chr() - Converts the number in the parenthesis to it's unicode character equivalent.
The first 32 unicode characters are unprintable.
Upper case letters are 65-90.
Lower case letters are 97-122.
test = chr(65)
print(test)
A
test = chr(90)
print(test)
Z
test = chr(97)
print(test)
a
test = chr(122)
print(test)
z