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

StackOverflow https://stackoverflow.com/questions/8949252

  •  07-11-2019
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题

I keep getting an error that says

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

The code I have is too long to post here. What general scenarios would cause this AttributeError, what is NoneType supposed to mean and how can I narrow down what's going on?

没有正确的解决方案

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