Rough scripts for making graphs from youtube annotation relationships.

Created to help play John Robertson's The Dark Room (http://youtu.be/hvkjP6dqpfY) and then expanded to illustrate the connections between youtube musicians.

ytusermap.py - creates a graph of youtube usernames with edges representing links to other youtube user pages that appear in their videos.
ytvidmap.py - creates a graph of youtube videos with edges representing links to other videos.
libyt.py - handles the fetching and parsing of youtube data (currently just regular expressions and urlopens) as well as providing a caching layer
libgraph.py - handles the graph and svg generation by calling pygraphviz (which itself calls graphviz)

Usage:
python ytusermap.py [output_file] [username1] [username2] ... [usernamen]

python ytvidmap.py [output_file] [video_id1] [video_id2] ... [video_idn]

Note:
The YouTube GData API doesn't provide access to annotations which is why the re/urlopen approach was chosen