当然要先安装PIP

下载，

https://bootstrap.pypa.io/get-pip.py

直接入到python 执行

wget https://bootstrap.pypa.io/get-pip.py -O - | python

C:\Python27\python.exe get-pip.py

进入网站，

https://pypi.org/project/dnspython/

搜索相应模块  dnspython

按官网提示安装

pip install dnspython

win 安装方式

C:\Scripts\pip3.7.exe install dnspython
Collecting dnspython
  Downloading https://files.pythonhosted.org/packages/a6/72/209e18bdfedfd78c6994e9ec96981624a5ad7738524dd474237268422cb8/dnspython-1.15.0-py2.py3-none-any.whl (177kB)
    100% |████████████████████████████████| 184kB 316kB/s
Installing collected packages: dnspython
Successfully installed dnspython-1.15.0