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

AttributeError: 'NoneType' object has no attribute 'convert'这个错误通常是在Python中遇到的。它表示你尝试对一个None类型的对象调用一个不存在的属性'convert'。根据提供的引用内容，我们可以参考和来了解更多关于AttributeError的信息和解决方法。根据，这个错误通常发生在你尝试在一个None类型的对象上调用某个属性时。而则提供了一些常见的原因和解决方法。你可以检查一下你的代码，确保你正在调用正确的属性，并且确保对象不是None类型。<span class="em">1</span><span class="em">2</span><span class="em">3</span>
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