Integrating latest from github/staging

Integrating up through commit 5e1bdae

scripts/build/build_node/Platform/Mac/install-python.sh

@@ -0,0 +1,17 @@
+#!/bin/bash 
+set -euo pipefail
+
+# All or portions of this file Copyright (c) Amazon.com, Inc. or its affiliates or
+# its licensors.
+#
+# For complete copyright and license terms please see the LICENSE at the root of this
+# distribution (the "License"). All use of this software is governed by the License,
+# or, if provided, by the license below or the license accompanying this file. Do not
+# remove or modify any license notices. This file is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+
+PY3_VERSION="3.7.10"
+
+echo "Installing Python ${PY3_VERSION}"
+brew install python@${PY3_VERSION} || echo "Installation failed!"; exit 1
+cat ../common/requirements.txt | cut -f1 -d"#" | sed '/^\s*$/d' | xargs -n 1 pip3 install