2019-07-01T16:40:48 Created temporary directory: /tmp/pip-ephem-wheel-cache-skzo5g22
2019-07-01T16:40:48 Created temporary directory: /tmp/pip-req-tracker-k866dekr
2019-07-01T16:40:48 Created requirements tracker '/tmp/pip-req-tracker-k866dekr'
2019-07-01T16:40:48 Created temporary directory: /tmp/pip-wheel-l9kavajs
2019-07-01T16:40:48 Collecting utf8==0.0.1
2019-07-01T16:40:48   1 location(s) to search for versions of utf8:
2019-07-01T16:40:48   * https://pypi.org/simple/utf8/
2019-07-01T16:40:48   Getting page https://pypi.org/simple/utf8/
2019-07-01T16:40:48   Analyzing links from page https://pypi.org/simple/utf8/
2019-07-01T16:40:49   ERROR: Could not find a version that satisfies the requirement utf8==0.0.1 (from versions: none)
2019-07-01T16:40:49 Cleaning up...
2019-07-01T16:40:49 Removed build tracker '/tmp/pip-req-tracker-k866dekr'
2019-07-01T16:40:49 ERROR: No matching distribution found for utf8==0.0.1
2019-07-01T16:40:49 Exception information:
2019-07-01T16:40:49 Traceback (most recent call last):
2019-07-01T16:40:49   File "/usr/local/lib/python3.7/dist-packages/pip/_internal/cli/base_command.py", line 178, in main
2019-07-01T16:40:49     status = self.run(options, args)
2019-07-01T16:40:49   File "/usr/local/lib/python3.7/dist-packages/pip/_internal/commands/wheel.py", line 164, in run
2019-07-01T16:40:49     resolver.resolve(requirement_set)
2019-07-01T16:40:49   File "/usr/local/lib/python3.7/dist-packages/pip/_internal/resolve.py", line 131, in resolve
2019-07-01T16:40:49     self._resolve_one(requirement_set, req)
2019-07-01T16:40:49   File "/usr/local/lib/python3.7/dist-packages/pip/_internal/resolve.py", line 294, in _resolve_one
2019-07-01T16:40:49     abstract_dist = self._get_abstract_dist_for(req_to_install)
2019-07-01T16:40:49   File "/usr/local/lib/python3.7/dist-packages/pip/_internal/resolve.py", line 242, in _get_abstract_dist_for
2019-07-01T16:40:49     self.require_hashes
2019-07-01T16:40:49   File "/usr/local/lib/python3.7/dist-packages/pip/_internal/operations/prepare.py", line 282, in prepare_linked_requirement
2019-07-01T16:40:49     req.populate_link(finder, upgrade_allowed, require_hashes)
2019-07-01T16:40:49   File "/usr/local/lib/python3.7/dist-packages/pip/_internal/req/req_install.py", line 198, in populate_link
2019-07-01T16:40:49     self.link = finder.find_requirement(self, upgrade)
2019-07-01T16:40:49   File "/usr/local/lib/python3.7/dist-packages/pip/_internal/index.py", line 792, in find_requirement
2019-07-01T16:40:49     'No matching distribution found for %s' % req
2019-07-01T16:40:49 pip._internal.exceptions.DistributionNotFound: No matching distribution found for utf8==0.0.1