DEBUG = False
WORD_LENGTH = 5
ROUNDS = 6
INSTRUCTIONS = "Positional letters (green) are CAPITAL, non-positional (yellow) are small, others are blanks e.g.  SHe-r"
BLANK = "-"


def cat_words():
    with open('/usr/share/dict/words') as f:
        for word in f.readlines():
            # remove end of line
            word = word[:-1]
            # filter out five letter words
            if len(word) == WORD_LENGTH and "'" not in word and not word[0].isupper():
                yield word