1.pip install pymysql报错

    pip install pymysql
    WARNING: Retrying (Retry(total=4, connect=None, read=None, redirect=None, status=None)) after connection broken by 'ConnectTimeoutError(<pip._vendor.urllib3.connection.HTTPSConnection object at 0x00000202D71DF7C0>, 'Connection to py
    pi.org timed out. (connect timeout=15)')': /simple/pymysql/
    ERROR: Operation cancelled by user

2.使用一些国内的pip源

pip install pymysql -i http://pypi.douban.com/simple --trusted-host pypi.douban.com

    pip install pymysql -i http://pypi.douban.com/simple --trusted-host pypi.douban.com
    Looking in indexes: http://pypi.douban.com/simple
    Collecting pymysql
      Downloading http://pypi.doubanio.com/packages/4f/52/a115fe175028b058df353c5a3d5290b71514a83f67078a6482cff24d6137/PyMySQL-1.0.2-py3-none-any.whl (43 kB)
         |████████████████████████████████| 43 kB 81 kB/s
    Installing collected packages: pymysql
    Successfully installed pymysql-1.0.2