Use Let's Encrypt on Pi zero w - Raspberry Pi Forums

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hi, new raspberry.
built apache web site on raspberry pi 0 w running raspbian stretch.
tried using /etc/letsencrypt-auto obtain cert fails.
possible certificate let's encrypt under setting?

here exception. thank much.

code: select all

exception: traceback (most recent call last):   file "/opt/eff.org/certbot/venv/local/lib/python2.7/site-packages/pip/basecommand.py", line 215, in main     status = self.run(options, args)   file "/opt/eff.org/certbot/venv/local/lib/python2.7/site-packages/pip/commands/install.py", line 342, in run     requirement_set.prepare_files(finder)   file "/opt/eff.org/certbot/venv/local/lib/python2.7/site-packages/pip/req/req_set.py", line 380, in prepare_files     ignore_dependencies=self.ignore_dependencies))   file "/opt/eff.org/certbot/venv/local/lib/python2.7/site-packages/pip/req/req_set.py", line 554, in _prepare_file     require_hashes   file "/opt/eff.org/certbot/venv/local/lib/python2.7/site-packages/pip/req/req_install.py", line 278, in populate_link     self.link = finder.find_requirement(self, upgrade)   file "/opt/eff.org/certbot/venv/local/lib/python2.7/site-packages/pip/index.py", line 465, in find_requirement     all_candidates = self.find_all_candidates(req.name)   file "/opt/eff.org/certbot/venv/local/lib/python2.7/site-packages/pip/index.py", line 423, in find_all_candidates     page in self._get_pages(url_locations, project_name):   file "/opt/eff.org/certbot/venv/local/lib/python2.7/site-packages/pip/index.py", line 568, in _get_pages     page = self._get_page(location)   file "/opt/eff.org/certbot/venv/local/lib/python2.7/site-packages/pip/index.py", line 683, in _get_page     return htmlpage.get_page(link, session=self.session)   file "/opt/eff.org/certbot/venv/local/lib/python2.7/site-packages/pip/index.py", line 792, in get_page     "cache-control": "max-age=600",   file "/opt/eff.org/certbot/venv/share/python-wheels/requests-2.12.4-py2.py3-none-any.whl/requests/sessions.py", line 501, in     return self.request('get', url, **kwargs)   file "/opt/eff.org/certbot/venv/local/lib/python2.7/site-packages/pip/download.py", line 386, in request     return super(pipsession, self).request(method, url, *args, **kwargs)   file "/opt/eff.org/certbot/venv/share/python-wheels/requests-2.12.4-py2.py3-none-any.whl/requests/sessions.py", line 488, in request     resp = self.send(prep, **send_kwargs)   file "/opt/eff.org/certbot/venv/share/python-wheels/requests-2.12.4-py2.py3-none-any.whl/requests/sessions.py", line 609, in send     r = adapter.send(request, **kwargs)   file "/opt/eff.org/certbot/venv/share/python-wheels/requests-2.12.4-py2.py3-none-any.whl/requests/adapters.py", line 423, in send     timeout=timeout   file "/opt/eff.org/certbot/venv/share/python-wheels/urllib3-1.19.1-py2.py3-none-any.whl/urllib3/connectionpool.py", line 643, in urlopen     _stacktrace=sys.exc_info()[2])   file "/opt/eff.org/certbot/venv/share/python-wheels/urllib3-1.19.1-py2.py3-none-any.whl/urllib3/util/retry.py", line 315, in increment     total -= 1 typeerror: unsupported operand type(s) -=: 'retry' , 'int' =====================================================



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