Plurrrr

When your Python code is too slow, you need to identify the bottleneck that’s causing it: you need to understand what your code is doing. Luckily, beyond pre-existing profiling tools, there are also a variety of ways you can poke and prod Python programs to get a better understanding of what they’re doing internally.

It’s common knowledge that you shouldn’t put all your eggs in the same basket, but most of the time on IRC or on reddit (or the Internet at large, really), I see people using one single ssh key for all uses. How would you look at someone using a single key for their car, house, safe, work place, and so on?

It’s been a long-standing dream of front-end developers to have a way to apply CSS to an element based on what’s happening inside that element.

Maybe we want to apply one layout to an article element if there’s a hero image at the top, and a different layout if there is no hero image. Or maybe we want to apply different styles to a form depending on the state of one of its input fields. How about giving a sidebar one background color if there’s a certain component in that sidebar, and a different background color if that component is not present? Use cases like these have been around for a long time, and web developers have repeatedly approached the CSS Working Group, begging them to invent a “parent selector”.