pip遇到的问题

一、安装超时

开始使用pip install -U pytest安装，安装超时

• 解决
  自定义超时时间：pip --default -timeout=1000 install -U pytest

二、使用pip安装pytest-html等失败

  Could not find a version that satisfies the requirement pytest-html (from versions: )
No matching distribution found for pytest-html

• 解决
  使用easy_insatll安装

easy_install pytest-html

三、安装jsonpath-rw时失败

  Could not fetch URL https://pypi.douban.com/simple/jsonpath-rw/: There was a problem confirming the ssl certificate: HTTPSConnectionPool(host='pypi.douban.com', port=443): Max retries
 exceeded with url: /simple/jsonpath-rw/ (Caused by SSLError(SSLError(1, '[SSL: CERTIFICATE_VERIFY_FAILED] certificate verify failed (_ssl.c:852)'),)) - skipping

• 解决：
  pip install jsonpath_rw --index-url http://mirrors.aliyun.com/pypi/simple/ --trusted-host mirrors.aliyun.com
  或者先升级pip：
  python -m pip install --upgrade pip --index-url http://mirrors.aliyun.com/pypi/simple/ --trusted-host mirrors.aliyun.com