2020-04-05T15:06:30,361 Created temporary directory: /tmp/pip-ephem-wheel-cache-gphhm5k2
2020-04-05T15:06:30,365 Created temporary directory: /tmp/pip-req-tracker-qug4d6kc
2020-04-05T15:06:30,366 Initialized build tracking at /tmp/pip-req-tracker-qug4d6kc
2020-04-05T15:06:30,367 Created build tracker: /tmp/pip-req-tracker-qug4d6kc
2020-04-05T15:06:30,367 Entered build tracker: /tmp/pip-req-tracker-qug4d6kc
2020-04-05T15:06:30,368 Created temporary directory: /tmp/pip-wheel-wau6sxjx
2020-04-05T15:06:30,373 1 location(s) to search for versions of unpaywall:
2020-04-05T15:06:30,373 * https://pypi.org/simple/unpaywall/
2020-04-05T15:06:30,374 Fetching project page and analyzing links: https://pypi.org/simple/unpaywall/
2020-04-05T15:06:30,375 Getting page https://pypi.org/simple/unpaywall/
2020-04-05T15:06:30,377 Found index url https://pypi.org/simple
2020-04-05T15:06:30,380 Getting credentials from keyring for https://pypi.org/simple
2020-04-05T15:06:30,381 Getting credentials from keyring for pypi.org
2020-04-05T15:06:30,673 Given no hashes to check 0 links for project 'unpaywall': discarding no candidates
2020-04-05T15:06:30,673 ERROR: Could not find a version that satisfies the requirement unpaywall==0.0.1 (from versions: none)
2020-04-05T15:06:30,674 Cleaning up...
2020-04-05T15:06:30,679 Removed build tracker: '/tmp/pip-req-tracker-qug4d6kc'
2020-04-05T15:06:30,682 ERROR: No matching distribution found for unpaywall==0.0.1
2020-04-05T15:06:30,683 Exception information:
2020-04-05T15:06:30,683 Traceback (most recent call last):
2020-04-05T15:06:30,683   File "/usr/local/lib/python3.7/dist-packages/pip/_internal/cli/base_command.py", line 186, in _main
2020-04-05T15:06:30,683     status = self.run(options, args)
2020-04-05T15:06:30,683   File "/usr/local/lib/python3.7/dist-packages/pip/_internal/commands/wheel.py", line 161, in run
2020-04-05T15:06:30,683     resolver.resolve(requirement_set)
2020-04-05T15:06:30,683   File "/usr/local/lib/python3.7/dist-packages/pip/_internal/legacy_resolve.py", line 177, in resolve
2020-04-05T15:06:30,683     discovered_reqs.extend(self._resolve_one(requirement_set, req))
2020-04-05T15:06:30,683   File "/usr/local/lib/python3.7/dist-packages/pip/_internal/legacy_resolve.py", line 333, in _resolve_one
2020-04-05T15:06:30,683     abstract_dist = self._get_abstract_dist_for(req_to_install)
2020-04-05T15:06:30,683   File "/usr/local/lib/python3.7/dist-packages/pip/_internal/legacy_resolve.py", line 281, in _get_abstract_dist_for
2020-04-05T15:06:30,683     req.populate_link(self.finder, upgrade_allowed, require_hashes)
2020-04-05T15:06:30,683   File "/usr/local/lib/python3.7/dist-packages/pip/_internal/req/req_install.py", line 249, in populate_link
2020-04-05T15:06:30,683     self.link = finder.find_requirement(self, upgrade)
2020-04-05T15:06:30,683   File "/usr/local/lib/python3.7/dist-packages/pip/_internal/index/package_finder.py", line 927, in find_requirement
2020-04-05T15:06:30,683     'No matching distribution found for %s' % req
2020-04-05T15:06:30,683 pip._internal.exceptions.DistributionNotFound: No matching distribution found for unpaywall==0.0.1