title: Finding words from Wordnet separated by a fixed Edit Distance from a given word
body: <p>I am writing a spell checker using nltk and wordnet, I have a few wrongly spelt words say "belive". What I want to do is find all words from wordnet that are separated by a leveshtein's edit distance of 1 or 2 from this given word. 
  Does nltk provide any methods to accomplish this? How to do this?</p>
  
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  <p>May be, I put it wrongly. the <code>edit_distance</code> method takes 2 arguments like <code>edit_distance(word1,word2)</code> returns the levenshtein's distance between word1 and word2.
  What I want is to find edit distance between the word I give with every other word in wordnet.</p>