def __init__(self):
self.childlist = {}
self.parentlist = {}
self.categorylist = Classification.getclassificationrule()
self.childlist['x'] = []
for catnode in self.categorylist:
if(Classification.isCat(catnode)):
self.parentlist[catnode] = 'x'
self.childlist['x'].append(catnode)
self.childlist[catnode] = []
elif(Classification.isSubcat(catnode)):
self.parentnode = Classification.subcatToCat(catnode)
self.parentlist[catnode] = self.parentnode
self.childlist[self.parentnode].append(catnode)
