Python 在EB上部署结构化Flask应用程序-查看函数映射错误

我最近一直在努力将我的Flask应用程序部署到AWS ElasticBeanstalk。我对网络项目和AWS还比较陌生，所以每天都很艰难。每隔一段时间，我会将我的项目部署到EB（我过去一直能够解决问题），但自从我将我的应用程序从一个单一的

application.py

重组为一个更结构化的方法以来，我一直在挣扎。部署本身已成功，但我面临500个错误。日志上写着：

[Wed Apr 19 00:11:57.895790 2017] [:error] mod_wsgi (pid=15947): Target WSGI script '/opt/python/current/app/app/members/views.py' cannot be loaded as Python module. [Wed Apr 19 00:11:57.895846 2017] [:error] mod_wsgi (pid=15947): Exception occurred processing WSGI script '/opt/python/current/app/app/members/views.py'. [Wed Apr 19 00:11:57.895865 2017] [:error] Traceback (most recent call last): [Wed Apr 19 00:11:57.895881 2017] [:error] File "/opt/python/current/app/app/members/views.py", line 14, in [Wed Apr 19 00:11:57.895903 2017] [:error] @application.route('/') [Wed Apr 19 00:11:57.895909 2017] [:error] File "/opt/python/run/venv/lib/python2.7/site-packages/flask/app.py", line 1080, in decorator [Wed Apr 19 00:11:57.895921 2017] [:error] self.add_url_rule(rule, endpoint, f, **options) [Wed Apr 19 00:11:57.895935 2017] [:error] File "/opt/python/run/venv/lib/python2.7/site-packages/flask/app.py", line 64, in wrapper_func [Wed Apr 19 00:11:57.895944 2017] [:error] return f(self, *args, **kwargs) [Wed Apr 19 00:11:57.895949 2017] [:error] File "/opt/python/run/venv/lib/python2.7/site-packages/flask/app.py", line 1051, in add_url_rule [Wed Apr 19 00:11:57.895956 2017] [:error] 'existing endpoint function: %s' % endpoint) [Wed Apr 19 00:11:57.895969 2017] [:error] AssertionError: View function mapping is overwriting an existing endpoint function: index

app\members\views.py

from flask import Flask, flash, request from urlparse import urlparse, urljoin from urllib2 import urlopen from flask_user import SQLAlchemyAdapter, UserManager, current_user import os from apscheduler.schedulers.background import BackgroundScheduler import pandas as pd from app.members.models import db, User, AcademicData, Role, UserRoles, Query from passlib.hash import bcrypt import datetime import json # Initializes application application = Flask(__name__) application.config.from_object("app.config.Config") # Initializes db db.init_app(application) # Registers user model with db with application.app_context(): db.create_all() # Creates tables defined db_adapter = SQLAlchemyAdapter(db, User) # Register the User model @application.before_first_request def initialize(): scheduler = BackgroundScheduler() scheduler.start() scheduler.add_job(updateData, trigger = "interval", days = 1) def updateData(): ... @application.context_processor def injectFunction(): def getDataTable(id): ... import members.views # Initialize flask-user user_manager = UserManager(db_adapter, application,register_view_function = members.views.protected_register) from flask import redirect, url_for, render_template, request from flask_user import login_required, roles_required, views as user_views from app import application, SITE_ROOT import json import os import pandas as pd @application.route('/') def index(): """ Index view. Currently the dashboard. :return: """ return redirect(url_for('dashboard')) @application.route('/dashboard') @login_required def dashboard(): ... return render_template('dashboard.html') @application.route('/table') @login_required def table(): return render_template('table.html') @application.errorhandler(404) def not_found(error): return render_template('404.html') @application.errorhandler(500) @application.errorhandler(503) def server_error(error): return render_template('503.html') @roles_required('admin') def protected_register(): return user_views.register() 从flask导入重定向、url\u for、呈现模板、请求 从flask\u需要用户导入登录名、需要角色、作为用户视图的视图 从应用程序导入应用程序，站点\u根 导入json 导入操作系统 作为pd进口熊猫 @application.route（“/”） def index（）： """ 索引视图。当前为仪表板。 ：返回： """ 返回重定向（“仪表板”）的url\u @application.route（“/dashboard”） @需要登录 def仪表板（）： ... 返回呈现模板（'dashboard.html'） @application.route（“/table”） @需要登录 def table（）： 返回render_模板（'table.html'） @application.errorhandler（404） 未找到def_（错误）： 返回render_模板（'404.html'） @application.errorhandler（500） @application.errorhandler（503） def服务器_错误（错误）： 返回渲染模板（'503.html'） @需要的角色（“管理员”） def保护_寄存器（）： 返回用户视图。注册表（） 我正按照这个例子来设置我的WSGIPath，但既然@davidism指出了这一点，我就尝试了一种不同的方法，并且成功了。我创建了一个

app.wsgi

文件，它基本上只导入我的应用程序对象，并在我的

.ebextensions/.config

中设置

WSGIPath:app/app.wsgi

。该应用程序现在通过Elastic Beanstalk成功部署和启动。我的静态资源停止工作，但我必须更新Elastic Beanstalk控制台中

Configuration>Software Configuration>static Files

下静态文件夹的映射

---

谢谢

错误显示为

AssertionError:View function mapping正在覆盖现有端点函数：index

-您是否从任何位置导入

views.py

中的

app

，以及（无论哪种方式）您是否在名为

index

的函数上定义了另一个路由（不管URL是否不同，函数的名称是什么）。在

views.py

之外没有路由（至少我没有定义）在项目中没有其他名为

index

的函数。我从app import application中为路由和

import app

创建了

。最后一次导入是访问共享全局变量的临时措施。这似乎是一个糟糕的模式，将在时间内更改。我还应该提到，该应用程序在使用内置服务器在本地运行。感谢您的输入和您在Flask上的工作。我将处理该示例，并在获得该示例后包含一个。我已检查了所有视图函数和路由，没有冲突。从Flask使用内置服务器运行时不会发生这种情况。我以前犯过这个错误（这给了我一个内置服务器的错误）但至少现在它不是偶然地将两个视图函数命名为相同的。也许这与在我的
\uu init.py\uuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuu
views.py中的函数
to
def newFunctionForTesting（）
产生
AssertionError:View函数映射正在覆盖现有的端点函数：newFunctionForTesting
。为了以防万一，我还从我的
视图.py中删除了
导入应用程序
。
from flask import Flask, flash, request
    from urlparse import urlparse, urljoin
    from urllib2 import urlopen
    from flask_user import SQLAlchemyAdapter, UserManager, current_user
    import os
    from apscheduler.schedulers.background import BackgroundScheduler
    import pandas as pd
    from app.members.models import db, User, AcademicData, Role, UserRoles, Query
    from passlib.hash import bcrypt
    import datetime
    import json

    # Initializes application
    application = Flask(__name__)
    application.config.from_object("app.config.Config")

    # Initializes db
    db.init_app(application)

    # Registers user model with db
    with application.app_context():
        db.create_all() # Creates tables defined
        db_adapter = SQLAlchemyAdapter(db, User)        # Register the User model

    @application.before_first_request
    def initialize():
        scheduler = BackgroundScheduler()
        scheduler.start()
        scheduler.add_job(updateData, trigger = "interval", days = 1)



    def updateData():
        ...


    @application.context_processor
    def injectFunction():
        def getDataTable(id):
            ...

    import members.views

    # Initialize flask-user
    user_manager = UserManager(db_adapter, application,register_view_function = members.views.protected_register)
from flask import redirect, url_for, render_template, request
    from flask_user import login_required, roles_required, views as user_views
    from app import application, SITE_ROOT
    import json
    import os
    import pandas as pd

    @application.route('/')
    def index():
        """
        Index view. Currently the dashboard.
        :return: 
        """
        return redirect(url_for('dashboard'))

    @application.route('/dashboard')
    @login_required
    def dashboard():
        ...
        return render_template('dashboard.html')

    @application.route('/table')
    @login_required
    def table():
        return render_template('table.html')

    @application.errorhandler(404)
    def not_found(error):
         return render_template('404.html')

    @application.errorhandler(500)
    @application.errorhandler(503)
    def server_error(error):
        return render_template('503.html')

    @roles_required('admin')
    def protected_register():
        return user_views.register()