python flask mail api 报错

Question

#!/usr/bin/env python
# coding:utf-8
from flask import Flask,request
from flask_mail import Mail, Message
app = Flask(__name__)
app.config['MAIL_SERVER'] = 'smtp.139.com'
app.config['MAIL_PORT'] = 465
app.config['MAIL_USE_SSL'] = True
app.config['MAIL_USERNAME'] = '[e-mail]'
app.config['MAIL_PASSWORD'] = '11111'
app.config['MAIL_DEFAULT_SENDER'] = '[e-mail]'
mail = Mail(app)

import threading


@app.route('/sendMail',methods=['POST','GET'])
def index():
    title = request.args.get('title')
    content = request.args.get('content')
    tolist = request.args.get('tolist')
    tolist = str(tolist).split(',')
    status = sendmail(title,content,tolist)
    return status

def send_async_email(app,msg):
    with app.app_context():
        mail.send(msg)

def sendmail(title,html,tolist):
    msg = Message(title, recipients=tolist)
    msg.html = html
    #msg.body = "This is a first email"
    thr = threading.Thread(target=send_async_email, args=[app,msg])#创建线程
    thr.start()
    return thr
  

if __name__ == '__main__':
    app.run(host='0.0.0.0',debug=True)

代码如上，功能是使用flask mail api异步发送邮件，使用curl 调用的时候，报错
不知道为什么Thread 报错？ 模块验证过没问题。望指教

 curl http://127.0.0.1:5000/sendMail?title=11\&content="222"\&tolist=[e-mail]
Traceback (most recent call last):
  File "C:\Python27\lib\site-packages\flask\app.py", line 1997, in __call__
    return self.wsgi_app(environ, start_response)
  File "C:\Python27\lib\site-packages\flask\app.py", line 1985, in wsgi_app
    response = self.handle_exception(e)
  File "C:\Python27\lib\site-packages\flask\app.py", line 1540, in handle_exception
    reraise(exc_type, exc_value, tb)
  File "C:\Python27\lib\site-packages\flask\app.py", line 1982, in wsgi_app
    response = self.full_dispatch_request()
  File "C:\Python27\lib\site-packages\flask\app.py", line 1615, in full_dispatch_request
    return self.finalize_request(rv)
  File "C:\Python27\lib\site-packages\flask\app.py", line 1630, in finalize_request
    response = self.make_response(rv)
  File "C:\Python27\lib\site-packages\flask\app.py", line 1740, in make_response
    rv = self.response_class.force_type(rv, request.environ)
  File "C:\Python27\lib\site-packages\werkzeug\wrappers.py", line 921, in force_type
    response = BaseResponse(*_run_wsgi_app(response, environ))
  File "C:\Python27\lib\site-packages\werkzeug\wrappers.py", line 59, in _run_wsgi_app
    return _run_wsgi_app(*args)
  File "C:\Python27\lib\site-packages\werkzeug\test.py", line 923, in run_wsgi_app
    app_rv = app(environ, start_response)
TypeError: 'Thread' object is not callable

Answer 1

把全局的mail初始化删掉，在异步发送代码中初始化

def send_async_email(app,msg):
    with app.app_context():
        mail = Mail(app)
        mail.send(msg)

这样试下呢

Answer 2

@skyarthur
如下版本，测试可行。 但是还是不清楚为什么前面的thread会异常。

#!/usr/bin/env python
# coding:utf-8
from flask import Flask,request
import threading
from flask_mail import Mail, Message
app = Flask(__name__)
app.config['MAIL_SERVER'] = 'smtp.139.com'
app.config['MAIL_PORT'] = 465
app.config['MAIL_USE_SSL'] = True
app.config['MAIL_USERNAME'] = '[e-mail]'
app.config['MAIL_PASSWORD'] = '******'
app.config['MAIL_DEFAULT_SENDER'] = '[e-mail]'
mail = Mail(app)

@app.route('/sendMail',methods=['POST','GET'])
def index():
    messages = request.values.to_dict()
    title = messages['title']
    content = messages['content']
    tolist = messages['tolist']
    tolist = str(tolist).split(',')
    cc = messages['cc']
    status = sendmail(title,content,tolist,cc)
    return status

def send_async_email(app,msg):
    with app.app_context():
        mail.send(msg)

def sendmail(title,content,tolist,cc):
    msg = Message(title , recipients=tolist,cc=cc)
    msg.html = content
    thr = threading.Thread(target=send_async_email, args=[app,msg])#创建线程
    thr.start()
    return thr


if __name__ == '__main__':
    app.run(host='0.0.0.0',debug=True)