from app import mail
from threading import Thread
from flask_mail import Message
from flask import current_app, render_template



def send_async_email(app, msg):
    with app.app_context():
        try:
            mail.send(msg)
        except Exception as e:
            pass


def send_mail(to, subject, template, **kwargs):
    # Python email
    # msg = Message('测试邮件', sender='aaa@qq.com', body='Test',
    #               recipients=['user@qq.com'])
    msg = Message('[鱼书]' + ' ' + subject,
                  sender=current_app.config['MAIL_USERNAME'],
                  recipients=[to])
    msg.html = render_template(template, **kwargs)
    # current_app  app = Flask()
    app = current_app._get_current_object()
    thr = Thread(target=send_async_email, args=[app, msg])
    thr.start()

from flask import Flask
from flask_login import LoginManager

from app.models.book import db
from flask_mail import Mail

login_manager = LoginManager()
mail = Mail()

def create_app():
app = Flask(name)
app.config.from_object(‘app.secure’)
app.config.from_object(‘app.setting’)
register_blueprint(app)

db.init_app(app)
login_manager.init_app(app)
login_manager.login_view = 'web.login'
login_manager.login_message = '请先登录或注册'

mail.init_app(app)

with app.app_context():
    db.create_all()
return app

def register_blueprint(app):
from app.web.book import web
app.register_blueprint(web)