2020-04-15T14:36:56,802 Created temporary directory: /tmp/pip-ephem-wheel-cache-vys6l9an
2020-04-15T14:36:56,806 Created temporary directory: /tmp/pip-req-tracker-xk1czboj
2020-04-15T14:36:56,807 Initialized build tracking at /tmp/pip-req-tracker-xk1czboj
2020-04-15T14:36:56,808 Created build tracker: /tmp/pip-req-tracker-xk1czboj
2020-04-15T14:36:56,808 Entered build tracker: /tmp/pip-req-tracker-xk1czboj
2020-04-15T14:36:56,809 Created temporary directory: /tmp/pip-wheel-3jyrbg1m
2020-04-15T14:36:56,815 1 location(s) to search for versions of backtest:
2020-04-15T14:36:56,815 * https://pypi.org/simple/backtest/
2020-04-15T14:36:56,815 Fetching project page and analyzing links: https://pypi.org/simple/backtest/
2020-04-15T14:36:56,816 Getting page https://pypi.org/simple/backtest/
2020-04-15T14:36:56,819 Found index url https://pypi.org/simple
2020-04-15T14:36:56,822 Getting credentials from keyring for https://pypi.org/simple
2020-04-15T14:36:56,823 Getting credentials from keyring for pypi.org
2020-04-15T14:36:57,030   Skipping link: No binaries permitted for backtest: https://files.pythonhosted.org/packages/c6/e8/8f017aa2e827ce63433ca24f3642243164d6720d171314f7f6360f67523a/backtest-0.7.1a0-py3-none-any.whl#sha256=7f4364df8d5246de9731998cabb79e6ae126e17ede1e6267bfec7a3c9e65e66e (from https://pypi.org/simple/backtest/) (requires-python:>=3.8)
2020-04-15T14:36:57,031   Link requires a different Python (3.7.3 not in: '>=3.8'): https://files.pythonhosted.org/packages/28/93/2b876ba17940cd8dd8f34538e78bbb6bbd7fe1c8a7c32f589dd906a409cd/backtest-0.7.1a0.tar.gz#sha256=48bdc7fbe509e460d204aaa792900ac57d1e957370264b144a39075d9310d428 (from https://pypi.org/simple/backtest/) (requires-python:>=3.8)
2020-04-15T14:36:57,038 Given no hashes to check 0 links for project 'backtest': discarding no candidates
2020-04-15T14:36:57,038 ERROR: Could not find a version that satisfies the requirement backtest==0.7.1a0 (from versions: none)
2020-04-15T14:36:57,039 Cleaning up...
2020-04-15T14:36:57,045 Removed build tracker: '/tmp/pip-req-tracker-xk1czboj'
2020-04-15T14:36:57,048 ERROR: No matching distribution found for backtest==0.7.1a0
2020-04-15T14:36:57,048 Exception information:
2020-04-15T14:36:57,048 Traceback (most recent call last):
2020-04-15T14:36:57,048   File "/usr/local/lib/python3.7/dist-packages/pip/_internal/cli/base_command.py", line 186, in _main
2020-04-15T14:36:57,048     status = self.run(options, args)
2020-04-15T14:36:57,048   File "/usr/local/lib/python3.7/dist-packages/pip/_internal/commands/wheel.py", line 161, in run
2020-04-15T14:36:57,048     resolver.resolve(requirement_set)
2020-04-15T14:36:57,048   File "/usr/local/lib/python3.7/dist-packages/pip/_internal/legacy_resolve.py", line 177, in resolve
2020-04-15T14:36:57,048     discovered_reqs.extend(self._resolve_one(requirement_set, req))
2020-04-15T14:36:57,048   File "/usr/local/lib/python3.7/dist-packages/pip/_internal/legacy_resolve.py", line 333, in _resolve_one
2020-04-15T14:36:57,048     abstract_dist = self._get_abstract_dist_for(req_to_install)
2020-04-15T14:36:57,048   File "/usr/local/lib/python3.7/dist-packages/pip/_internal/legacy_resolve.py", line 281, in _get_abstract_dist_for
2020-04-15T14:36:57,048     req.populate_link(self.finder, upgrade_allowed, require_hashes)
2020-04-15T14:36:57,048   File "/usr/local/lib/python3.7/dist-packages/pip/_internal/req/req_install.py", line 249, in populate_link
2020-04-15T14:36:57,048     self.link = finder.find_requirement(self, upgrade)
2020-04-15T14:36:57,048   File "/usr/local/lib/python3.7/dist-packages/pip/_internal/index/package_finder.py", line 927, in find_requirement
2020-04-15T14:36:57,048     'No matching distribution found for %s' % req
2020-04-15T14:36:57,048 pip._internal.exceptions.DistributionNotFound: No matching distribution found for backtest==0.7.1a0