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Release TIL Research Tool Museum Sighting Comment
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TIL
Compile a new sqlite3 binary on Ubuntu
— I wanted to try the `vacuum into` backup command that was released in SQLite3 3.27.0 [on 2019-02-07](https://www.sqlite.org/changes.html#version_3_27_0).
TIL
How to mock httpx using pytest-mock
— I wrote this test to exercise some [httpx](https://pypi.org/project/httpx/) code today, using [pytest-mock](https://pypi.org/project/pytest-mock/).
TIL
Generated a summary of nested JSON data
— I was trying to figure out the shape of the JSON object from https://github.com/simonw/coronavirus-data-gov-archive/blob/master/data_latest.json?raw=true - which is 3.2MB and heavily nested, so it's difficult to get a good feel for the shape.
TIL
Session-scoped temporary directories in pytest
— I habitually use the `tmpdir` fixture in pytest to get a temporary directory that will be cleaned up after each test, but that doesn't work with `scope="session"` - which can be used to ensure an expensive fixture is run only once per test session and the generated content is used for multiple tests.
TIL
Fixing "compinit: insecure directories" error
— Every time I opened a terminal on my new Mac running Catalina with zsh I got the following annoying error:
Release
dogsheep-photos 0.2a
— Upload your photos to S3 and import metadata about them into a SQLite database
Release
dogsheep-photos 0.1a
— Upload your photos to S3 and import metadata about them into a SQLite database
TIL
Restricting SSH connections to devices within a Tailscale network
— I'm running an AWS Lightsail instance and I want to only be able to SSH to it from devices connected to my [Tailscale](https://tailscale.com/) network.
TIL
Close terminal window on Ctrl+D for macOS
— I always forget how to set this up. It's hidden in Preferences -> Profiles -> Basic -> Shell:
TIL
Get Skitch working on Catalina
— I really like Skitch for taking screeshots, mainly because I like to snap a quick shot and then drag the icon onto a Google Doc or similar without saving the file anywhere.
TIL
Use labels on Cloud Run services for a billing breakdown
— Thanks to [@glasnt](https://github.com/glasnt) for the tip on this one. If you want a per-service breakdown of pricing on your Google Cloud Run services within a project (each service is a different deployed application) the easiest way to do it is to apply labels to those services, then request a by-label pricing breakdown.
TIL
Running pip install -e .[test] in zsh on macOS Catalina
— macOS Catalina uses `zsh` rather than `bash` as the default shell (apparently because Apple don't like GPL 3).
TIL
macOS Catalina sort-of includes Python 3
— Once you have installed the "command line tools" for Catalina using the following terminal command:
TIL
Null case comparisons in SQLite
— I wanted to say "output this transformed value if it's not null, otherwise nothing". The recipe I figured out was:
TIL
Using macOS stickies to display a workshop link on the screen
— When giving a workshop it's often useful to have a URL to the workshop materials visible on screen at all times. I use a bit.ly link for these.
TIL
Running different steps on a schedule
— Say you have a workflow that runs hourly, but once a day you want the workflow to run slightly differently - without duplicating the entire workflow.
TIL
Running a Python ASGI app on Vercel
— Vercel really wants you to deploy static assets with [serverless functions](https://vercel.com/docs/serverless-functions/introduction) tucked away in a separate folder. They suggest creating modules like `api/index.py` which will be served up automatically as API backends to your client-side JavaScript.
TIL
Commit a file if it changed
— This recipe runs a Python script to update a README, then commits it back to the parent repo but only if it has changed:
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