Python script to download all the Build 2013 Web Developer Related sessions (only). If you like to include all sessions, just modify the url by removing all the querystring parameters. http://channel9.msdn.com/Events/Build/2013 Note: since python requires proper indending, make sure open this file to make sure all indents are tabs or all are spaces

build2013_web_dev.py

#!/usr/bin/python

import os, urllib, feedparser, math, sys


def handleunicode(title):
	return title.encode(encoding='ascii',errors='replace')

def tofile(title):
  	title = title.replace("?", "-").replace("$", "-").replace("/", "-").replace(":", "-").replace(",", "-").replace("<", "").replace(">","")
	return title + ".mp4"

def getsessions():
	'''
	This requires feedparser to be loaded. E.g (pip install feedparser)
	'''
	try:	
		url = 'http://channel9.msdn.com/Events/Build/2013/RSS/mp4high?sort=sequential&direction=desc&term=&t=.net&t=asp.net&t=csharp&t=html5&t=javascript&t=jquery&t=mobile-services&t=node.js&t=rest&t=typescript&t=web&t=web-api&t=web-sites&t=winjs'
		rss = feedparser.parse(url)
		return [(tofile(handleunicode(e.title)), e.enclosures[0].href) for e in rss.entries]
	except:
		print("Error reading Session RSS feed")
		return []

def reportprogress(blocksRead, blockSize, totalSize):
	downloaded = blocksRead * blockSize
	complete = math.ceil((downloaded / (totalSize * 1.0)) * 100)

	sys.stdout.write("{0:.0f}%".format(complete))
	sys.stdout.write("\r")
	sys.stdout.write("")
	sys.stdout.flush()


def download(sessions):
	sessions.sort()
	for s in sessions:
		fname = s[0]
		url = s[1]
		if not os.path.exists(fname):
			try:
				print(fname)
				urllib.urlretrieve(url, fname, reportprogress)
			except:
				print("Unable to download " + url)



if __name__ == '__main__':
	download(getsessions())