flask 做微信公衆號驗證token的錯誤TypeError: Unicode-objects must be encoded before hashing

#wechat.py

from flask import Flask,request,make_response
import hashlib

app = Flask(__name__)

@app.route('/wechat8000')
def wechat():
    #設置token
    token = 'python'
    #獲取參數
    data = request.args
    signature = data.get('signature')
    timestamp = data.get('timestamp')
    nonce = data.get('nonce')
    echostr = data.get('echostr')

    #對參數進行字典排序,拼接字符串
    temp = [timestamp,nonce,token]
    temp.sort()
    temp = ''.join(temp)
    #加密
    if (hashlib.sha1(temp).hexdigest()==signature):
        return make_response(echostr)
    else:
        return 'error',403

if __name__ == '__main__':
    app.run(port=8000)

[2019-12-28 00:08:34,931] ERROR in app: Exception on /wechat8000 [GET]
Traceback (most recent call last):
File “/root/.virtualenvs/weixin/lib/python3.7/site-packages/flask/app.py”, line 2446, in wsgi_app
response = self.full_dispatch_request()
File “/root/.virtualenvs/weixin/lib/python3.7/site-packages/flask/app.py”, line 1951, in full_dispatch_request
rv = self.handle_user_exception(e)
File “/root/.virtualenvs/weixin/lib/python3.7/site-packages/flask/app.py”, line 1820, in handle_user_exception
reraise(exc_type, exc_value, tb)
File “/root/.virtualenvs/weixin/lib/python3.7/site-packages/flask/_compat.py”, line 39, in reraise
raise value
File “/root/.virtualenvs/weixin/lib/python3.7/site-packages/flask/app.py”, line 1949, in full_dispatch_request
rv = self.dispatch_request()
File “/root/.virtualenvs/weixin/lib/python3.7/site-packages/flask/app.py”, line 1935, in dispatch_request
return self.view_functionsrule.endpoint
File “wechat.py”, line 23, in wechat
if (hashlib.sha1(temp).hexdigest()==signature):
TypeError: Unicode-objects must be encoded before hashing

在這裏插入圖片描述
解決更新加密前的編碼
s1 = sha1()
s1.update(temp.encode(“utf8”))
sign = s1.hexdigest()

# coding:utf-8
from flask import Flask,request,make_response,abort
from hashlib import sha1

app = Flask(__name__)

@app.route('/wechat8000')
def wechat():
    #設置token
    token = 'python'
    #獲取參數
    data = request.args
    signature = data.get('signature')
    timestamp = data.get('timestamp')
    nonce = data.get('nonce')
    echostr = data.get('echostr')

    #對參數進行字典排序,拼接字符串
    temp = [timestamp,nonce,token]
    temp.sort()
    temp = ''.join(temp)
    #加密
    s1 = sha1()
    s1.update(temp.encode("utf8"))
    sign = s1.hexdigest()
    if sign !=signature:
        abort(403)
    else:
        return echostr
if __name__ == '__main__':
    app.run(port=8000)
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