Caesar's cipher

Caesar cipher, also known as the shift cipher, Caesar's code or Caesar shift is
one of the simplest and known cipher. 
My implementation use of pyperclip module to manage clipboard and 
to allow you to automatically copy and paste in console.

Description:

Caesar cipher, also known as Caesar's cipher, the shift cipher, Caesar's code or Caesar shift, is one of     
the simplest and most widely known encryption techniques. It is a type of substitution cipher in which       
each letter in the plain text is replaced by a letter some fixed number of positions down the alphabet. For  
# example, with a left shift of 3, D would be replaced by A, E would become B, and so on. The method is named  
# after Julius Caesar, who used it in his private correspondence.

Require:

pyperclip 1.8.2
https://pypi.org/project/pyperclip/

Installation:

pip install pyperclip

Running:

message.py

Credits:

Alin Rizea
https://www.linkedin.com/in/alin-rizea-b10368104/