title: Running flask + gevent + requests not serving 'concurrently'
body: <p>I kick off my flask app like this:</p>
  
  <pre><code>#!flask/bin/python
  from app import app_instance
  from gevent.pywsgi import WSGIServer
  
  #returns and instance of the application - using function to wrap configuration
  app = app_instance()
  http_server = WSGIServer(('',5000), app)
  http_server.serve_forever()
  </code></pre>
  
  <p>And then when I try to execute this code, the requests call blocks until the original request times out. I'm basically invoking a webservice in the same flask app. What am I misunderstanding about gevent? Wouldn't the thread yield when an i/o event occurred?</p>
  
  <pre><code>@webapp.route("/register", methods=['GET', 'POST'])
  def register():
      form = RegistrationForm(request.form, csrf_enabled=False)
      data = None
      if request.method == 'POST' and form.validate():
          data= {'email': form.email, 'auth_token': form.password,
                  'name' : form.name, 'auth_provider' : 'APP'}
          r = requests.post('http://localhost:5000', params=data)
          print('status' + str(r.status_code))
          print(r.json())
      return render_template('register.html', form=form)
  </code></pre>