python3 安装 requests

1，python3 安装 requests

$ pip3 search requests
$ pip3 install  requests
$ pip3 list | grep requests
requests          2.22.0

$ python3
Python 3.7.4 (v3.7.4:e09359112e, Jul  8 2019, 14:54:52)
[Clang 6.0 (clang-600.0.57)] on darwin
Type "help", "copyright", "credits" or "license" for more information.
>>> import requests
>>>

参考：

1. 安装 Requests
2. Python 教程
3. Python 3 教程