From 79fd4797a252d7693ffc702bddd8306a033ea51d Mon Sep 17 00:00:00 2001
From: Ilya Konstantinov <ilya.konstantinov@gmail.com>
Date: Sun, 31 Mar 2019 13:50:57 -0700
Subject: [PATCH] requirements-dev: pin PyYAML fo Python 2.6 (#606)

pyyaml 5.1 deprecated Python 2.6 support: https://pyyaml.org/wiki/PyYAML
---
 requirements-dev.txt | 1 +
 1 file changed, 1 insertion(+)

diff --git a/requirements-dev.txt b/requirements-dev.txt
index eb4c01222..28f46f864 100644
--- a/requirements-dev.txt
+++ b/requirements-dev.txt
@@ -18,6 +18,7 @@ tox==2.1.1
 blinker==1.4
 flake8==2.4.1
 requests==2.7.0
+pyyaml<5  # for Python 2.6 support -- remove once we cease Python 2.6 support
 # Pinned because latest version requires Python 2.7+ (https://github.com/sphinx-doc/sphinx/issues/2919).
 sphinx==1.5.6
 sphinx-rtd-theme==0.1.8