Add note about mercurial
Some tests need mercurial to pass.
Closes
@@ -17,6 +17,8 @@ environments by running::
tox
+.. note:: You need `Mercurial`_ installed to pass some tests.
+
To target a specific environment::
tox -e py27
@@ -35,6 +37,7 @@ target a single environment to limit the test suite::
Test documentation compilation with Sphinx.
.. _`Tox`: http://tox.readthedocs.io/en/latest/index.html
+.. _`Mercurial`: https://www.mercurial-scm.org/
.. _`Prospector`: http://prospector.readthedocs.io/en/master/
.. _`pylint`: http://docs.pylint.org/
.. _`pyflakes`: https://github.com/pyflakes/pyflakes
