7.1. String
7.1.1. Digit, Hexadecimal, Octal
>>> import string
>>>
>>>
>>> string.digits
'0123456789'
>>>
>>> string.hexdigits
'0123456789abcdefABCDEF'
>>>
>>> string.octdigits
'01234567'
7.1.2. Punctuation
>>> import string
>>>
>>>
>>> string.punctuation
'!"#$%&\'()*+,-./:;<=>?@[\\]^_`{|}~'
>>>
>>> string.printable
'0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ!"#$%&\'()*+,-./:;<=>?@[\\]^_`{|}~ \t\n\r\x0b\x0c'