− Factorio tool: rocket compression
In Factorio Space Age, which items take more rocket to launch than their ingredients?
Hi! I’m Simon Sapin, pronoun he (or they). Things I’ve worked on include GraphQL, Mercurial, Rust, Servo, web standards in W3C’s CSS Working Group, and WeasyPrint.
I’m @SimonSapin on GitHub and
@simon@tutut.delire.party on Fediverse.
Email to contact at this domain also works.
− Borrow cycles in Rust: arenas v.s. drop-checking
Creating cycles with &T borrowed references in rust is tricky, but possible.
Drop-checking seems to prevent optimizing practical uses,
but there’s an escape hatch (that’s only available on Nightly for now),
as well as a hack (that works on Rust Stable).
− cairocffi: CFFI-based Python bindings for cairo
What is cairocffi, how does it relate to pycairo, and why did I build it?
− WeasyPrint at W3C Developer Meetup in Lyon
I gave a talk in the Lyon city hall for the W3C Developer Meetup, presenting WeasyPrint, Kozea, and how we got there.
− WeasyPrint at PyConFR 2012
I gave a talk about WeasyPrint at PyConFR.
− Flask-WeasyPrint
I just released Flask-WeasyPrint
− tinycss: a new CSS parser for Python
I made tinycss, a new free software CSS parser for Python. It is extensible, well-documented, well-tested and fast. It replaces cssutils in both WeasyPrint and CairoSVG.
− Multicorn: Access foreign data in PostgreSQL with Python
We just released Multicorn. It enables you to write Foreign Data Wrappers for PostgreSQL in Python. Any data source can be exposed as a table and queried with full SQL.
− WeasyPrint renders HTML+CSS to PDF
The project I’ve been working on in the past few months has finally reached an usable state and has gotten a public release! See weasyprint.org
− Run a script on file changes with inotify
Have a script (eg. your test suite) run automatically every time a file changes.
− Low-tech NTP
How to synchronize a Linux computer’s clock when NTP doesn’t work.
− Single-threaded event loop for file input and timers
To wait for various events and without polling, a blocking threads for each event is the obvious solution. However, multi-threading comes with its pitfalls and problems. Here we are going to see how to build and event loop the handle multiple event in the same thread.
− Flask-Static is dead, long live Frozen-Flask!
Just because the new name is so much cooler.
− Programatically open multiple GNOME Terminal tabs
To run several tasks in parallel and keep their output separated, run each one in its own shell. Doing so can be automated, and thus it should. Here is how to open a GNOME Terminal window with multiple tabs from a script.
− Random pronounceable passwords
Using a sample text for statistics and Markov chains, we can generate passwords that are both random (and thus strong) and pronounceable (and thus easier to memorize.)
− Using Jinja2 in Django
How to replace Django’s templating system by Jinja2 and still profit from it eg. in generic views.
− Flask-Static: yet another static website generator
I’ve been working on re-launching my personal website (you’re looking at the result), and wrote a static website generator in the process. It’s made of two Flask extension: Flask-FlatPages gives easy access to content with metadata stored in text files, and Flask-Static takes a snapshot of a Flask application as static files.