title: How to make pylint, flake8 or pycodestyle to automatically correct errors?
body: <p>I have properly installed all of the aforementioned modules on a VM I use on Ubuntu 18.04. When running either of them on a specific script or folder, they do correctly identify style errors and output them in the console. E.g.:</p>
  
  <pre><code>(venv) .../src$ python3.6 -m flake8
  ./free_prediction.py:8:1: E303 too many blank lines (5)
  ./free_prediction.py:8:28: E231 missing whitespace after ','
  ./free_prediction.py:10:5: E225 missing whitespace around operator
  ./free_prediction.py:12:3: E225 missing whitespace around operator
  ./free_prediction.py:15:13: E225 missing whitespace around operator
  </code></pre>
  
  <p>However, the same style errors persist in the code. How can I make them to be automatically corrected?</p>