2020-10-04T09:40:26,031 Created temporary directory: /tmp/pip-ephem-wheel-cache-7hahzt_v
2020-10-04T09:40:26,033 Created temporary directory: /tmp/pip-req-tracker-avjodce1
2020-10-04T09:40:26,034 Initialized build tracking at /tmp/pip-req-tracker-avjodce1
2020-10-04T09:40:26,034 Created build tracker: /tmp/pip-req-tracker-avjodce1
2020-10-04T09:40:26,034 Entered build tracker: /tmp/pip-req-tracker-avjodce1
2020-10-04T09:40:26,035 Created temporary directory: /tmp/pip-wheel-q6oadfh4
2020-10-04T09:40:26,044 1 location(s) to search for versions of yfs:
2020-10-04T09:40:26,044 * https://pypi.org/simple/yfs/
2020-10-04T09:40:26,045 Fetching project page and analyzing links: https://pypi.org/simple/yfs/
2020-10-04T09:40:26,045 Getting page https://pypi.org/simple/yfs/
2020-10-04T09:40:26,047 Found index url https://pypi.org/simple
2020-10-04T09:40:26,138   Link requires a different Python (3.7.3 not in: '>=3.8,<4.0'): https://files.pythonhosted.org/packages/25/f7/6afcc31fb8f5666e02a503fbd33f5ba054bbb0771056e3e6389c413cab65/yfs-0.2.0-py3-none-any.whl#sha256=0536e9ab726cc564921831b5485c7c13259f55ea2494d5a6a4ec0c246433425c (from https://pypi.org/simple/yfs/) (requires-python:>=3.8,<4.0)
2020-10-04T09:40:26,139   Link requires a different Python (3.7.3 not in: '>=3.8,<4.0'): https://files.pythonhosted.org/packages/14/7b/c2c9b79e0d088445aa988f5ec92fe1af44ac942ed29270eacea249efbd2e/yfs-0.2.0.tar.gz#sha256=e880f782d30545bed8668e7135be18a902edf8f9763599ef48531bfd62b8cd7b (from https://pypi.org/simple/yfs/) (requires-python:>=3.8,<4.0)
2020-10-04T09:40:26,140 Given no hashes to check 0 links for project 'yfs': discarding no candidates
2020-10-04T09:40:26,140 ERROR: Could not find a version that satisfies the requirement yfs==0.2.0 (from versions: none)
2020-10-04T09:40:26,140 ERROR: No matching distribution found for yfs==0.2.0
2020-10-04T09:40:26,140 Exception information:
2020-10-04T09:40:26,140 Traceback (most recent call last):
2020-10-04T09:40:26,140   File "/usr/local/lib/python3.7/dist-packages/pip/_internal/cli/base_command.py", line 228, in _main
2020-10-04T09:40:26,140     status = self.run(options, args)
2020-10-04T09:40:26,140   File "/usr/local/lib/python3.7/dist-packages/pip/_internal/cli/req_command.py", line 182, in wrapper
2020-10-04T09:40:26,140     return func(self, options, args)
2020-10-04T09:40:26,140   File "/usr/local/lib/python3.7/dist-packages/pip/_internal/commands/wheel.py", line 156, in run
2020-10-04T09:40:26,140     reqs, check_supported_wheels=True
2020-10-04T09:40:26,140   File "/usr/local/lib/python3.7/dist-packages/pip/_internal/resolution/legacy/resolver.py", line 183, in resolve
2020-10-04T09:40:26,140     discovered_reqs.extend(self._resolve_one(requirement_set, req))
2020-10-04T09:40:26,140   File "/usr/local/lib/python3.7/dist-packages/pip/_internal/resolution/legacy/resolver.py", line 388, in _resolve_one
2020-10-04T09:40:26,140     abstract_dist = self._get_abstract_dist_for(req_to_install)
2020-10-04T09:40:26,140   File "/usr/local/lib/python3.7/dist-packages/pip/_internal/resolution/legacy/resolver.py", line 339, in _get_abstract_dist_for
2020-10-04T09:40:26,140     self._populate_link(req)
2020-10-04T09:40:26,140   File "/usr/local/lib/python3.7/dist-packages/pip/_internal/resolution/legacy/resolver.py", line 305, in _populate_link
2020-10-04T09:40:26,140     req.link = self._find_requirement_link(req)
2020-10-04T09:40:26,140   File "/usr/local/lib/python3.7/dist-packages/pip/_internal/resolution/legacy/resolver.py", line 270, in _find_requirement_link
2020-10-04T09:40:26,140     best_candidate = self.finder.find_requirement(req, upgrade)
2020-10-04T09:40:26,140   File "/usr/local/lib/python3.7/dist-packages/pip/_internal/index/package_finder.py", line 928, in find_requirement
2020-10-04T09:40:26,140     req)
2020-10-04T09:40:26,140 pip._internal.exceptions.DistributionNotFound: No matching distribution found for yfs==0.2.0
2020-10-04T09:40:26,145 Removed build tracker: '/tmp/pip-req-tracker-avjodce1'