How do I get a list of all the ASCII characters using Python?

Here it is:

[chr(i) for i in range(128)]

ASCII defines 128 characters whose byte values range from 0 to 127 inclusive. So to get a string of all the ASCII characters, you could just do

''.join(chr(i) for i in range(128))

Only 100 of those are considered printable. The printable ASCII characters can be accessed via

import string
string.printable

Since ASCII printable characters are a pretty small list (bytes with values between 32 and 126 inclusive), it's easy enough to generate when you need:

>>> for c in (chr(i) for i in range(32, 127)):
...     print(c)
... 
 
!
"
#
$
%
... # a few lines removed :)
y
z
{
|
}
~