globals:

string.whitespace:
' \t\n\r\x0b\x0c'

string.ascii_lowercase:
'abcdefghijklmnopqrstuvwxyz'

string.ascii_uppercase:
'ABCDEFGHIJKLMNOPQRSTUVWXYZ'

string.ascii_letters:
'abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ'

string.digits:
'0123456789'

string.hexdigits:
'0123456789abcdefABCDEF'

string.octdigits:
'01234567'

string.punctuation:
'!"#$%&\'()*+,-./:;<=>?@[\\]^_`{|}~'

string.printable:
'0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ!"#$%&\'()*+,-./:;<=>?@[\\]^_`{|}~ \t\n\r\x0b\x0c'