how to encrypt text in python
text = input()
def encrypt(t):
chars = list(text)
allowed_characters = list(" abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789,.?!")
for char in chars:
for i in allowed_characters:
if char == i:
chars[chars.index(char)] = allowed_characters.index(i)
return chars
print(encrypt(text))