2019-10-22T12:12:16 Created temporary directory: /tmp/pip-ephem-wheel-cache-gvl86en6
2019-10-22T12:12:16 Created temporary directory: /tmp/pip-req-tracker-rz6b8g5h
2019-10-22T12:12:16 Created requirements tracker '/tmp/pip-req-tracker-rz6b8g5h'
2019-10-22T12:12:16 Created temporary directory: /tmp/pip-wheel-hc_5bube
2019-10-22T12:12:16 Collecting QiwuGrader==1.6.7
2019-10-22T12:12:16   1 location(s) to search for versions of QiwuGrader:
2019-10-22T12:12:16   * https://pypi.org/simple/qiwugrader/
2019-10-22T12:12:16   Getting page https://pypi.org/simple/qiwugrader/
2019-10-22T12:12:16   Could not fetch URL https://pypi.org/simple/qiwugrader/: 404 Client Error: Not Found for url: https://pypi.org/simple/qiwugrader/ - skipping
2019-10-22T12:12:16   ERROR: Could not find a version that satisfies the requirement QiwuGrader==1.6.7 (from versions: none)
2019-10-22T12:12:16 Cleaning up...
2019-10-22T12:12:16 Removed build tracker '/tmp/pip-req-tracker-rz6b8g5h'
2019-10-22T12:12:16 ERROR: No matching distribution found for QiwuGrader==1.6.7
2019-10-22T12:12:16 Exception information:
2019-10-22T12:12:16 Traceback (most recent call last):
2019-10-22T12:12:16   File "/usr/local/lib/python3.7/dist-packages/pip/_internal/cli/base_command.py", line 178, in main
2019-10-22T12:12:16     status = self.run(options, args)
2019-10-22T12:12:16   File "/usr/local/lib/python3.7/dist-packages/pip/_internal/commands/wheel.py", line 164, in run
2019-10-22T12:12:16     resolver.resolve(requirement_set)
2019-10-22T12:12:16   File "/usr/local/lib/python3.7/dist-packages/pip/_internal/resolve.py", line 131, in resolve
2019-10-22T12:12:16     self._resolve_one(requirement_set, req)
2019-10-22T12:12:16   File "/usr/local/lib/python3.7/dist-packages/pip/_internal/resolve.py", line 294, in _resolve_one
2019-10-22T12:12:16     abstract_dist = self._get_abstract_dist_for(req_to_install)
2019-10-22T12:12:16   File "/usr/local/lib/python3.7/dist-packages/pip/_internal/resolve.py", line 242, in _get_abstract_dist_for
2019-10-22T12:12:16     self.require_hashes
2019-10-22T12:12:16   File "/usr/local/lib/python3.7/dist-packages/pip/_internal/operations/prepare.py", line 282, in prepare_linked_requirement
2019-10-22T12:12:16     req.populate_link(finder, upgrade_allowed, require_hashes)
2019-10-22T12:12:16   File "/usr/local/lib/python3.7/dist-packages/pip/_internal/req/req_install.py", line 198, in populate_link
2019-10-22T12:12:16     self.link = finder.find_requirement(self, upgrade)
2019-10-22T12:12:16   File "/usr/local/lib/python3.7/dist-packages/pip/_internal/index.py", line 792, in find_requirement
2019-10-22T12:12:16     'No matching distribution found for %s' % req
2019-10-22T12:12:16 pip._internal.exceptions.DistributionNotFound: No matching distribution found for QiwuGrader==1.6.7