pycharm安装第三方库失败
<I>file选择 settings

<II>选择project Interpreter

<III>选择这个 Manage Repositories

<IV>更改下载源,点+,新增
可以将原来的 下载源 删除
默认 https://pypi.python.org/simple
阿里云 http://mirrors.aliyun.com/pypi/simple/
豆瓣 http://pypi.douban.com/simple/

<V>选择要安装的库,和选择options
不选择options会失败

选择了
仍然报错:
Non-zero exit code (1)
pycharm The repository located at pypi.douban.com is not a trusted or secure
解决办法 :新建pip文件夹 -->新建文件 pip.ini


豆瓣:
1 #正确写法
2 [global]
3 timeout = 6000
4 index-url = https://pypi.douban.com/simple
5
6 [install]
7 use-mirrors = true
8 mirrors = https://pypi.douban.com/simple/
9 trusted-host=pypi.douban.com
阿里云
1 #正确写法
2 [global]
3 timeout = 6000
4 index-url = http://mirrors.aliyun.com/pypi/simple/
5
6 [install]
7 use-mirrors = true
8 mirrors = http://mirrors.aliyun.com/pypi/simple/
9 trusted-host=mirrors.aliyun.com
1 单个cmd安装命令
2 pip install numpy -i http://mirrors.aliyun.com/simple/
3 可能会出错 加上--trusted-host=mirrors.aliyun.com
4 pip install numpy -i http://mirrors.aliyun.com/simple/ --trusted-host=mirrors.aliyun.com
来源:oschina
链接:https://my.oschina.net/u/4266515/blog/3329734