Removed wrong python versions in the contributing.md.
@@ -95,6 +95,6 @@ Before you submit a pull request, check that it meets these guidelines:
2. If the pull request adds functionality, the docs should be updated. Put
your new functionality into a function with a docstring, and add the
feature to the list in README.rst.
-3. The pull request should work for Python 2.7 and >3.3.
+3. The pull request should work for all Python versions listed in the ``setup.py``.
Check https://travis-ci.org/IDSIA/sacred/pull_requests
for active pull requests or run the ``tox`` command and make sure that the tests pass for all supported Python versions.
