ImportError：在Google App Engine上没有名为flask的模块

Question

I'm following this tutorial and I'm trying to develop a basic Flask app to run on the Google App Engine. I am using Windows and have followed the guide exactly at every step.

1. I have set up my Virtual Environment and tested if flask was in it using the import sys in the virtual environment interpreter and it is there. simpleJson, Werkzeug, and Jinja2 are also there. I installed them using pip install in the virtual environment.

2. After checking the logs I only get a <type 'exceptions.ImportError'> saying:

 <type 'exceptions.ImportError'>: No module named flask args = ('No module named flask',) message = 'No module named flask' 

1. This is my folder structure:

 gae/ /app/ __init__.py models.py settings.py views.py /venv/ /Include /Lib /Scripts /flask/ /simplejson/ /werkzeug/ /jinja2/ app.yaml main.py 

I have read different questions here and googled similar issues, but after trying several possible solutions, I am still not able to fix it. At this point I don't know what I am missing, I am new to flask and GAE. Any suggestion on what I am doing wrong? Thanks in advance.

This is my init .py:

from flask import Flask
import settings

app = Flask('app')
app.config.from_object('app.settings')

import views

This is my app.yaml:

application: app
version: 1
runtime: python
api_version: 1

handlers:
- url: .*
  script: main.py

This is how my requirements.txt looks:

Flask==0.9  
Jinja2==2.6 
Werkzeug==0.8.3 
simplejson==3.0.7

This is my main.py:

from google.appengine.ext.webapp.util
import run_wsgi_app from app import app

run_wsgi_app(app)

Answer 1

看我对类似问题的回答，逐步说明如何在Windows上运行Python，Flask，Virtualenv和Google App Engine，并验证您是否以相同的方式进行操作： 使用Google App Engine时无法导入Flask

Answer 2

visit link given below; its a boilerplate project template for running a Flask-based application on Google App Engine (Python)
https://github.com/kamalgill/flask-appengine-template

Answer 3

尝试在根gae目录中粘贴空白的init .py文件，然后进行导入：

from gae.flask import Flask