example.py

import sys, rlp, leveldb
from ethereum import trie

db = leveldb.LevelDB('/tmp/xyz')

class X:
  def get(self, a):
    return db.Get(a)
  def put(self, a, b):
    return db.Put(a, b)
  def commit(self):
    pass

state = trie.Trie(X(), '')

i = 0
for line in file('/usr/share/dict/words'):
  if i == 500:
    break
  line = line.strip()

  state.update(line, line)
  i += 1
  print line, state.root_hash.encode('hex')