>>> key = ''.join(sorted(word)) I tend to strip and lower the word as well, otherwise "Hello" and "hello" do not compare...depends on what you want though! Plus you might get a lot of "word\n" as keys...
My technique is the this way
def anagram_finder(words):
anagrams = {}
for word in words:
word = word.strip()
key = ''.join(sorted(word.lower()))
anagrams.setdefault(key, []).append(word)
return anagrams
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