有人能帮帮我吗，我不知道该怎么解决这个问题

student@jethost:~$  pip install unroll 

收集展开使用缓存的https://files.pythonhosted.org/packages/fe/3c/124bdf4276e582c8e4e23ce27c4462a259f6608df8e550d30f003f2b4189/unroll-0.1.0.tar.gz完成命令python的输出setup.pyegg_info：下载http://pypi.python.org/packages/source/d/distribute/distribute-0.6.14.tar.gzTraceback（最近调用的最后一次）：File"/home/学生/anaconda3/lib/python3.6/site-包/ez_setup.py"，第143行，在use_setuptools引发了重要错误重要错误

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<string>", line 1, in <module>
  File "/tmp/pip-install-8ryfpf0v/unroll/setup.py", line 2, in <module>
    ez_setup.use_setuptools()
  File "/home/student/anaconda3/lib/python3.6/site-packages/ez_setup.py", line 145, in use_setuptools
    return _do_download(version, download_base, to_dir, download_delay)
  File "/home/student/anaconda3/lib/python3.6/site-packages/ez_setup.py", line 124, in _do_download
    to_dir, download_delay)
  File "/home/student/anaconda3/lib/python3.6/site-packages/ez_setup.py", line 193, in download_setuptools
    src = urlopen(url)
  File "/home/student/anaconda3/lib/python3.6/urllib/request.py", line 223, in urlopen
    return opener.open(url, data, timeout)
  File "/home/student/anaconda3/lib/python3.6/urllib/request.py", line 532, in open
    response = meth(req, response)
  File "/home/student/anaconda3/lib/python3.6/urllib/request.py", line 642, in http_response
    'http', request, response, code, msg, hdrs)
  File "/home/student/anaconda3/lib/python3.6/urllib/request.py", line 570, in error
    return self._call_chain(*args)
  File "/home/student/anaconda3/lib/python3.6/urllib/request.py", line 504, in _call_chain
    result = func(*args)
  File "/home/student/anaconda3/lib/python3.6/urllib/request.py", line 650, in http_error_default
    raise HTTPError(req.full_url, code, msg, hdrs, fp)
urllib.error.HTTPError: HTTP Error 403: SSL is required

----------------------------------------

命令"pythonsetup.pyegg_info"失败与错误代码1在 /tmp/pip-install-8ryfpf0v/unroll/