aes.py

from os import urandom
from Crypto.Cipher import AES
import base64
import sys

# For Generating cipher text
secret_key = b'0123456789abcdef'
iv = b'0123456789abcdef'
obj = AES.new(secret_key, AES.MODE_CBC, iv)

# Encrypt the message
message = 'Lorem Ipsum text'
if len(sys.argv) > 1:
    message = sys.argv[1]
while (len(message) % 16 != 0):
    message = message + "."
message = message.encode('utf-8')
print('Original message is: ', message)
encrypted_text = obj.encrypt(message)
print('The encrypted text', encrypted_text)
print('base64',base64.b64encode(encrypted_text))
# Decrypt the message
rev_obj = AES.new(secret_key, AES.MODE_CBC, iv)
decrypted_text = rev_obj.decrypt(encrypted_text)
print('The decrypted text', decrypted_text.decode('utf-8'))