Matthew B White mbwhite

upgrade to stretch (ideally need buster for python 3.7 and node 10)
rebuilt python 3.7 (https://www.wyre-it.co.uk/blog/latestpython/)
- the tests hung, re-started and finsihed the script manually
install node 10 (https://www.w3schools.com/nodejs/nodejs_raspberrypi.asp) curl -sL https://deb.nodesource.com/setup_8.x | sudo -E bash - sudo apt-get install -y nodejs
pipenv (https://pipenv.readthedocs.io/en/latest/install/#installing-pipenv)
- Need to really add pip3.7 to the path first to make this easier.
install git (https://projects.raspberrypi.org/en/projects/getting-started-with-git/4) sudo apt install git

Notes on the dev experience

Based on the (continued) developing of the Commercial Paper stack

API Notes


	let selected = {};

	let ready = (callback) => {
	// in case the document is already rendered
	if (document.readyState != 'loading') callback();
	// modern browsers
	else if (document.addEventListener) document.addEventListener('DOMContentLoaded', callback);
	// IE <= 8
	else document.attachEvent('onreadystatechange', function () {

	toHex(str) {
	let hex = '';
	for(let i=0;i<str.length;i++) {
	let s = str.charCodeAt(i).toString(16);
	hex += (s.length===1 ? '0' : '')+ str.charCodeAt(i).toString(16)+ ' ';
	}
	return hex;
	}