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Create CeasarCipher.py #4766

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37 changes: 37 additions & 0 deletions CeasarCipher.py
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Original file line number Diff line number Diff line change
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def encrypt():
message=input("Type in your message: ")
shift=int(input("Enter shift: "))
msg=alphabets[shift:] + alphabets[0:shift]
output=""
for letter in message.lower():
if letter.isalpha():
output+=msg[alphabets.index(letter)]
elif letter.isspace():
output+=" "
else:
output+=letter
print(output)


def decrypt():
message=input("Type in your code: ")
shift=int(input("Enter shift: "))
msg=alphabets[shift:] + alphabets[0:shift]
output=""
for letter in message.lower():
if letter.isalpha():
output+=alphabets[msg.index(letter)]
elif letter.isspace():
output+=" "
else:
output+=letter
print(output)

alphabets="abcdefghijklmnopqrstuvwxyz"
to_do=input("Type in 'encode' to encrypt or 'decode' to decrypt: ")
if to_do=="encode":
encrypt()
elif to_do=="decode":
decrypt()
else:
print("ERROR! Type in proper function!")