From 33da3d65c76ac0e9ba66426f341a131e58dde428 Mon Sep 17 00:00:00 2001
From: Joe Rickerby <joerick@mac.com>
Date: Tue, 17 Mar 2020 20:28:53 +0000
Subject: [PATCH] Fix CUSTOM_COMPILE_COMMAND and add comment

---
 bin/update_constraints.py | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/bin/update_constraints.py b/bin/update_constraints.py
index c99452d8..50aaf515 100755
--- a/bin/update_constraints.py
+++ b/bin/update_constraints.py
@@ -10,7 +10,9 @@ import requests
 os.chdir(os.path.dirname(__file__))
 os.chdir('..')
 
-os.environ['CUSTOM_COMPILE_COMMAND'] = "bin/update_constraints"
+# CUSTOM_COMPILE_COMMAND is a pip-compile option that tells users how to
+# regenerate the constraints files
+os.environ['CUSTOM_COMPILE_COMMAND'] = "bin/update_constraints.py"
 subprocess.check_call([
     'pip-compile',
     '--allow-unsafe',