在使用python导入模块时出错

Question

通过pip安装google-auth

try: 
    from  google.auth.transport import requests as GoogleRequest
    print('Google Request include')
except:
    print('Google Request NOT include')

try: 
    from google.oauth2 import id_token as GoogleToken
    print('Google Token include')
except:
    print('Google Token NOT include')

Python：2.7我已经在文件中安装并导入了一个模块，但是得到了输出

模块链接 https://google-auth.readthedocs.io/en/latest/reference/google.auth.html

Google Request NOT include
Google Token include
Google Request NOT include
Google Request include
Google Token include
Google Token include

为什么？请帮助我