From 886ef8464d73288cd2b7984e08d20757338ac908 Mon Sep 17 00:00:00 2001
From: Chris Lenk <clenk@mitre.org>
Date: Thu, 29 Aug 2019 16:14:40 -0400
Subject: [PATCH] Add contributing note about isort

---
 docs/contributing.rst | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/docs/contributing.rst b/docs/contributing.rst
index 9aa2f0e..20cab3a 100644
--- a/docs/contributing.rst
+++ b/docs/contributing.rst
@@ -109,3 +109,11 @@ then look at the resulting report in ``htmlcov/index.html``.
 All commits pushed to the ``master`` branch or submitted as a pull request are
 tested with `Travis-CI <https://travis-ci.org/oasis-open/cti-python-stix2>`_
 automatically.
+
+Adding a dependency
+-------------------
+
+One of the pre-commit hooks we use in our develoment environment enforces a
+consistent ordering to imports. If you need to add a new library as a dependency
+please add it to the `known_third_party` section of `.isort.cfg` to make sure
+the import is sorted correctly.