title: heroku deployment problems app not compitable
body: <p>I am uploading my project to heroku but it says </p>
  
  <pre><code>-----&gt; App not compatible with buildpack: https://buildpack-registry.s3.amazonaws.com/buildpacks/heroku/python.tgz
         More info: https://devcenter.heroku.com/articles/buildpacks#detection-failure
   !     Push failed
  </code></pre>
  
  <p>but
  I have requirements.txt. Any help?</p>