A package (https://github.com/sixty-north/cosmic-ray/) that relies on this module is failing CI testing for the nightly build of Python because of stevedore. The error message received is:
Searching for stevedore
Reading https://pypi.python.org/simple/stevedore/
Downloading https://pypi.python.org/packages/98/33/2c8003cb4294d1729bfb6cdf4bbfe74b968403b2df0a80ee876bebf20488/stevedore-1.17.1.tar.gz#md5=ade3b7b9992419addf105ea66006e038
Best match: stevedore 1.17.1
Processing stevedore-1.17.1.tar.gz
Writing /tmp/easy_install-2ne0khtp/stevedore-1.17.1/setup.cfg
Running stevedore-1.17.1/setup.py -q bdist_egg --dist-dir /tmp/easy_install-2ne0khtp/stevedore-1.17.1/egg-dist-tmp-o3u74ceq
/home/travis/virtualenv/python3.6-dev/lib/python3.6/site-packages/pbr/core.py:135: UserWarning: Unknown distribution option: 'install_requires'
warnings.warn(msg)
/home/travis/virtualenv/python3.6-dev/lib/python3.6/site-packages/pbr/core.py:135: UserWarning: Unknown distribution option: 'packages'
warnings.warn(msg)
/home/travis/virtualenv/python3.6-dev/lib/python3.6/site-packages/pbr/core.py:135: UserWarning: Unknown distribution option: 'tests_require'
warnings.warn(msg)
/home/travis/virtualenv/python3.6-dev/lib/python3.6/site-packages/pbr/core.py:135: UserWarning: Unknown distribution option: 'include_package_data'
warnings.warn(msg)
/home/travis/virtualenv/python3.6-dev/lib/python3.6/site-packages/pbr/core.py:135: UserWarning: Unknown distribution option: 'extras_require'
warnings.warn(msg)
/home/travis/virtualenv/python3.6-dev/lib/python3.6/site-packages/pbr/core.py:135: UserWarning: Unknown distribution option: 'zip_safe'
warnings.warn(msg)
/home/travis/virtualenv/python3.6-dev/lib/python3.6/site-packages/pbr/core.py:135: UserWarning: Unknown distribution option: 'entry_points'
warnings.warn(msg)
warning: install_lib: 'build/lib' does not exist -- no Python modules to install
zip_safe flag not set; analyzing archive contents...
Moving stevedore-1.17.1-py3.6.egg to /home/travis/virtualenv/python3.6-dev/lib/python3.6/site-packages
Adding stevedore 1.17.1 to easy-install.pth file
Installed /home/travis/virtualenv/python3.6-dev/lib/python3.6/site-packages/stevedore-1.17.1-py3.6.egg
It sounds like the environment where stevedore was being installed had an old setuptools. If this is still a problem please reopen this bug with more information about versions of the dependencies of stevedore.