David Higgins sligodave

Installing Python 3.6 on Raspbian

As of January 2018, Raspbian does not yet include the latest Python release, Python 3.6. This means we will have to build it ourselves, and here is how to do it. There is also an ansible role attached that automates it all for you.

Install the required build-tools (some might already be installed on your system).

Screen Quick Reference

Basic

Description	Command
Start a new session with session name	`screen -S <session_name>`
List running sessions / screens	`screen -ls`
Attach to a running session	`screen -x`
Attach to a running session with name	`screen -r`

One-line Tree in Python

Using Python's built-in defaultdict we can easily define a tree data structure:

def tree(): return defaultdict(tree)

That's it!

	// SVG2PNG
	// By Cees Timmerman, 2024-04-05.
	// Paste into console and adjust indices as needed.
	let im = document.getElementsByTagName('img')
	let fname = location.href
	if (im.length < 1) {
	let svg = document.getElementsByTagName('svg')[0]
	let bb = svg.getBBox()
	im = new Image(bb.width, bb.height)
	im.src = 'data:image/svg+xml;charset=utf-8;base64,' + btoa(document.getElementsByTagName('svg')[0].outerHTML)

	var d = document.createElement('div');
	d.innerHTML = '\
	<style>\
	:not(.icon):not(i), :not(.icon):not(i):after, *:not(.icon):not(i):before {\
	box-shadow: none !important;\
	text-shadow: none !important;\
	background-image: none !important;\
	}\
	*:not(.icon):not(i) {\
	border-color: transparent !important;\

	# taken from http://www.piware.de/2011/01/creating-an-https-server-in-python/
	# generate server.xml with the following command:
	# openssl req -new -x509 -keyout server.pem -out server.pem -days 365 -nodes
	# run as follows:
	# python simple-https-server.py
	# then in your browser, visit:
	# https://localhost:4443

	import BaseHTTPServer, SimpleHTTPServer
	import ssl

	/* Flatten das boostrap */
	.well, .navbar-inner, .popover, .btn, .tooltip, input, select, textarea, pre, .progress, .modal, .add-on, .alert, .table-bordered, .nav>.active>a, .dropdown-menu, .tooltip-inner, .badge, .label, .img-polaroid {
	-moz-box-shadow: none !important;
	-webkit-box-shadow: none !important;
	box-shadow: none !important;
	-webkit-border-radius: 0px !important;
	-moz-border-radius: 0px !important;
	border-radius: 0px !important;
	border-collapse: collapse !important;
	background-image: none !important;

	# saved from: http://pastie.org/private/bclbdgxzbkb1gs2jfqzehg

	import sublime
	import sublime_plugin
	import subprocess


	class RunExternalCommand(sublime_plugin.TextCommand):
	"""
	Runs an external command with the selected text,



	from datetime import datetime


	#########################################
	# Set up the django environment
	#########################################
	from django.core.management import setup_environ