title: Python3.5/http/client.py SyntaxError: invalid syntax
body: <p>I am a beginner in python. Unfortunately, I just deleted the:</p>
  
  <pre><code>    ..Python3.5/http/ 
  </code></pre>
  
  <p>directory.</p>
  
  <p>To fix that, I downloaded the same from 
          <a href="https://github.com/python/cpython/tree/master/Lib/http" rel="nofollow noreferrer">https://github.com/python/cpython/tree/master/Lib/http</a></p>
  
  <p>But when I run any script that needs the content of the deleted folder, I get this error</p>
  
  <pre><code>    File "/usr/lib/python3.5/http/client.py", line 1063
          chunk = f"{len(chunk):X}\r\n".encode('ascii') + chunk \
                              ^
      SyntaxError: invalid syntax
  </code></pre>
  
  <p>What is the syntax error and how can I fix this ?</p>
  
  <p>Thanks in Advance</p>