我正在研究Flask Web Development一书。我现在被困住了,无法自救。
这是我的代码中导致问题的部分。
import os
from flask_script import Manager
from flask import Flask, render_template, session, redirect, url_for, flash
from flask_wtf import FlaskForm
from flask_bootstrap import Bootstrap
from flask_moment import Moment
from wtforms import StringField, SubmitField, validators
from wtforms.validators import Required
from flask_sqlalchemy import SQLAlchemy
class NameForm(FlaskForm):
name = StringField('What is your name?', validators=[Required()])
submit = SubmitField('Submit')
class Role(db.Model):
__tablename__ = 'roles'
id = db.Column(db.Integer, primary_key=True)
name = db.Column(db.String(64), unique=True)
users = db.Column('User',backref='role')
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.Interger, db.ForeignKey('roles.id')
def __repr__(self):
return '<User %r>' % self.username
当我尝试启动外壳程序时,出现以下错误消息:
line 30
def __repr__(self):
^
SyntaxError: invalid syntax
请问问题出在哪里?
答案 0 :(得分:0)
您在此行中缺少右括号()
)
role_id = db.Column(db.Interger, db.ForeignKey('roles.id')