因為是新手，所以對程式碼故障問題不是很了解，本來按書上的操作進行的，但是在最後一步上傳到PYPI出現了錯誤500，下面是上傳時的代碼

RANGEdeMacBook-Pro:beerkf range$ python3 setup.py register
running register
running check
We need to know who you are, so please choose either:

1. use your existing login,

2. #register as a new user,

3. #have the server generate a new password for you (and email it to you), or

4. #quit
   Your selection [default 1]:

1
Username: RangeM
Password:
Registering beerkf to https://upload.pypi.org/legacy/
Server response (500): <urlopen error [SSL: CERTIFICATE_VERIFY_FAILED ] certificate verify failed (_ssl.c:749)>

下面再貼上setup程式碼，不知道是哪裡出錯了
from distutils.core import setup

setup(

name            ='beerkf',
version         ='1.0.0',
py_modules      ='beerkf',
author          ='hfpython',
author_email    ='hfpython@headfirstlabs.com',
url             ='http://www.headfirstlabs.com',
description     ='A simple print function for nested list.',

)