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Why do I get AttributeError: 'NoneType' object has no attribute 'something'?

  • Thread starter Thread starter Jacob Griffin
  • Start date Start date
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Jacob Griffin

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I am getting an error message that says

Code:
AttributeError: 'NoneType' object has no attribute 'something'

How can I understand this message?

What general scenarios might cause such an AttributeError, and how can I identify the problem?



This is a special case of AttributeErrors. It merits separate treatment because there are a lot of ways to get an unexpected None value from the code, so it's typically a different problem; for other AttributeErrors, the problem might just as easily be the attribute name.

See also What is a None value? and What is a 'NoneType' object? for an understanding of None and its type, NoneType.
<p>I am getting an error message that says</p>
<pre><code>AttributeError: 'NoneType' object has no attribute 'something'
</code></pre>
<p><strong>How can I understand this message?</strong></p>
<p>What general scenarios might cause such an <code>AttributeError</code>, and how can I identify the problem?</p>
<hr />
<p><sub>This is a special case of <code>AttributeError</code>s. It merits separate treatment because there are a lot of ways to get an unexpected <code>None</code> value from the code, so it's typically a different problem; for other <code>AttributeError</code>s, the problem might just as easily be the attribute name.</sub></p>
<p><sub>See also <a href="https://stackoverflow.com/questions/19473185">What is a None value?</a> and <a href="https://stackoverflow.com/questions/21095654">What is a &#39;NoneType&#39; object?</a> for an understanding of <code>None</code> and its type, <code>NoneType</code>.</sub></p>
 

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