FlaskWTFforms TypeError:\uyu init_ku（）接受2个参数3个参数被给定

Question

我一直试图建立这个烧瓶登录系统，但一直得到这个错误。我查了一下有特别的错误，建议似乎不适合这个例子中的问题。在

我取出了模板中的两个字段（email和name），它起作用了，但我不确定为什么我认为您应该能够拥有尽可能多的字段。而且，它不会将用户数据提交到数据库。在

from flask import Flask, render_template, redirect
from flask_wtf import FlaskForm
from wtforms import BooleanField, StringField, PasswordField
from wtforms.validators import InputRequired, Length, Email
from flask_bootstrap import Bootstrap
from flask_sqlalchemy import SQLAlchemy

app = Flask(__name__)
app.config['SECRET_KEY'] = 'sosecretbro'
app.config['SQLALCHEMY_DATABASE_URI']= 'sqlite:////Users/myname/Desktop/officeplace/database.db'
Bootstrap(app)
db = SQLAlchemy(app) 


class User(db.Model):
    id = db.Column('id', db.Integer(), primary_key=True)
    name = db.Column('name', db.String(50))
    username = db.Column('username', db.String(20), unique=True)
    password = db.Column('password', db.String(80), unique=True)
    email = db.Column('email', db.String(50))


class RegisterForm(FlaskForm):
    name = StringField('name', validators=[InputRequired(), Length(min=3, max=50)])
    username = StringField('username', validators=[InputRequired(), Length(min=8, max=15)])
    password = StringField('password', validators=[InputRequired(), Length(min=8, max=80)])
    email = StringField('email', validators=[InputRequired, Email(message=None)])

class LoginForm(FlaskForm):
    username = StringField('username', validators=[InputRequired(), Length(min=8, max=15)])
    password = StringField('password', validators=[InputRequired(), Length(min=8, max=80)])


@app.route('/')
def index():
    return 'We here now'


@app.route('/register', methods=['GET', 'POST'])
def register():
    form = RegisterForm()
    if form.validate_on_submit():
        new_user = User(username=form.username.data, password=form.password.data)
        db.session.add(new_user)
        db.session.commit()
        return '<h1>' 'New user created' '<h1>'
    return render_template('register.html', form=form)

@app.route('/login', methods=['GET', 'POST'])
def login():
    form = LoginForm()
    if form.validate_on_submit():
        return render_template('login.html', form=form)


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

模板-

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回溯-

File "/Users/nicksmith/Desktop/officeplace/lib/python3.6/site-packages/flask/app.py", line 1997, in __call__
return self.wsgi_app(environ, start_response)
File "/Users/nicksmith/Desktop/officeplace/lib/python3.6/site-packages/flask/app.py", line 1985, in wsgi_app
response = self.handle_exception(e)
File "/Users/nicksmith/Desktop/officeplace/lib/python3.6/site-packages/flask/app.py", line 1540, in handle_exception
reraise(exc_type, exc_value, tb)
File "/Users/nicksmith/Desktop/officeplace/lib/python3.6/site-packages/flask/_compat.py", line 33, in reraise
raise value
File "/Users/nicksmith/Desktop/officeplace/lib/python3.6/site-packages/flask/app.py", line 1982, in wsgi_app
response = self.full_dispatch_request()
File "/Users/nicksmith/Desktop/officeplace/lib/python3.6/site-packages/flask/app.py", line 1614, in full_dispatch_request
rv = self.handle_user_exception(e)
File "/Users/nicksmith/Desktop/officeplace/lib/python3.6/site-packages/flask/app.py", line 1517, in handle_user_exception
reraise(exc_type, exc_value, tb)
File "/Users/nicksmith/Desktop/officeplace/lib/python3.6/site-packages/flask/_compat.py", line 33, in reraise
raise value
File "/Users/nicksmith/Desktop/officeplace/lib/python3.6/site-packages/flask/app.py", line 1612, in full_dispatch_request
rv = self.dispatch_request()
File "/Users/nicksmith/Desktop/officeplace/lib/python3.6/site-packages/flask/app.py", line 1598, in dispatch_request
return self.view_functions[rule.endpoint](**req.view_args)
File "/Users/nicksmith/Desktop/officeplace/officeplace.py", line 43, in register
if form.validate_on_submit():
File "/Users/nicksmith/Desktop/officeplace/lib/python3.6/site-packages/flask_wtf/form.py", line 101, in validate_on_submit
return self.is_submitted() and self.validate()
File "/Users/nicksmith/Desktop/officeplace/lib/python3.6/site-packages/wtforms/form.py", line 310, in validate
return super(Form, self).validate(extra)
File "/Users/nicksmith/Desktop/officeplace/lib/python3.6/site-packages/wtforms/form.py", line 152, in validate
if not field.validate(self, extra):
File "/Users/nicksmith/Desktop/officeplace/lib/python3.6/site-packages/wtforms/fields/core.py", line 204, in validate
stop_validation = self._run_validation_chain(form, chain)
File "/Users/nicksmith/Desktop/officeplace/lib/python3.6/site-packages/wtforms/fields/core.py", line 224, in _run_validation_chain
validator(form, self)
TypeError: __init__() takes from 1 to 2 positional arguments but 3 were given