title: ImportError: cannot import name 'format_exc' Error
body: <p>trying to use python3 and this library and im receiving this error <code>ImportError: cannot import name 'format_exc'</code></p>
  
  <p>tried uninstalling python3 and reinstalling, im also on Ubuntu 18</p>
  
  <p>need it to run my code, the code works but python3 does not</p>