title: How to respect PEP8 when accessing multiple nested dictionaries?
body: <p>I have a line of code like this:</p>
  
  <pre><code>mydict['description_long'] = another_dict['key1'][0]['a_really_long_key']['another_long_key']['another_long_key3']['another_long_key4']['another_long_key5']
  </code></pre>
  
  <p>How do I format it so it adheres to the PEP8 guidelines?</p>