Today I Learned...

A collection of concise write-ups and code snippets on those small nuggets of information I'd otherwise forget.

So far, I have learned 14 things.

Categories

• Bash
• Black
• Django
• Doh
• Git and Github
• Markdown
• Python built-ins
• Python datatypes
• Python standard library
• Web Design

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Bash

• Find all apps installed on a Mac

Black

• Excluding directories

Django

• Setting up a new Django project

Doh

• String comparisons - always consider case

Git and Github

• Git pull vs git fetch
• Python-githooks

Markdown

• Internal links in Markdown docs

Python built-ins

• Divmod()
• Using zip() to combine iterables

Python datatypes

• Dictionary comprehension
• List Comprehensions to combine elements of multiple lists
• Use rsplit() to get the last section of a path

Python standard library

• Getting the difference between two datetime objects

Web Design

• Using Lorum Picsum to create random placeholder images

Usage

To create a new article:

1. Create a new .md file (and a new folder, if it's a new category).
2. The title of the new article will be the first level one heading in the file. Use '#', not 'H1'.
3. Once all new articles are have been staged in the local repo, commit the changes to git. Assuming python-githooks is installed and set up, this readme.md should be automatically regenerated (the test suite will also run, and Python files will be blackened).
4. If edits are made directly in the GitHub editor make sure to git pull the latest version before committing any new articles to the repo locally. There's a test in the test suite to check that the local repo isn't behind the remote, so a commit should fail if there are remote changes not included locally.

About

Jim Anderson suggested that I build a "Today I Learned..." repo when I asked on the Real Python Slack channel how people were storing their code snippets. Jim's reward for this kindness was that I shamelessly copied his own TIL (although I've added quite a lot of features since then). Thank you Jim, for the suggestion and inspiration!

License

This repository is licensed under the MIT license. See LICENSE for details.