Today I Learned

My Today I Learned snippets. Inspired by jbranchaud/til, which I spotted on Hacker News.

30 TILs so far. Atom feed here.

github-actions

Only run GitHub Action on push to master - 2020-04-19
Dump out all GitHub Actions context - 2020-04-19
Set environment variables for all steps in a GitHub Action - 2020-04-19
Commit a file if it changed - 2020-04-19
Running different steps on a schedule - 2020-04-20

python

Convert a datetime object to UTC without using pytz - 2020-04-19
macOS Catalina sort-of includes Python 3 - 2020-04-21
Generated a summary of nested JSON data - 2020-04-28
Installing and upgrading Datasette plugins with pipx - 2020-05-04
Use setup.py to install platform-specific dependencies - 2020-05-05
Build the official Python documentation locally - 2020-05-08

zeit-now

Running a Python ASGI app on Zeit Now v2 - 2020-04-19

sqlite

Lag window function in SQLite - 2020-04-19
Null case comparisons in SQLite - 2020-04-21
Compile a new sqlite3 binary on Ubuntu - 2020-04-30
List all columns in a SQLite database - 2020-05-06

presenting

Using macOS stickies to display a workshop link on the screen - 2020-04-20

macos

Running pip install -e .[test] in zsh on macOS Catalina - 2020-04-21
Get Skitch working on Catalina - 2020-04-21
Close terminal window on Ctrl+D for macOS - 2020-04-21
Fixing "compinit: insecure directories" error - 2020-04-26

cloudrun

Use labels on Cloud Run services for a billing breakdown - 2020-04-21

tailscale

Restricting SSH connections to devices within a Tailscale network - 2020-04-23

pytest

Session-scoped temporary directories in pytest - 2020-04-26
How to mock httpx using pytest-mock - 2020-04-29

github

Accessing repository dependencies in the GitHub GraphQL API - 2020-04-30

node

Constant-time comparison of strings in Node - 2020-05-01

firefox

Search across all loaded resources in Firefox - 2020-05-05

markdown

Converting HTML and rich-text to Markdown - 2020-05-09

pypi

Adding project links to PyPI - 2020-05-11