"Loris Bennett" <loris.benn...@fu-berlin.de> writes: > Hi, > > I have multiple versions of each of various languages such as Python > or R. On the command line I can select a version using the 'module'[1] > mechanism provided by Lmod[2]: > > My question is: How do I change the environment, ideally call 'module > load ...' but potentially just set environment variables, before calling > a source block?
It depends on source block language. For Python, there is :python header arg where you can specify python command to be used. I am not sure about R More generally, you can advice org-babel-execute-src-block and wrap it into something like with-environment-variables macro (available in newest Emacs). Or you can write a bash source block, set envitonment there as usual, and invoke your Python/R script using noweb. Hope it helps. Best, Ihor
