k31t4's user avatar
  • 689
6 votes
1 answer
2k views

org-edit-src-code Do not pop a new window, use the current one

When I call org-edit-src-code to edit a SRC code on a buffer with the proper major mode, I get a new window configuration. For example, if I have windows 1|2, org-edit-src-code will delete window 2 ...
Daniel's user avatar
  • 3,653
5 votes
1 answer
2k views

Passing variable into a org babel code on export

I can't seem to get the variable to expand into src block #+BEGIN_SRC conf :tangle ~/.config/mine.conf :var argument=abcde setting1 1234 setting2 argument #+END_SRC When I export the file for ...
Mehmet Tekman's user avatar
5 votes
2 answers
2k views

Running elisp within an orgmode code block

Consider the following elisp source code within a .org file: #+BEGIN_SRC elisp :results silent (delete-other-windows) (split-window-right) (switch-to-buffer-other-window '"*Python*") #+END_SRC This ...
Guilherme Salomé's user avatar
3 votes
2 answers
2k views

Org mode converting spaces to tabs when evaluating source?

I am testing out the Babel feature in org-mode, with this small block. #+BEGIN_SRC sh :results verbatim :exports both banner -w 35 e ...
Charles's user avatar
  • 76
2 votes
1 answer
410 views

How to pass newline ("\n") string to noweb <<call>>

Trying to pass multiline argument to Org code block. If make direct call of block then it's Ok. But when call it through noweb ref then Error raised #+NAME: pr #+BEGIN_SRC elisp :results value :var n=...
Dima Fomin's user avatar
26 votes
2 answers
6k views

Python org-mode source block output is always ': None'

This is my source block: #+BEGIN_SRC python print "hello" #+END_SRC The output is always: #+RESULTS: : None This is my org-babel configuration: (org-babel-do-load-languages 'org-babel-load-...
Empty_Mind's user avatar
  • 1,371
19 votes
1 answer
1k views

Set default language for code-blocks in orgmode

Is there a way to define a default language for org-mode code blocks in the docuement header? Usually, within one org document, I only use one programming language, so it's getting tiresome to always ...
andreas-h's user avatar
  • 1,569
18 votes
2 answers
5k views

Display errors and warnings in an org-mode code block

I would like to be able to report warnings and errors when evaluating a Python code block in an Org file. When a code block has Python syntax errors, Org helpfully pops them up in a separate ...
user avatar
16 votes
2 answers
3k views

Debugging code blocks in org mode

Are there any tools available to make tracing errors in org-mode blocks easier? (I'm working with python specifically) My current workflow is to copy code that works to a source block, and try to ...
user2699's user avatar
  • 2,251
14 votes
3 answers
3k views

Code-block specific interpreter in Org Babel

Is it possible to have, in the same org file, two code blocks in the same language that are run in different interpreters by specifying different options at the top of the code block?
cefstat's user avatar
  • 251
13 votes
3 answers
2k views

Syncing changes on a tangled file back to the original org file

I am using org-mode with fountain mode to write a screenplay. Org for organization and fountain for screenplay formatting. This is the code I use for this purpose : Settings for working with (...
curious-scribbler's user avatar
12 votes
2 answers
1k views

Generating tables with headers from code block

I would like to generate tables that have headers from code blocks. Something like this: #+BEGIN_SRC emacs-lisp :results value table :table-header | First | Second | (identity '((a b) (c d))) #+...
tarsius's user avatar
  • 25.8k
10 votes
3 answers
706 views

Editing multiple source blocks in one buffer

I've got multiple source blocks which are all tangled to the same file. When I invoke C-c ' inside one block, only this specific block is shown in a new buffer. Is there a possibility to show all ...
beyeran's user avatar
  • 231
9 votes
2 answers
2k views

Programmatically read and set buffer-wide org-mode property

How one can programmatically read and set a buffer-wide org-mode property? I am aware of this, which points to (org-entry-put POM "PWE-1" "47") but it does not seem useful in case ...
gsl's user avatar
  • 1,772
9 votes
2 answers
2k views

How to automatically tangle another source block to file when evaluate a source block in org-mode?

The source block what I want to evaluate (src2) need to source a file which should be the tangle result of another source block (src1). How could it make the tangle to file automatically everything ...
Enze Chi's user avatar
  • 1,470
9 votes
1 answer
2k views

Code blocks that produce org tables to be later consumed by other code blocks

I am having a bit of trouble with code blocks that produce org tables to be later consumed by other code blocks. For example: #+NAME: upper_air #+BEGIN_SRC clojure :results output raw (clojure....
Julien Chastang's user avatar
9 votes
3 answers
2k views

Is it possible to enable minor modes in org babel blocks?

I use org-edit-special and it's really convenient, when editing source code, that's stored in org files. However I often only want to copy some code and I'm used to the highlighting of highlight-...
bertfred's user avatar
  • 1,729
9 votes
1 answer
3k views

How to display both output and value results in org mode for a source code block?

I have the following: #+BEGIN_SRC lisp :results value (dolist (x '(1 2 3)) (print x)) #+END_SRC #+RESULTS: : NIL I want my results block to contain both the output and the value for my ...
Allama's user avatar
  • 93
8 votes
3 answers
2k views

Tangle Org file containing #+INCLUDE directives and multiple tangle targets

Context I'm using org-babel-tangle to generate my configuration from an Org file config.org. Recently, I did some clean-up by dispatching config.org to multiple Org files config/*.org; replace the ...
Firmin Martin's user avatar
8 votes
1 answer
3k views

Execute src block on org mode export

I have some sort of fundamental confusion about using src blocks in org mode. I define a custom latex class in an emacs-lisp src block at the top of my org file. Export fails however, unless I ...
jake's user avatar
  • 245
8 votes
2 answers
1k views

Is it possible to have shared #+PROPERTY: between multiple org files?

I'm working with org-mode and org-babel to query a PostgreSQL database. It's pretty cool setup and I love it. At the moment, I have multiple org files with the same database property configuration ...
WarFox's user avatar
  • 251
8 votes
1 answer
1k views

Org-mode code blocks do not inherit variable properties from enclosing nodes

When playing with the literate aspects of Org-mode I found a description here of how you can set up a var property of a node and how this would then be inherited by enclosed code blocks as a variable ...
Wojciech Gac's user avatar
7 votes
1 answer
898 views

Returning org-babel results from an asynchronous call

I'm currently experimenting with moving more of my development workflow into org-mode so I can keep better track of what testing I've done. However some of the steps involve asynchronous calls to RPC ...
stsquad's user avatar
  • 4,661
7 votes
1 answer
530 views

One-liner org source tangle

At times, especially when taking notes, a literate org file can contain one-line source blocks, as follows: * Taking notes :PROPERTIES: :tangle: whatever.pl :comments: org :END: Perl set command #+...
deejay's user avatar
  • 193
7 votes
1 answer
6k views

Using File Local Variables in org-mode

Is there a way to use file local variables set in an org-mode file in the following contexts: Simply expanding the variable when text is exported (eg: to LaTeX) Passing the value to :var in a babel ...
PeterT's user avatar
  • 73
7 votes
2 answers
3k views

How can I customize the LaTeX export of org babel #+RESULTS?

I regularly use org-mode and org-babel to create e.g. exercises or proof-of-principle documents which I export to PDF via the LaTeX exporter. I noticed that the #RESULTS generated by a #+begin_src-#+...
ph0t0nix's user avatar
  • 1,119
6 votes
1 answer
2k views

Centered figures in org-mode LaTeX export

When org-mode exports figures to LaTeX, the figure shows up left justified. Is there an easy way to have all the figures centered? I want to avoid having to type #+ATTR_LATEX: :float t above each ...
scaramouche's user avatar
  • 1,754
6 votes
1 answer
1k views

Org-Mode: Using Source Code Blocks in Table Formulas

I would like to use source code blocks in org-mode table formulas using something similar to: #+NAME: square #+BEGIN_SRC python :var x=0 return x**2 #+END_SRC | 1 | 1 | | 2 | 4 | | 3 | 9 | #+TBLFM: $...
castle-bravo's user avatar
6 votes
1 answer
352 views

Using org-table data for R block

I'd like to be able to plot in an orgbabel chunk these data I have in a org-table: #+NAME:amount | date | amount |------------------+--------| | <2022-01-30 Sun> | 55.1 | | <...
Emmanuel Goldstein's user avatar
6 votes
3 answers
445 views

Can I insert a prefix to Org Babel source code lines on export?

Like, say I have a shell script source code block. #+BEGIN_SRC shell echo 'Hello World!' #+END_SRC On export, I want the code text to pick up a dollar sign, so $ echo 'Hello World!'. But I only ...
purple_arrows's user avatar
5 votes
1 answer
463 views

Setting :stdin with #+call in org-mode shell code block

I've got the following code: #+NAME: example-block1 #+BEGIN_EXAMPLE Lorem ipsum dolor sit amet, consectetur adipisicing elit. #+END_EXAMPLE #+NAME: example-block2 #+BEGIN_EXAMPLE Sed do eiusmod ...
Tessa Luniki's user avatar