Our fourth broadcast is on Tuesday, May 19, 2020, at 20:30 Oslo time/ 21:30 Helsinki time (convert to your time).

We will talk discuss workflows and documentation, with many smaller tips and tricks in between.

The stream starts 10 minutes early and you can use this time to already start asking questions you may have.

Follow this website, or Twitter @__radovan or @SciCompAalto for updates.

Videos are posted at the youtube playlist.

Questions and answers from our collaborative document

What did you learn recently that you are really excited about?

  • observable (https://observablehq.com)
    • its like an interactive version of jupyter notebook that has a dependency graph built in. in that sense it is consistently stateful.
    • yes it it collaborative.
  • How to build my cpp projects with CMake, make my own libraries and import these dependencies with CMake. I used to hate CMake until a few months ago. No more!
  • learned how to couple Rust and Python and to deploy it to PyPI
  • GitHub Actions to automate testing/deployments
  • [Great tool for working with binary formats](http://kaitai
  • thanks guys! enjoyed it again! greetings from germany :)
  • Thanks a lot!
  • yes, thanks :-) learned a lot!


  • How do makefiles know which source files have been changed since the recent make?
    • Make decides whether a target needs to be regenerated by comparing file modification times. (https://en.wikipedia.org/wiki/Make_(software))
  • You could use .PHONY, there can be a problem if e.g. a file “finalization” is present
  • make -j for parallelization
    • This will parallelize a make run automatically
  • For workflows, how do you deal with when a pipeline of reproducible expensive steps fails at some point, and maybe something like a Makefile gets confused?
    • If you define the steps in the Makefile, and they have fixed inputs and outputs, it should do the right thing.
  • When you’re writing documentation for something that has multiple audiences (say, developers of the library, developers integrating the library, and maybe non-technical users further down the line), how do you prioritize what documentation to write?
    • We’ll discuss this in the section
  • https://meldmerge.org/

  • git diff --word-diff=color

  • what shell do you use?
    • bash +3
    • tcsh/csh +1
    • zsh +2
    • fish
    • … ?
    • zsh for interactive, bash for scripting (from chat)
    • is there much difference between shells (from chat)
      • that’s tricky, for interactive use not much, for scripting it gets hairy but there are clear differences between C-family shells and sh-family ones (from chat)
  • what about “perspectives from different people: developers, users, installers, user support?”

  • sphinx-gallery
    • The idea is that with your docstrings, and just a folders in which you dump some examples, you have a pretty complete documentation setup. Get the most bang for your buck. (from chat)
    • All these complicated config files are simply copy/pasted from repositories that went through the trouble of setting all of this stuff up. (from chat)
    • All of this stuff is auto-generated by sphinx. (from chat)
    • Also: examples serve as integration tests (from chat)
    • readthedocs.org

thanks for watching!