Eugeny/reconfigure — pull request #1 by Ivoz (2012-10-07 18:49:22+00:00)
Title: Give Nodes some native operator syntaxes

Nodes can now support:

for child in node: # iterates through children
if child in node: # looks for child in node's children
node[key] # effectively node.get
node[key] = value # effectively node.set
len(node) # number of children