Modernize Python 2 code to get ready for Python 3

ciphers/affine_cipher.py

@@ -1,3 +1,4 @@
+from __future__ import print_function
 import sys, random, cryptomath_module as cryptoMath
 
 SYMBOLS = """ !"#$%&'()*+,-./0123456789:;<=>?@ABCDEFGHIJKLMNOPQRSTUVWXYZ[\]^_`abcdefghijklmnopqrstuvwxyz{|}~"""

ciphers/brute-force_caesar_cipher.py

@@ -1,3 +1,4 @@
+from __future__ import print_function
 def decrypt(message):
     """
     >>> decrypt('TMDETUX PMDVU')

ciphers/caesar_cipher.py

@@ -1,3 +1,4 @@
+from __future__ import print_function
 # The Caesar Cipher Algorithm
 
 def main():
@@ -12,9 +13,9 @@ def main():
 
     translated = encdec(message, key, mode)
     if mode ==   "encrypt":
-        print("Encryption:", translated)
+        print(("Encryption:", translated))
     elif mode == "decrypt":
-        print("Decryption:", translated)
+        print(("Decryption:", translated))
         
 def encdec(message, key, mode):
     message    = message.upper()

ciphers/rabin_miller.py

@@ -1,3 +1,4 @@
+from __future__ import print_function
 # Primality Testing with the Rabin-Miller Algorithm
 
 import random
@@ -59,5 +60,5 @@ def generateLargePrime(keysize = 1024):
 
 if __name__ == '__main__':
     num = generateLargePrime()
-    print('Prime number:', num)
-    print('isPrime:', isPrime(num))
+    print(('Prime number:', num))
+    print(('isPrime:', isPrime(num)))

ciphers/rot13.py

@@ -1,3 +1,4 @@
+from __future__ import print_function
 def dencrypt(s, n):
     out = ''
     for c in s:

ciphers/rsa_cipher.py

@@ -1,3 +1,4 @@
+from __future__ import print_function
 import sys, rsa_key_generator as rkg, os
 
 DEFAULT_BLOCK_SIZE = 128

ciphers/rsa_key_generator.py

@@ -1,3 +1,4 @@
+from __future__ import print_function
 import random, sys, os
 import rabin_miller as rabinMiller, cryptomath_module as cryptoMath
 

ciphers/simple_substitution_cipher.py

@@ -1,3 +1,4 @@
+from __future__ import print_function
 import sys, random
 
 LETTERS = 'ABCDEFGHIJKLMNOPQRSTUVWXYZ'

ciphers/transposition_cipher.py

@@ -1,3 +1,4 @@
+from __future__ import print_function
 import math
 
 def main():

ciphers/transposition_cipher_encrypt-decrypt_file.py

@@ -1,3 +1,4 @@
+from __future__ import print_function
 import time, os, sys
 import transposition_cipher as transCipher
 
@@ -29,7 +30,7 @@ def main():
     outputObj.close()
     
     totalTime = round(time.time() - startTime, 2)
-    print('Done (', totalTime, 'seconds )')
+    print(('Done (', totalTime, 'seconds )'))
     
 if __name__ == '__main__':
     main()

ciphers/vigenere_cipher.py

@@ -1,3 +1,4 @@
+from __future__ import print_function
 LETTERS = 'ABCDEFGHIJKLMNOPQRSTUVWXYZ'
 
 def main():