Kevin McCarthy

(Mis)adventures in retrocomputing, or how I killed and resurrected my Amiga 1000 in one evening.

I'm putting this out there into the world, just in case someone else manages to kill their Amiga in this way. I've been messing around with an Amiga 1000 (the same one from my early childhood!) and lately have been experimenting with a Rejuvenator and a

Streaming subprocess stdin and stdout with asyncio in Python

I keep finding myself facing this problem where I want to run an external process in Python. There are a few ways to do it in the standard library: * subprocess * os.system * os.spawn * os.popen * popen2 * commands All of these are deprecated except for subprocess. As an example, this

Multiple Async Callbacks Updating State in React

I've been learning React and ran into a problem that's tricky to Google. When my component mounts, I fire off a list of XHR calls to an external service. When each one returns, I want to update the state. Here was my first attempt: class SomeComponent

Integration Testing Flask Apps

Pytest fixtures are pretty amazing, and I end up writing quick and dirty fixtures all the time for my tests. I just wrote a quickie pytest fixture for integration testing flask apps. Here's how you use it: import requests def test_request_tasks(server): assert requests.get(server

Setting up Vim for Clojure

I've been reading through the second edition of They Joy Of Clojure for the ClojureHNL meetup group and wanted to see how I could improve my Vim setup for editing Clojure code. This is mostly a note to myself but I thought someone else might find it interesting.

10 Things I Learned Deploying Graphite

Graphite and I have a long history. It all started when reading the amazing blog post introducing StatsD by Etsy's engineering team. If you haven't read it yet, I recommend it as it is a nice illustration of why you would want to install Graphite. If

Securing Internal Dashboards with Oauth

At Real Geeks we have lots of internal dashboards: Graphite, Logstash, Munin, and some other internal tools with status pages. Obviously, I didn't want these open to the public. I was using one of two different ways of restricting access, and both of them didn't work