Merge pull request #40 from Damsith-LK/main

Added Caeser Cipher

Author: Aishanipach

Caeser Cipher.py

@@ -0,0 +1,51 @@
+import string
+logo = """           
+ ,adPPYba, ,adPPYYba,  ,adPPYba, ,adPPYba, ,adPPYYba, 8b,dPPYba,  
+a8"     "" ""     `Y8 a8P_____88 I8[    "" ""     `Y8 88P'   "Y8  
+8b         ,adPPPPP88 8PP"""""""  `"Y8ba,  ,adPPPPP88 88          
+"8a,   ,aa 88,    ,88 "8b,   ,aa aa    ]8I 88,    ,88 88          
+ `"Ybbd8"' `"8bbdP"Y8  `"Ybbd8"' `"YbbdP"' `"8bbdP"Y8 88   
+            88             88                                 
+           ""             88                                 
+                          88                                 
+ ,adPPYba, 88 8b,dPPYba,  88,dPPYba,   ,adPPYba, 8b,dPPYba,  
+a8"     "" 88 88P'    "8a 88P'    "8a a8P_____88 88P'   "Y8  
+8b         88 88       d8 88       88 8PP""""""" 88          
+"8a,   ,aa 88 88b,   ,a8" 88       88 "8b,   ,aa 88          
+ `"Ybbd8"' 88 88`YbbdP"'  88       88  `"Ybbd8"' 88          
+              88                                             
+              88           
+"""
+
+print(logo)
+
+alphabet = ['a', 'b', 'c', 'd', 'e', 'f', 'g', 'h', 'i', 'j', 'k', 'l', 'm', 'n', 'o', 'p', 'q', 'r', 's', 't', 'u', 'v', 'w', 'x', 'y', 'z', 'a', 'b', 'c', 'd', 'e', 'f', 'g', 'h', 'i', 'j', 'k', 'l', 'm', 'n', 'o', 'p', 'q', 'r', 's', 't', 'u', 'v', 'w', 'x', 'y', 'z']
+
+
+def caesar(start_text, shift_amount, cipher_direction):
+  end_text = ""
+  if cipher_direction == "decode":
+    shift_amount *= -1
+    
+  for char in start_text:
+    if char not in string.ascii_lowercase:
+      end_text += char
+      continue
+    else:
+      position = alphabet.index(char)
+      new_position = position + shift_amount
+    end_text += alphabet[new_position]
+    
+  print(f"Here's the {cipher_direction}d result: {end_text}")
+
+
+while True:
+  direction = input("Type 'encode' to encrypt, type 'decode' to decrypt:\n")
+  text = input("Type your message:\n").lower()
+  shift = int(input("Type the shift number:\n"))
+  caesar(start_text=text, shift_amount=shift % 26, cipher_direction=direction)
+  restart = input("Do you want to go again, type 'yes' or 'no':\n").lower()
+  if restart == 'yes':
+    pass
+  else:
+    break

README.md

@@ -52,4 +52,4 @@ I have listed some of the interesting python related topics and programs that I
 26. [Matrix_Multiplier](https://github.com/proPrateekSahu/Beginners-Python-Projects/blob/main/MatrixMultiplier.py) - [Prateek Kumar Sahu](https://github.com/proPrateekSahu)
 27. [Create Code To Find LCM](https://github.com/abhaypratapsinghkanpur/Beginners-Python-Projects/blob/main/Code%20To%20Find%20LCM) - [Abhay Pratap Singh](https://github.com/abhaypratapsinghkanpur)
 28. [Create Python Program to Find the Square Root.py](https://github.com/abhaypratapsinghkanpur/Beginners-Python-Projects/blob/main/Create%20Python%20Program%20to%20Find%20the%20Square%20Root.py) - [Abhay Pratap Singh](https://github.com/abhaypratapsinghkanpur)
-
+29. [Caeser Cipher](https://github.com/Damsith-LK/Beginners-Python-Projects/blob/main/Caeser%20Cipher.py) - [Damsith Wijekoon](https://github.com/Damsith-LK)