pip install pycrypto -i http://mirrors.aliyun.com/pypi/simple/

from Crypto.Cipher import AES

# !/usr/bin/env python
# coding: utf-8
'''

'''

from Crypto.Cipher import AES
from binascii import b2a_hex, a2b_hex

class MyCrypt():
  def __init__(self, key):
    self.key = key
    self.mode = AES.MODE_CBC

  def myencrypt(self, text):
    length = 16
    count = len(text)
    print count
    if count < length:
      add = length - count
      text= text + ('\0' * add)

    elif count > length:
      add = (length -(count % length))
      text= text + ('\0' * add)

    # print len(text)
    cryptor = AES.new(self.key, self.mode, b'0000000000000000')
    self.ciphertext = cryptor.encrypt(text)
    return b2a_hex(self.ciphertext)

  def mydecrypt(self, text):
    cryptor = AES.new(self.key, self.mode, b'0000000000000000')
    plain_text = cryptor.decrypt(a2b_hex(text))
    return plain_text.rstrip('\0')

if __name__ == '__main__':
  mycrypt = MyCrypt('abcdefghjklmnopq')
  e = mycrypt.myencrypt('hello,world!')
  d = mycrypt.mydecrypt(e)
  print e
  print d