1>>> string.ascii_letters
2'abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ'
3>>> string.ascii_lowercase
4'abcdefghijklmnopqrstuvwxyz'
5>>> string.ascii_uppercase
6'ABCDEFGHIJKLMNOPQRSTUVWXYZ'
7>>> string.digits
8'0123456789'
9>>> string.hexdigits
10'0123456789abcdefABCDEF'
11>>> string.octdigits
12'01234567'
13>>> string.printable
14'0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ!"#$%&\'()*+,-./:;<=>?@[\\]^_`{|}~ \t\n\r\x0b\x0c'
15>>> string.punctuation
16'!"#$%&\'()*+,-./:;<=>?@[\\]^_`{|}~'
17>>> string.whitespace
18' \t\n\r\x0b\x0c'