Mark M offlinemark

Python Number Conversion Chart

From	To	Expression

(Note: This was originally from my blog post on AlexanderRobotics.com, but I brought that site down and wanted to keep this post alive since it's referenced by Stack Overflow).

Introduction

The beauty of the Arduino lies in its simplicity. A look under the covers of the Arduino and its IDE, however, reveals a fascinating chipset and an open, extensive toolchain.

A simple unix/linux daemon in Python

Source: http://www.jejik.com/articles/2007/02/a_simple_unix_linux_daemon_in_python/

Access: http://web.archive.org/web/20131025230048/http://www.jejik.com/articles/2007/02/a_simple_unix_linux_daemon_in_python/

by Sander Marechal

I've written a simple Python class for creating daemons on unix/linux systems. It was pieced together for various other examples, mostly corrections to various Python Cookbook articles and a couple of examples posted to the Python mailing lists. It has support for a pidfile to keep track of the process. I hope it's useful to someone.

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	//To change the way (below) is displayed
	$display("%t", $realtime);

	//$timeformat(unit#, prec#, "unit", minwidth);
	$timeformat(-3, 2, " ms", 10); // -3 and " ms" give useful display msg

	unit is the base that time is to be displayed in, from 0 to -15
	precision is the number of decimal points to display.
	"unit" is a string appended to the time, such as " ns".
	minwidth is the minimum number of characters that will be displayed.

	virtualenv --no-site-packages hodor
	hodor/bin/pip install simplejson ujson cbor tnetstring msgpack-python
	curl -s 'http://www.json-generator.com/api/json/get/cvfsLVmKiG?indent=2' > test.json
	hodor/bin/python shootout.py

	#!/usr/bin/env python

	import RPi.GPIO as gpio
	from time import sleep
	import re
	import sys

	gpio.setmode(gpio.BCM)
	red = 23
	yel = 24

	def clear_data(session):
	meta = db.metadata
	for table in reversed(meta.sorted_tables):
	print 'Clear table %s' % table
	session.execute(table.delete())
	session.commit()

	# First, Install Vagrant and Virtualbox then:

	# Create new project directory
	mkdir -p ~/Sites/newproject # Create new project directory
	mk ~/Sites/newproject # Go into your new project directory

	# Setup Vagrant
	vagrant init
	# Edit vagrant file box and box url to install Ubuntu, just like https://gist.github.com/fideloper/dab171a2aa646e86b782#file-vagrantfile-share-var-www-rb-L6-L8
	# Edit Vagrantfile to create a static IP address, just like https://gist.github.com/fideloper/dab171a2aa646e86b782#file-vagrantfile-share-var-www-rb-L10