Created temporary directory: /tmp/pip-ephem-wheel-cache-p269e5hr
Created temporary directory: /tmp/pip-req-tracker-y_iasqhu
Created requirements tracker '/tmp/pip-req-tracker-y_iasqhu'
Created temporary directory: /tmp/pip-wheel-uplvw0wk
Collecting skiff-cli==0.1.10
  1 location(s) to search for versions of skiff-cli:
  * https://pypi.org/simple/skiff-cli/
  Getting page https://pypi.org/simple/skiff-cli/
  Analyzing links from page https://pypi.org/simple/skiff-cli/
  Could not find a version that satisfies the requirement skiff-cli==0.1.10 (from versions: )
Cleaning up...
Removed build tracker '/tmp/pip-req-tracker-y_iasqhu'
No matching distribution found for skiff-cli==0.1.10
Exception information:
Traceback (most recent call last):
  File "/usr/local/lib/python3.5/dist-packages/pip/_internal/cli/base_command.py", line 143, in main
    status = self.run(options, args)
  File "/usr/local/lib/python3.5/dist-packages/pip/_internal/commands/wheel.py", line 161, in run
    resolver.resolve(requirement_set)
  File "/usr/local/lib/python3.5/dist-packages/pip/_internal/resolve.py", line 102, in resolve
    self._resolve_one(requirement_set, req)
  File "/usr/local/lib/python3.5/dist-packages/pip/_internal/resolve.py", line 256, in _resolve_one
    abstract_dist = self._get_abstract_dist_for(req_to_install)
  File "/usr/local/lib/python3.5/dist-packages/pip/_internal/resolve.py", line 209, in _get_abstract_dist_for
    self.require_hashes
  File "/usr/local/lib/python3.5/dist-packages/pip/_internal/operations/prepare.py", line 218, in prepare_linked_requirement
    req.populate_link(finder, upgrade_allowed, require_hashes)
  File "/usr/local/lib/python3.5/dist-packages/pip/_internal/req/req_install.py", line 164, in populate_link
    self.link = finder.find_requirement(self, upgrade)
  File "/usr/local/lib/python3.5/dist-packages/pip/_internal/index.py", line 621, in find_requirement
    'No matching distribution found for %s' % req
pip._internal.exceptions.DistributionNotFound: No matching distribution found for skiff-cli==0.1.10