Question

我已经安装了 sklearn，但是当我运行一个导入 sklearn 的 python 文件时，我得到了这个：

Traceback (most recent call last):
  File "first.py", line 3, in <module>
    from sklearn import datasets
ModuleNotFoundError: No module named 'sklearn'

这是我安装sklearn时的结果：

Requirement already satisfied: scikit-learn in c:\users\user\appdata\local\programs\python\python38\lib\site-packages (0.24.0)
Requirement already satisfied: numpy>=1.13.3 in c:\users\user\appdata\local\programs\python\python38\lib\site-packages (from scikit-learn) (1.19.4)
Requirement already satisfied: scipy>=0.19.1 in c:\users\user\appdata\local\programs\python\python38\lib\site-packages (from scikit-learn) (1.5.4)
Requirement already satisfied: threadpoolctl>=2.0.0 in c:\users\user\appdata\local\programs\python\python38\lib\site-packages (from scikit-learn) (2.1.0)
Requirement already satisfied: joblib>=0.11 in c:\users\user\appdata\local\programs\python\python38\lib\site-packages (from scikit-learn) (1.0.0)

Answer 1

首先，确保您将 pip 更新到最新版本：

python -m pip install --upgrade pip

然后尝试：

pip install -U scikit-learn" on widnows terminal (cmd)

或者用 conda 试试（如果你的电脑上有它）

conda install scikit-learn

还要确保你已经安装了 numpy 和 scipy

pip install numpy

pip install scipy

Answer 2

如果您使用 anaconda，您仍然可以使用 pip 安装软件包：

pip install -U scikit-learn scipy matplotlib

对于 Python 3.x 使用：

pip3 install -U scikit-learn scipy matplotlib

即使我已经安装了 sklearn，我也无法导入 sklearn

2 个答案: