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by retrogradeorbit 5887 days ago
Yes, if you wanted to only have valid words, this could reduce the search space dramatically. I know it's not python, but if you replaced the '_'s with '.'s just the grep command will be surprisingly quick and powerful.

$ grep -i ^H.LL.$ /usr/share/dict/words

Maybe a similar method using the re module and then matching on your dictionary?