Something like below:
import ascii
print ascii.charlist()
Which would return something like [A, B, C, D...]
The string
constants may be what you want. (docs)
>>> import string >>> string.ascii_uppercase 'ABCDEFGHIJKLMNOPQRSTUVWXYZ'
If you want all printable characters:
>>> string.printable '0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ!"#$%&\'()*+,-./:;?@[\\]^_`{|}~ \t\n\r\x0b\x0c'