From 2ec7b7367ec5554a824d1cb2018d954a20ce5b5f Mon Sep 17 00:00:00 2001
From: Keqiu Hu <khu@linkedin.com>
Date: Wed, 2 Dec 2020 12:08:30 -0800
Subject: [PATCH] [doc] update contributing doc (#12564)

Co-authored-by: Richard Liaw <rliaw@berkeley.edu>
---
 doc/source/getting-involved.rst | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/doc/source/getting-involved.rst b/doc/source/getting-involved.rst
index cd0cc50dc..20fe2b6bb 100644
--- a/doc/source/getting-involved.rst
+++ b/doc/source/getting-involved.rst
@@ -124,6 +124,8 @@ Alternatively, you can also run one specific C++ test. You can use:
 Lint and Formatting
 ~~~~~~~~~~~~~~~~~~~
 
+.. note:: Python 3.7 is recommended. You will run into flake8 `issues <https://github.com/ray-project/ray/pull/11588>`_ with Python 3.8.
+
 We also have tests for code formatting and linting that need to pass before merge.
 Install ``yapf==0.23, flake8, flake8-quotes``.