def _letter_map(word):
lmap = {}<EOL>for letter in word:<EOL><INDENT>try:<EOL><INDENT>lmap[letter] += <NUM_LIT:1><EOL><DEDENT>except KeyError:<EOL><INDENT>lmap[letter] = <NUM_LIT:1><EOL><DEDENT><DEDENT>return lmap<EOL>
Creates a map of letter use in a word.

    Args:
        word: a string to create a letter map from

    Returns:
        a dictionary of {letter: integer count of letter in word}