python3 app on Heroku: Application Error
<p>My code:
<a href="https://github.com/zxq2233/zmirror" rel="nofollow">https://github.com/zxq2233/zmirror</a>
I have deployed my python website on heroku, but when I visit the page, I see a generic heroku "application error" message. </p>

<p>My Procfile contains this line:</p>

<pre><code>web: python wsgi.py
</code></pre>