title: unable to load app 0 (mountpoint='') - Flask app with uwsgi
body: <p>I have a python flask app in below structure</p>
  
  <pre><code>Admin
     |-app
         | -__init__.py
     |-wsgi.py
  </code></pre>
  
  <p>My wsgi.py contents is as follows</p>
  
  <pre><code>#!/usr/bin/python
  
  from app import app
  from app import views
  
  
  if __name__ == '__main__':
      app.run()
  </code></pre>
  
  <p>Contents of <strong>init</strong>.py in app package</p>
  
  <pre><code>#!/usr/bin/python
  
  from flask import Flask
  
  app = Flask(__name__)
  </code></pre>
  
  <p>I started wsgi as below</p>
  
  <pre><code>uwsgi --socket 127.0.0.1:8080 --protocol=http -w wsgi
  </code></pre>
  
  <p>The server is started successfully but I can error in startup log as below</p>
  
  <pre><code>*** WARNING: you are running uWSGI without its master process manager ***
  your processes number limit is 709
  your memory page size is 4096 bytes
  detected max file descriptor number: 256
  lock engine: OSX spinlocks
  thunder lock: disabled (you can enable it with --thunder-lock)
  uwsgi socket 0 bound to TCP address 127.0.0.1:8080 fd 3
  Python version: 2.7.6 (default, Sep  9 2014, 15:04:36)  [GCC 4.2.1 Compatible Apple LLVM 6.0 (clang-600.0.39)]
  *** Python threads support is disabled. You can enable it with --enable-threads ***
  Python main interpreter initialized at 0x7fd7eb6000d0
  your server socket listen backlog is limited to 100 connections
  your mercy for graceful operations on workers is 60 seconds
  mapped 72760 bytes (71 KB) for 1 cores
  *** Operational MODE: single process ***
  unable to load app 0 (mountpoint='') (callable not found or import error)
  *** no app loaded. going in full dynamic mode ***
  *** uWSGI is running in multiple interpreter mode ***
  spawned uWSGI worker 1 (and the only) (pid: 70195, cores: 1)
  </code></pre>
  
  <p>Similar issues were posted but whatever solutions offered for those issues are already in my code. I am not able to find why I am getting this error.</p>
  
  <p>Thanks</p>