如何将值附加到已使用none初始化键的字典中

Question

我的代码是这样的：

Traceback (most recent call last):

  File "list_of_dir.py", line 122, in <module>
    a.sort_func()

  File "list_of_dir.py", line 91, in sort_func
    self.avg_func(self.nfp_temp_data)

  File "list_of_dir.py", line 101, in avg_func
    self.dict[i[0]].append(i[0])

AttributeError: 'int' object has no attribute 'append'

上面是代码片段，数据数组看起来像这样

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我收到此错误：

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我想要的是键＆gt;＆gt; 70,80,90,100,110被赋值为近似值+ -5