.coveragerc .gitignore .travis.yml HACKING.rst LICENSE README.rst setup.cfg setup.py tox.ini src/backports/__init__.py src/backports/weakref.py src/backports.weakref.egg-info/PKG-INFO src/backports.weakref.egg-info/SOURCES.txt src/backports.weakref.egg-info/dependency_links.txt src/backports.weakref.egg-info/top_level.txt tests/test_weakref.py