import string
| attri | value |
|---|---|
| whitespace | ’ \t\n\r\x0b\x0c’ |
| punctuation | ![]() |
| ascii_lowercase | ‘abcdefghijklmnopqrstuvwxyz’ |
| ascii_uppercase | ‘ABCDEFGHIJKLMNOPQRSTUVWXYZ’ |
| ascii_letters | lower+upper |
| digits | ‘0123456789’ |
| hexdigits | ‘0123456789abcdefABCDEF’ |
| octdigits | ‘01234567’ |
| printable | digits+lower+upper+punc+whitespace |

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