AssertionError:View function mapping正在重写现有的端点函数：index

Question

当我试图使用热水瓶包装顶部的管理脚本时，出现了一个错误。我真的很想知道如何解决这个错误。我想在某个地方出现了错误，我无法理解。我使用的是Flask 0.12。 我正在学习如何使用烧瓶目录树：

README.rst manage.py thermos

./thermos:
__init__.py forms.py models.py static thermos.db views.py
__init__.pyc forms.pyc models.pyc templates thermos.pyc views.pyc

./thermos/static:
css img js

./thermos/static/css:
main.css normalize.css normalize.min.css

./thermos/static/img:

./thermos/static/js:
main.js vendor

./thermos/static/js/vendor:
jquery-1.11.2.min.js modernizr-2.8.3-respond-1.4.2.min.js

./thermos/templates:
404.html add.html base.html form_macros.html index.html

运行python时管理.pyrunserver引发了此错误：

^{pr2}$

这是管理.py公司名称：

#! /usr/bin/env python

from flask_script import Manager,prompt_bool
from thermos import app,db

import thermos.models 


manager = Manager(app)

@manager.command
def initdb():
    db.create_all()
    db.session.add(User(username='olatunji',email='ayo19602003@yahoo.com'))
    db.session.add(User(username='ayobami',email='bambamaks37@gmail.com'))
    db.session.commit()
    print "Initialized the database"

@manager.command
def dropdb():
    if prompt_bool(
        "Are you sure you want to lose all your data"):
        db.drop_all()
        print 'Dropped the database'

if __name__ == '__main__':
    manager.run()

以及初始化.py：

import os

from flask import Flask
from flask_sqlalchemy import SQLAlchemy

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

app = Flask(__name__)

app.config['SQLALCHEMY_DATABASE_URI']= 'sqlite:///' + os.path.join(basedir,'thermos.db')
app.config['SQLALCHEMY_TRACK_MODIFICATIONS'] = False
app.config['DEBUG'] = True
db = SQLAlchemy(app)

import models
import views

这是视图.py公司名称：

from flask import render_template,flash,redirect,url_for

from thermos import app,db
from forms import BookmarkForm
from models import User,Bookmark

def logged_in_user():
    return User.query.filter_by(username='olatunji').first()

@app.route('/index')
def index():
    return render_template('index.html',new_bookmarks=Bookmark.newest(5))

@app.route('/add',methods=['GET','POST'])
def add():
    form = BookmarkForm()
    if form.validate_on_submit():
        url = form.url.data
        description =form.description.data
        bm = Bookmark(user=logged_in_user(),url=url,description=description)
        db.session.add(bm)
        db.session.commit()
        flash("Stored '{}'".format(description))
        return redirect(url_for('index'))
    return render_template('add.html',form=form)

@app.errorhandler(404)
def page_not_found(e):
    return render_template('404.html'),404

@app.errorhandler(500)
def server_error(e):
    return render_template('500.html'),500


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

Answer 1

错误停止后，我更正了一些打字错误。在

The __init__.py：

import os

from flask import Flask
from flask_sqlalchemy import SQLAlchemy

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

app = Flask(__name__)
app.config['SECRET_KEY'] = '\x9a\xf1\x9d\xc7\xe9t\x0f\x1a\xcb\xe1\xba\xc0\x1dK\xf6\xfb:\x88Y\xedEH\\S'
app.config['SQLALCHEMY_DATABASE_URI']= 'sqlite:///' + os.path.join(basedir,'thermos.db')
app.config['SQLALCHEMY_TRACK_MODIFICATIONS'] = False
app.config['DEBUG'] = True
db = SQLAlchemy(app)

import models
import views

在管理.py公司名称：

^{pr2}$

以及视图.py公司名称：

from flask import render_template,flash,redirect,url_for

from thermos import app,db
from forms import BookmarkForm
from models import User,Bookmark

def logged_in_user():
    return User.query.filter_by(username='olatunji').first()


@app.route('/index')
def index():
    return render_template('index.html',new_bookmarks=Bookmark.newest(5))

@app.route("/add",methods=['GET','POST'])
def add():
    form = BookmarkForm()
    if form.validate_on_submit():
        url = form.url.data
        description =form.description.data
        bm = Bookmark(user=logged_in_user(),url=url,description=description)
        db.session.add(bm)
        db.session.commit()
        flash("Stored '{}'".format(description))
        return redirect(url_for('index'))
    return render_template("add.html",form=form)

@app.errorhandler(404)
def page_not_found(e):
    return render_template('404.html'),404

@app.errorhandler(500)
def server_error(e):
    return render_template('500.html'),500


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