title: How to format a python assert statement that complies with PEP8?
body: <p>How does one format a long assert statement that complies with PEP8? Please ignore the contrived nature of my example.</p>
  
  <pre><code>def afunc(some_param_name):
      assert isinstance(some_param_name, SomeClassName), 'some_param_name must be an instance of SomeClassName, silly goose!'
  </code></pre>
  
  <p>One cannot wrap it in parenthesis, because that changes the behavior of the assert statement since it is a keyword, not a builtin function.</p>