Dependabot can't resolve your Python dependency files

[dependabot-preview]

Dependabot can't resolve your Python dependency files.

As a result, Dependabot couldn't update your dependencies.

The error Dependabot encountered was:

Could not find a version that satisfies the requirement kombu==4.2.2 (from versions: 0.1.0, 0.2.0, 0.9.0, 0.9.1, 0.9.2, 0.9.4, 0.9.5, 0.9.6, 0.9.7, 1.0.0b1, 1.0.0b2, 1.0.0b3, 1.0.0b4, 1.0.0rc1, 1.0.0rc2, 1.0.0rc3, 1.0.0rc4, 1.0.0, 1.0.1, 1.0.2, 1.0.3, 1.0.4, 1.0.5, 1.0.6, 1.0.7, 1.1.0, 1.1.1, 1.1.2, 1.1.3, 1.1.4, 1.1.5, 1.1.6, 1.2.0, 1.2.1, 1.3.0, 1.3.1, 1.3.2, 1.3.3, 1.3.4, 1.3.5, 1.4.0, 1.4.1, 1.4.2, 1.4.3, 1.5.0, 1.5.1, 2.0.0, 2.1.0, 2.1.1, 2.1.2, 2.1.3, 2.1.4, 2.1.5, 2.1.6, 2.1.7, 2.1.8, 2.2.0, 2.2.1, 2.2.2, 2.2.3, 2.2.4, 2.2.5, 2.2.6, 2.3.0, 2.3.1, 2.3.2, 2.4.0, 2.4.1, 2.4.2, 2.4.3, 2.4.4, 2.4.5, 2.4.6, 2.4.7, 2.4.8, 2.4.9, 2.4.10, 2.5.0, 2.5.1, 2.5.2, 2.5.3, 2.5.4, 2.5.5, 2.5.6, 2.5.7, 2.5.8, 2.5.9, 2.5.10, 2.5.11, 2.5.12, 2.5.13, 2.5.14, 2.5.15, 2.5.16, 3.0.0, 3.0.1, 3.0.2, 3.0.3, 3.0.4, 3.0.5, 3.0.6, 3.0.7, 3.0.8, 3.0.9, 3.0.10, 3.0.11, 3.0.12, 3.0.13, 3.0.14, 3.0.15, 3.0.16, 3.0.17, 3.0.18, 3.0.19, 3.0.20, 3.0.21, 3.0.22, 3.0.23, 3.0.24, 3.0.25, 3.0.26, 3.0.27, 3.0.28, 3.0.29, 3.0.30, 3.0.31, 3.0.32, 3.0.33, 3.0.34, 3.0.35, 3.0.36, 3.0.37, 4.0.0rc3, 4.0.0rc4, 4.0.0rc5, 4.0.0rc6, 4.0.0, 4.0.1, 4.0.2, 4.1.0, 4.2.0, 4.2.1, 4.2.2.post1)
Traceback (most recent call last):
  File "/usr/local/.pyenv/versions/3.6.8/bin/pip-compile", line 11, in <module>
    sys.exit(cli())
  File "/usr/local/.pyenv/versions/3.6.8/lib/python3.6/site-packages/click/core.py", line 764, in __call__
    return self.main(*args, **kwargs)
  File "/usr/local/.pyenv/versions/3.6.8/lib/python3.6/site-packages/click/core.py", line 717, in main
    rv = self.invoke(ctx)
  File "/usr/local/.pyenv/versions/3.6.8/lib/python3.6/site-packages/click/core.py", line 956, in invoke
    return ctx.invoke(self.callback, **ctx.params)
  File "/usr/local/.pyenv/versions/3.6.8/lib/python3.6/site-packages/click/core.py", line 555, in invoke
    return callback(*args, **kwargs)
  File "/usr/local/.pyenv/versions/3.6.8/lib/python3.6/site-packages/piptools/scripts/compile.py", line 191, in cli
    results = resolver.resolve(max_rounds=max_rounds)
  File "/usr/local/.pyenv/versions/3.6.8/lib/python3.6/site-packages/piptools/resolver.py", line 101, in resolve
    has_changed, best_matches = self._resolve_one_round()
  File "/usr/local/.pyenv/versions/3.6.8/lib/python3.6/site-packages/piptools/resolver.py", line 198, in _resolve_one_round
    for dep in self._iter_dependencies(best_match):
  File "/usr/local/.pyenv/versions/3.6.8/lib/python3.6/site-packages/piptools/resolver.py", line 284, in _iter_dependencies
    dependencies = self.repository.get_dependencies(ireq)
  File "/usr/local/.pyenv/versions/3.6.8/lib/python3.6/site-packages/piptools/repositories/local.py", line 65, in get_dependencies
    return self.repository.get_dependencies(ireq)
  File "/usr/local/.pyenv/versions/3.6.8/lib/python3.6/site-packages/piptools/repositories/pypi.py", line 217, in get_dependencies
    self._dependencies_cache[ireq] = self.resolve_reqs(download_dir, ireq, wheel_cache)
  File "/usr/local/.pyenv/versions/3.6.8/lib/python3.6/site-packages/piptools/repositories/pypi.py", line 183, in resolve_reqs
    results = resolver._resolve_one(reqset, ireq)
  File "/usr/local/.pyenv/versions/3.6.8/lib/python3.6/site-packages/pip/_internal/resolve.py", line 256, in _resolve_one
    abstract_dist = self._get_abstract_dist_for(req_to_install)
  File "/usr/local/.pyenv/versions/3.6.8/lib/python3.6/site-packages/pip/_internal/resolve.py", line 209, in _get_abstract_dist_for
    self.require_hashes
  File "/usr/local/.pyenv/versions/3.6.8/lib/python3.6/site-packages/pip/_internal/operations/prepare.py", line 218, in prepare_linked_requirement
    req.populate_link(finder, upgrade_allowed, require_hashes)
  File "/usr/local/.pyenv/versions/3.6.8/lib/python3.6/site-packages/pip/_internal/req/req_install.py", line 164, in populate_link
    self.link = finder.find_requirement(self, upgrade)
  File "/usr/local/.pyenv/versions/3.6.8/lib/python3.6/site-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 kombu==4.2.2

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