Win10：Pycharm导入模块失败&pip换源

1 错误

Solving environment: ...working... failed

PackagesNotFoundError: The following packages are not available from current channels:

  - opencv-python

Current channels:

  - http://mirrors.tuna.tsinghua.edu.cn/anaconda/cloud/pytorch/win-64
  - http://mirrors.tuna.tsinghua.edu.cn/anaconda/cloud/pytorch/noarch
  - http://mirrors.tuna.tsinghua.edu.cn/anaconda/pkgs/main/win-64
  - http://mirrors.tuna.tsinghua.edu.cn/anaconda/pkgs/main/noarch
  - http://mirrors.tuna.tsinghua.edu.cn/anaconda/pkgs/free/win-64
  - http://mirrors.tuna.tsinghua.edu.cn/anaconda/pkgs/free/noarch
  - http://mirrors.tuna.tsinghua.edu.cn/anaconda/cloud/conda-forge/win-64
  - http://mirrors.tuna.tsinghua.edu.cn/anaconda/cloud/conda-forge/noarch
  - http://mirrors.tuna.tsinghua.edu.cn/anaconda/cloud/msys2/win-64
  - http://mirrors.tuna.tsinghua.edu.cn/anaconda/cloud/msys2/noarch
  - http://mirrors.tuna.tsinghua.edu.cn/anaconda/cloud/bioconda/win-64
  - http://mirrors.tuna.tsinghua.edu.cn/anaconda/cloud/bioconda/noarch

To search for alternate channels that may provide the conda package you're
looking for, navigate to

    https://anaconda.org

and use the search bar at the top of the page.

2 解决办法

(1)pip更换为国内源

可更新pip源，以加快下载速度：

回到 C盘>用户>【用户名】目录下，创建pip文件夹，在里边创建pip.ini文件，具体操作如下：

在本目录下打开终端，输入如下指令：

mkdir pip

cd pip

vi pip.ini

进入pip.ini文件后，输入如下内容，并保存更改：

[global]
index-url = https://pypi.tuna.tsinghua.edu.cn/simple
[install]
trusted-host = https://pypi.tuna.tsinghua.edu.cn  

参考链接：https://blog.youkuaiyun.com/bornfree5511/article/details/104139468

(2)pip安装

在该虚拟环境下输入如下指令（用pip安装）：

pip install opencv-python