尝试在numpy数组中使用整数列表时输入错误：只能将整数标量数组转换为标量索引 [英] Type error when trying to use list of integers in numpy array: only integer scalar arrays can be converted to a scalar index

问题描述

以下代码：

x = list(range(0,10))
random.shuffle(x)
ind = np.argsort(x)
x[ind]

产生错误：TypeError：只能将整数标量数组转换为标量索引

produces the error: TypeError: only integer scalar arrays can be converted to a scalar index

请注意，我的问题与问题不同，
numpy数组TypeError：仅整数标量数组可以转换为标量索引，它正在尝试更复杂的东西。

Note that my problem is different than in the question, "numpy array TypeError: only integer scalar arrays can be converted to a scalar index", which is attempting something more complex.

我在这个问题上的错误是我正在尝试使用普通python列表中的索引列表 - 请参阅我的回答。我预计它比使用范围和随机播放要广泛得多。

My mistake in this question is that I'm trying to use a list of indexes on an ordinary python list -- see my answer. I expect it happens much more broadly than just with using range and shuffle.

推荐答案

问题是我试图索引 x ，一个普通的Python列表，好像它是一个numpy数组。要修复它，只需将 x 转换为numpy数组：

The problem is that I am attempting to index x, an ordinary Python list, as if it were a numpy array. To fix it, simply convert x to a numpy array:

x = list(range(0,10))
random.shuffle(x)
ind = np.argsort(x)
x = np.array(x) # This is the key line
x[ind]

（现在我已经两次了。）

(This has happened to me twice now.)

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