in readability/debug.py [0:0]
def describe(node, depth=1):
global uids, uids_document
doc = node.getroottree().getroot()
if doc != uids_document:
uids = {}
uids_document = doc
# return repr(NodeRepr(node))
parent = ""
if depth and node.getparent() is not None:
parent = describe(node.getparent(), depth=depth - 1) + ">"
return parent + describe_node(node)