Python 2.7_with_system_site_packages in Trusty build environment of Travis is failing with the following error:
$ if [[ "$USE_NOSE" == "1" ]]; then nosetests --version ; if [[ "$SITE_ONLY" == "1" ]]; then python setup.py nosetests --tests tests --verbosity=2 -a "family=$FAMILY,code=$LANGUAGE" --with-trim --with-coverage --cover-package=. ; else python setup.py nosetests --tests tests --verbosity=2 --with-trim --with-coverage --cover-package=. ; fi ; elif [[ "$USE_PYTEST" == "1" ]]; then if [[ "$SITE_ONLY" == "1" ]]; then python setup.py pytest --addopts="-vvv -s --timeout=$TEST_TIMEOUT --cov=. -a \"family=='$FAMILY' and code=='$LANGUAGE'\"" ; else python setup.py pytest --addopts="-vvv -s --timeout=$TEST_TIMEOUT --cov=." ; fi else coverage run setup.py test ; fi /home/travis/virtualenv/python2.7_with_system_site_packages/local/lib/python2.7/site-packages/setuptools/dist.py:285: UserWarning: Normalizing '3.0-dev' to '3.0.dev0' normalized_version, running test Searching for idna>=2.0.0 Reading https://pypi.python.org/simple/idna/ Best match: idna 2.4 Downloading https://pypi.python.org/packages/a3/06/40cb383eaea6e97047666db51abc2f2b32046f3e2a6e5ab2b946630f6062/idna-2.4.tar.gz#md5=b27328914784bf3e4f6fae16f4b75ba9 Processing idna-2.4.tar.gz Writing /tmp/easy_install-vjRK2N/idna-2.4/setup.cfg Running idna-2.4/setup.py -q bdist_egg --dist-dir /tmp/easy_install-vjRK2N/idna-2.4/egg-dist-tmp-ehjsp_ warning: no previously-included files matching '*.pyc' found under directory 'tools' warning: no previously-included files matching '*.pyc' found under directory 'tests' zip_safe flag not set; analyzing archive contents... Moving idna-2.4-py2.7.egg to /home/travis/build/wikimedia/pywikibot-core/.eggs Installed /home/travis/build/wikimedia/pywikibot-core/.eggs/idna-2.4-py2.7.egg Traceback (most recent call last): File "setup.py", line 224, in <module> use_2to3=False File "/usr/lib/python2.7/distutils/core.py", line 151, in setup dist.run_commands() File "/usr/lib/python2.7/distutils/dist.py", line 953, in run_commands self.run_command(cmd) File "/usr/lib/python2.7/distutils/dist.py", line 972, in run_command cmd_obj.run() File "/home/travis/virtualenv/python2.7_with_system_site_packages/local/lib/python2.7/site-packages/setuptools/command/test.py", line 132, in run self.distribution.install_requires) File "/home/travis/virtualenv/python2.7_with_system_site_packages/local/lib/python2.7/site-packages/setuptools/dist.py", line 313, in fetch_build_eggs replace_conflicting=True, File "/home/travis/virtualenv/python2.7_with_system_site_packages/local/lib/python2.7/site-packages/pkg_resources/__init__.py", line 836, in resolve dist = best[req.key] = env.best_match(req, ws, installer) File "/home/travis/virtualenv/python2.7_with_system_site_packages/local/lib/python2.7/site-packages/pkg_resources/__init__.py", line 1074, in best_match dist = working_set.find(req) File "/home/travis/virtualenv/python2.7_with_system_site_packages/local/lib/python2.7/site-packages/pkg_resources/__init__.py", line 711, in find raise VersionConflict(dist, req) pkg_resources.VersionConflict: (pyOpenSSL 0.13 (/usr/lib/python2.7/dist-packages), Requirement.parse('pyOpenSSL>=0.14'))
https://travis-ci.org/wikimedia/pywikibot-core/jobs/208382609#L731