title: Restarting with windowsapi reloader
body: <p>I run my flask code. at first, it was ok but after sometimes it doesn't work and I got this error:</p>
  <blockquote>
  <p>Restarting with windowsapi reloader</p>
  </blockquote>
  <p>My Code:</p>
  <pre><code>x = pd.read_csv('clas.csv')
  
  app = Flask(__name__) 
  
  @app.route('/&lt;x&gt;') 
  class QuotesView(FlaskView):
      def index(self):  
          return &quot;&lt;br&gt;&quot;.join(x)
  QuotesView.register(app)
       
  if __name__ == '__main__':
      app.run(debug=False)
  </code></pre>