Jim-Holmstroem’s gists

Jim-Holmstroem / main.hs

Created February 2, 2017 13:22

Simple Stack Machine Experimentation

	{-# LANGUAGE OverloadedStrings #-}

	import Prelude hiding (Word)
	import Data.Maybe

	data Stack a = Stack [a] deriving
	(Show)

	empty :: Stack a
	empty = Stack []

Jim-Holmstroem / install_python_appium_linux.sh

Last active November 18, 2016 09:41

Python Appium on Linux

	sudo npm install -g appium-doctor
	appium-doctor # find out what is missing, like JAVA_HOME=/usr/lib/jvm/java-7-openjdk

	# alternative (via git)
	git clone [email protected]:appium/appium.git
	cd appium
	npm install
	cd -

	# otherwise

Jim-Holmstroem / firefox_build_prerequisits.sh

Created August 18, 2016 14:31

Build firefox on fedora, what to install

sudo dnf install @development-tools @c-development autoconf213 gtk3-devel GConf2-devel dbus-glib-devel yasm-devel alsa-lib-devel pulseaudio-libs-devel

Jim-Holmstroem / jsonhighlighting.js

Created August 17, 2016 23:24

	function syntaxHighlight(json) {
	json = json.replace(/&/g, '&').replace(/</g, '<').replace(/>/g, '>');
	return json.replace(/("(\\u[a-zA-Z0-9]{4}\|\\[^u]\|[^\\"])"(\s:)?\|\b(true\|false\|null)\b\|-?\d+(?:\.\d*)?(?:[eE][+\-]?\d+)?)/g, function (match) {
	var cls = 'number';
	if (/^"/.test(match)) {
	if (/:$/.test(match)) {
	cls = 'key';
	} else {
	cls = 'string';
	}

Jim-Holmstroem / robosnake.ino

Last active August 8, 2016 13:07

robosnake first draft

	#include <Wire.h>
	#include <Adafruit_PWMServoDriver.h>

	// called this way, it uses the default address 0x40
	Adafruit_PWMServoDriver pwm = Adafruit_PWMServoDriver();
	// you can also call it with a different address you want
	//Adafruit_PWMServoDriver pwm = Adafruit_PWMServoDriver(0x41);

	#define SERVOMIN 200 // this is the 'minimum' pulse length count (out of 4096)
	#define SERVOMAX 500 // this is the 'maximum' pulse length count (out of 4096)

Jim-Holmstroem / random_context.py

Created July 5, 2016 08:59

Random seed context for python. Use a specific seed just within context, then restore the outer seed when jumping back out

	class RandomContext(object):
	""" Use to have a specific seed inside of a context and then restore the seed when jumping back out
	NOTE random seed is still global

	Usage:
	import random; random.seed()

	print(random.uniform(0, 1))
	with RandomContext(random, 1337) as r:
	print(r.uniform(0, 1))

Jim-Holmstroem / dockerlatest.sh

Created June 24, 2016 10:16

run latest docker image build (really nice when a build fails and you just want to jump in and see what is happening)

docker run -it $(docker images -q | head -n 1) bash

Jim-Holmstroem / sampling_simulation.py

Last active November 6, 2016 12:37

A simulation of the probability of the turn-out for a voting when you have a sample of the voters (n_samples (number of voters sampled), p_obs (the turnout of the sample))

	from __future__ import division, print_function

	from itertools import *
	from functools import *
	from operator import *
	from collections import *

	from joblib import Parallel, delayed
	import numpy as np

Jim-Holmstroem / selenium_firefox_log.py

Last active July 5, 2016 13:26

Get the log from firefox when running it selenium headless

	from selenium.webdriver import Firefox
	from selenium.webdriver.firefox.firefox_binary import FirefoxBinary
	import sys

	driver = Firefox(firefox_binary=FirefoxBinary(log_file=sys.stdout))

Jim-Holmstroem / gist:7e8614b0472277ea1816bccd877ee3af

Created April 18, 2016 08:29

First try (not working): Functor over Functor as Functor

	Prelude> data TwoD f g a = TwoD (f (g a)) deriving Show
	Prelude> TwoD [Just 3]
	TwoD [Just 3]
	Prelude> :t TwoD [Just 3]
	TwoD [Just 1] :: Num a => TwoD [] Maybe a
	Prelude> :{
	Prelude\| instance (Functor f, Functor g) => Functor (TwoD f g) where
	Prelude\| fmap o = fmap (fmap o)
	Prelude\| :}

Jim Holmström Jim-Holmstroem