String constants¶ The constants defined in this module are: string.ascii_letters¶ The concatenation of the ascii_lowercase and ascii_uppercase constants described below. This value is not locale-dependent. string.ascii_lowercase¶ The lowercase letters 'abcdefghijklmnopqrstuvwxyz'. This value is not locale-dependent and will not change. string.ascii_uppercase¶ The uppercase letters 'ABCDEFGHIJKLMNO