9 chars with no numbers and only letters for "exec"

[Samdaaman]

I understand this is a large repo change so happy for this PR to stay open indefinitely but provide a link to a similar project

The alphabet is exc'=()%+

See this Readme for how it works https://github.com/Samdaaman/pyfuck :scroll: Happy scripting :scroll:

[wanqizhu]

Hey, looks sweet, thanks for doing this! I don't think I'll merge it with main, but I'll keep this open so people can see that it's doable with fewer characters.