title: How to append/update new values to the rows of a existing csv file from a new csv file as a new column in python using pandas or something else
body: <blockquote>
  <blockquote>
  <p>Old file</p>
  </blockquote>
  </blockquote>
  <p>Name, 2015</p>
  <p>Jack, 205</p>
  <p>Jill, 215</p>
  <p>Joy, 369</p>
  <blockquote>
  <blockquote>
  <p>New file</p>
  </blockquote>
  </blockquote>
  <p>Name, 2016</p>
  <p>Hill, 289</p>
  <p>Jill, 501</p>
  <p>Rauf, 631</p>
  <p>Jack, 520</p>
  <p>Kay, 236</p>
  <p>Joy, 615</p>
  <blockquote>
  <blockquote>
  <p>Here what i want:</p>
  </blockquote>
  </blockquote>
  <p>Name, 2015, 2016</p>
  <p>Jack, 205, 520</p>
  <p>Jill, 215, 501</p>
  <p>Joy, 369, 615</p>
  <p>Hill, , 289</p>
  <p>Rauf, , 631</p>
  <p>Kay, , 236</p>