title: Python Syntax error: non-ASCII
body: <p>I keep getting an error and I'm not sure on how to fix it.</p>
  
  <p>The Code line:</p>
  
  <pre><code>if not len(lines) or lines[-1] == '' or lines[-1] == '▁':
      lines = list(filter(lambda line: False if line == '' or line == '▁' else True, list(lines)))
  </code></pre>
  
  <p>Output:
  SyntaxError: Non-ASCII character '\xe2' in file prepare_data.py on line 512, but no encoding declared; see <a href="http://python.org/dev/peps/pep-0263/" rel="nofollow noreferrer">http://python.org/dev/peps/pep-0263/</a> for details</p>