python-obj-system VS doit

i have a text on the python object system and metaclasss here https://github.com/MoserMichael/python-obj-system/blob/maste... as part of my free python course https://github.com/MoserMichael/python-obj-system/blob/maste...

it may be easy to get going with python, but it takes a non trivial amount of time to understand, what is going on. I have a advanced python3 course https://github.com/MoserMichael/python-obj-system that explains some of the more advanced concepts.

The course material is released under the MIT license, The course is written in the literate programming style. A python program exists for each lesson, it is run, and it's output is the markdown text that makes up the text of the lesson. The code and output of each python snippet is rendered as part of the lesson. This gives me some confidence in the presented material. The literate programming package is also presented in the github repository of the course.

I like mage for Go and doit for Python.

Some competitors - Rake (ruby) - Bake - Earthly - SCons - doit

An alternative to Scons could be Doit (<https://pydoit.org/>), which if I remember correctly was built as a faster alternative to Scons. See also reasons of some users to prefer the later to other mentioned here: <https://pydoit.org/stories.html>.

If you code in Python, your probably should use the language as much as possible and avoid calling shell commands.

E.G:

- manipulate the file system with pathlib

- do hashes with hashlib

- zip with zipfile

- set error code with sys.exit

- use os.environ for env vars

- print to stderr with print(..., file=...)

- sometimes you'll need to install lib. Like, if you want to manipulate a git repo, instead of calling the git command, use gitpython (https://gitpython.readthedocs.io/en/stable/)

But if you don't feel like installing a too many libs, or just really want to call commands because you know them well, then the "sh" lib is going to make things smoother:

https://pypi.org/project/sh/

Also, enjoy the fact Python comes with argparse to parse script arguments (or if you feel like installing stuff, use typer). It sucks to do it in bash .

If what you need is more build oriented, like something to replace "make", then I would instead recommend "doit":

https://pydoit.org/

It's the only task runner that I haven't run away from yet.

Remember to always to everything in a venv. But you can have a giant venv for all the scripts, and just she-bang the venv python executable so that it's transparent. Things don't have to be difficult.

I've been using Doit for a project which involves gathering together documents made up of multiple Markdown files and converting to multiple formats. It's really cool but has some irritations. It didn't end up being much simpler than Make for me. I'm interested in trying some of the alternatives people have posted.

The code for all of this is available here, and described in detail in my article. I'm particularly fan of doit for this type of project, and highly encourage everyone to check it out!

Instead, I use pydoit (which is basically a Python version of make). It's simple, flexible, and quite extensible. So, here's what I do with it: