[D] What is some cool python magic(s) that you've learned over the years?

• ubelt

  7 708 8.4 Python

  A Python utility library with a stdlib like feel and extra batteries. Paths, Progress, Dicts, Downloads, Caching, Hashing: ubelt makes it easy!

My ubelt library https://github.com/Erotemic/ubelt contains a collection of pure Python tools I've written over the years that I found to be highly reusable. The code and docs highlight a lot of what I've learned about Python in the last decade, and also where I think current stdlib features fall a bit short and they could use some extra batteries.

• bython

  12 529 0.0 Python

  Python with braces. Because python is awesome, but whitespace is awful.

And then of course there's this insanity.

• InfluxDB

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• mypy

  112 17,506 9.7 Python

  Optional static typing for Python

  

Typehints + mypy

• black

  322 37,348 9.4 Python

  The uncompromising Python code formatter

  

Black for code formatting.

• mkinit

  2 67 7.7 Python

  Auto-generate explicit readable __init__.py files without `import *`

One thing that can help with making such a package is the mkinit package, which is what I use in ubelt to autogenerate code that explicitly exposes the entire public API at the top-level (although you can specify subsets of what to expose).

• utool

  1 8 0.0 Python

  Useful Utility Tools For You!

Also be careful not to put the kitchen sink in it, that's what happened with my first attempt at such a module. Try to avoid bringing in any non pure-python package. It's important to keep the dependency footprint small so its easy to include your utilities in larger projects. For tools dealing with specific bigger packages (e.g. numpy, opencv), either make a standalone utility for that package or perhaps you could incorporate it into the main package as an optional dependency. Just be careful of accumulating too much import-time cost.

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