下载pdfplumber 时出错

错误信息：

Could not install packages due to an OSError: HTTPSConnectionPool(host='files.pythonhosted.org', port=443): Max retries exceeded with url: /p
ackages/96/8f/7a6d529e4a1752d1d902ff230ad4908505a51b4a879e9a5688355b2d95fe/pdfplumber-0.7.4-py3-none-any.whl (Caused by ConnectTimeoutError(<pip._ve
ndor.urllib3.connection.HTTPSConnection object at 0x0000026D0E729A00>, 'Connection to files.pythonhosted.org timed out. (connect timeout=15)'))

 

解决办法：换镜像源 加上--trust-host

pip install -i https://pypi.tuna.tsinghua.edu.cn/simple --trusted-host pypi.tuna.tsinghua.edu.cn pdfplumbe