2020-10-07T01:13:55,746 Created temporary directory: /tmp/pip-ephem-wheel-cache-_b62w6xo
2020-10-07T01:13:55,748 Created temporary directory: /tmp/pip-req-tracker-78fayd30
2020-10-07T01:13:55,749 Initialized build tracking at /tmp/pip-req-tracker-78fayd30
2020-10-07T01:13:55,749 Created build tracker: /tmp/pip-req-tracker-78fayd30
2020-10-07T01:13:55,749 Entered build tracker: /tmp/pip-req-tracker-78fayd30
2020-10-07T01:13:55,750 Created temporary directory: /tmp/pip-wheel-cu98fffg
2020-10-07T01:13:55,760 1 location(s) to search for versions of yfs:
2020-10-07T01:13:55,760 * https://pypi.org/simple/yfs/
2020-10-07T01:13:55,760 Fetching project page and analyzing links: https://pypi.org/simple/yfs/
2020-10-07T01:13:55,760 Getting page https://pypi.org/simple/yfs/
2020-10-07T01:13:55,762 Found index url https://pypi.org/simple
2020-10-07T01:13:55,854   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)
2020-10-07T01:13:55,855   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)
2020-10-07T01:13:55,856   Link requires a different Python (3.7.3 not in: '>=3.8,<4.0'): https://files.pythonhosted.org/packages/94/1c/f78f8d5e0d49471255cac69a38bcbd3bb0eced744382e9ca26ad068805f6/yfs-0.2.2-py3-none-any.whl#sha256=eba2fe17e35c8b3589aaa28d4876ef03b1ff4f2450a9636bb5e77315e408f9ca (from https://pypi.org/simple/yfs/) (requires-python:>=3.8,<4.0)
2020-10-07T01:13:55,856   Link requires a different Python (3.7.3 not in: '>=3.8,<4.0'): https://files.pythonhosted.org/packages/77/6d/2d69e7bb17268239fddd1e936809043d1cb6de7e62ecfd004fe2f1c65f88/yfs-0.2.2.tar.gz#sha256=631c1ff44f00cff5accaa4e86b8695ccedbbb758631da5716b1735b102aa8079 (from https://pypi.org/simple/yfs/) (requires-python:>=3.8,<4.0)
2020-10-07T01:13:55,857 Given no hashes to check 0 links for project 'yfs': discarding no candidates
2020-10-07T01:13:55,857 ERROR: Could not find a version that satisfies the requirement yfs==0.2.2 (from versions: none)
2020-10-07T01:13:55,857 ERROR: No matching distribution found for yfs==0.2.2
2020-10-07T01:13:55,858 Exception information:
2020-10-07T01:13:55,858 Traceback (most recent call last):
2020-10-07T01:13:55,858   File "/usr/local/lib/python3.7/dist-packages/pip/_internal/cli/base_command.py", line 228, in _main
2020-10-07T01:13:55,858     status = self.run(options, args)
2020-10-07T01:13:55,858   File "/usr/local/lib/python3.7/dist-packages/pip/_internal/cli/req_command.py", line 182, in wrapper
2020-10-07T01:13:55,858     return func(self, options, args)
2020-10-07T01:13:55,858   File "/usr/local/lib/python3.7/dist-packages/pip/_internal/commands/wheel.py", line 156, in run
2020-10-07T01:13:55,858     reqs, check_supported_wheels=True
2020-10-07T01:13:55,858   File "/usr/local/lib/python3.7/dist-packages/pip/_internal/resolution/legacy/resolver.py", line 183, in resolve
2020-10-07T01:13:55,858     discovered_reqs.extend(self._resolve_one(requirement_set, req))
2020-10-07T01:13:55,858   File "/usr/local/lib/python3.7/dist-packages/pip/_internal/resolution/legacy/resolver.py", line 388, in _resolve_one
2020-10-07T01:13:55,858     abstract_dist = self._get_abstract_dist_for(req_to_install)
2020-10-07T01:13:55,858   File "/usr/local/lib/python3.7/dist-packages/pip/_internal/resolution/legacy/resolver.py", line 339, in _get_abstract_dist_for
2020-10-07T01:13:55,858     self._populate_link(req)
2020-10-07T01:13:55,858   File "/usr/local/lib/python3.7/dist-packages/pip/_internal/resolution/legacy/resolver.py", line 305, in _populate_link
2020-10-07T01:13:55,858     req.link = self._find_requirement_link(req)
2020-10-07T01:13:55,858   File "/usr/local/lib/python3.7/dist-packages/pip/_internal/resolution/legacy/resolver.py", line 270, in _find_requirement_link
2020-10-07T01:13:55,858     best_candidate = self.finder.find_requirement(req, upgrade)
2020-10-07T01:13:55,858   File "/usr/local/lib/python3.7/dist-packages/pip/_internal/index/package_finder.py", line 928, in find_requirement
2020-10-07T01:13:55,858     req)
2020-10-07T01:13:55,858 pip._internal.exceptions.DistributionNotFound: No matching distribution found for yfs==0.2.2
2020-10-07T01:13:55,862 Removed build tracker: '/tmp/pip-req-tracker-78fayd30'