tcitry

import base64
from cryptography.hazmat.primitives.ciphers import Cipher, algorithms, modes
from cryptography.hazmat.primitives import padding
from cryptography.hazmat.backends import default_backend
from django.utils.encoding import force_bytes, force_text

SECRET_KEY = "hellomotherfucker"
value = force_bytes("12345678901234567890")

backend = default_backend()

tcitry

import asyncio

@asyncio.coroutine
def hello():
    print("hello start")
    ret = yield from asyncio.sleep(2)
    print('hello end')

@asyncio.coroutine
def world():

tcitry

# -*- coding:utf-8 -*-
import io
import re

class Counter:
    def __init__(self, path):
        """
        :param path: 文件路径
        """
        self.mapping = dict()