flask web开发，在Python shell中发送电子邮件，验证不正确。多个文件报错。

Question

flask web开发，在Python shell中发送电子邮件，验证不正确。多个文件报错。

发布于
2017-09-25

更新于
2017-09-25

1.flask web开发，在Python shell中发送电子邮件，验证不正确。多个文件报错。
2，代码如下
import os
from flask import Flask, render_template, session, redirect, url_for
from flask_script import Manager, Shell
from flask_bootstrap import Bootstrap
from flask_moment import Moment
from flask_wtf import FlaskForm
from wtforms import StringField, SubmitField
from wtforms.validators import Required
from flask_sqlalchemy import SQLAlchemy
from flask_migrate import Migrate, MigrateCommand
from flask_mail import Mail, Message

basedir = os.path.abspath(os.path.dirname(__file__))

app = Flask(__name__)
app.config['SECRET_KEY'] = 'hard to guess string'
app.config['SQLALCHEMY_DATABASE_URI'] =\

'sqlite:///' + os.path.join(basedir, 'data.sqlite')

app.config['SQLALCHEMY_COMMIT_ON_TEARDOWN'] = True
app.config['SQLALCHEMY_TRACK_MODIFICATIONS'] = False
app.config['MAIL_SERVER'] = 'smtp.googlemail.com'
app.config['MAIL_PORT'] = 587
app.config['MAIL_USE_TLS'] = True
app.config['MAIL_USERNAME'] = os.environ.get('MAIL_USERNAME')
app.config['MAIL_PASSWORD'] = os.environ.get('MAIL_PASSWORD')
app.config['FLASKY_MAIL_SUBJECT_PREFIX'] = '[Flasky]'
app.config['FLASKY_MAIL_SENDER'] = 'Flasky Admin <flasky@example.com>'
app.config['FLASKY_ADMIN'] = os.environ.get('FLASKY_ADMIN')

manager = Manager(app)
bootstrap = Bootstrap(app)
moment = Moment(app)
db = SQLAlchemy(app)
migrate = Migrate(app, db)
mail = Mail(app)

class Role(db.Model):

__tablename__ = 'roles'
id = db.Column(db.Integer, primary_key=True)
name = db.Column(db.String(64), unique=True)
users = db.relationship('User', backref='role', lazy='dynamic')

def __repr__(self):
    return '<Role %r>' % self.name

class User(db.Model):

__tablename__ = 'users'
id = db.Column(db.Integer, primary_key=True)
username = db.Column(db.String(64), unique=True, index=True)
role_id = db.Column(db.Integer, db.ForeignKey('roles.id'))

def __repr__(self):
    return '<User %r>' % self.username

def send_email(to, subject, template, **kwargs):

msg = Message(app.config['FLASKY_MAIL_SUBJECT_PREFIX'] + ' ' + subject,
              sender=app.config['FLASKY_MAIL_SENDER'], recipients=[to])
msg.body = render_template(template + '.txt', **kwargs)
msg.html = render_template(template + '.html', **kwargs)
mail.send(msg)

class NameForm(FlaskForm):

name = StringField('What is your name?', validators=[Required()])
submit = SubmitField('Submit')

def make_shell_context():

return dict(app=app, db=db, User=User, Role=Role)

manager.add_command("shell", Shell(make_context=make_shell_context))
manager.add_command('db', MigrateCommand)

@app.errorhandler(404)
def page_not_found(e):

return render_template('404.html'), 404

@app.errorhandler(500)
def internal_server_error(e):

return render_template('500.html'), 500

@app.route('/', methods=['GET', 'POST'])
def index():

form = NameForm()
if form.validate_on_submit():
    user = User.query.filter_by(username=form.name.data).first()
    if user is None:
        user = User(username=form.name.data)
        db.session.add(user)
        session['known'] = False
        if app.config['FLASKY_ADMIN']:
            send_email(app.config['FLASKY_ADMIN'], 'New User',
                       'mail/new_user', user=user)
    else:
        session['known'] = True
    session['name'] = form.name.data
    return redirect(url_for('index'))
return render_template('index.html', form=form, name=session.get('name'),
                       known=session.get('known', False))

if name == '__main__':