AttributeError: 'list' object has no attribute 'appen'
时间: 2024-08-04 15:01:36 浏览: 42
`AttributeError: 'list' object has no attribute 'appen'` 这是一个常见的Python错误,它表示你尝试在一个列表(list)对象上调用一个不存在的方法`appen`。在Python中,`append`是列表的一个方法,用于向列表末尾添加元素,正确的拼写应该是 `append()` 而不是 `appen`。如果你看到这个错误,检查一下你的代码,确保你是在调用列表的正确方法,并且检查了大小写。如果实在不确定,可以尝试查阅文档或者打印出变量类型来确认。
相关问题
AttributeError: list object has no attribute squeeze
AttributeError: list object has no attribute squeeze是因为在列表对象上调用squeeze方法,而列表对象并没有squeeze方法。squeeze方法是numpy数组对象的方法,用于从数组的形状中删除单维度条目。如果想要使用squeeze方法,需要将列表对象转换为numpy数组对象。
以下是一个例子:
```python
import numpy as np
# 将列表转换为numpy数组
a = np.array([[1, 2, 3], [4, 5, 6], [7, 8, 9]])
print(a)
# 使用squeeze方法删除单维度条目
b = np.squeeze(a)
print(b)
```
AttributeError: list object has no attribute iloc
`iloc` is an attribute of a Pandas DataFrame or Series object, not a list object.
If you are trying to access a specific element within a list, you can use indexing to retrieve the element at a specific position. For example, if you have a list `my_list` and you want to retrieve the element at index 0, you can use `my_list[0]`.
If you are trying to use `iloc` on a DataFrame or Series object but are receiving this error, it may be because you are trying to apply it to a list object instead. Make sure you have properly converted your data to a Pandas DataFrame or Series before trying to use the `iloc` attribute.