Prototypical web security application: User browses site and places items in his shopping cart Server hands of the user when he is ready to check out User submits his credit card number User receives confirmation of his operation
python安装完毕后，提示找不到ssl模块：
[wwwpythontab.com ~]$ python
Python 2.7.15 (default, Oct 23 2018, 18:08:43)
[GCC 4.4.7 20120313 (Red Hat 4.4.7-23)] on linux2
Type help, copyright, credits or license for more information.
>>> import ssl
Traceback (m
