因为是新手，所以对代码故障问题不是很了解，本来按书上的操作进行的，但是在最后一步上传到PYPI出现了错误500，下面是上传时的代码

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)>

下面再贴上setup代码，不知道是哪里出错了
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.',

)