From a41ddf6bd121cfe3d416014450a4bd70a6fb7a94 Mon Sep 17 00:00:00 2001
From: Kenneth Reitz <me@kennethreitz.org>
Date: Mon, 19 Dec 2016 16:48:30 -0500
Subject: [PATCH] skip set if no path-links are found

---
 bin/steps/pip-install | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/bin/steps/pip-install b/bin/steps/pip-install
index 80435211..d1e0deb6 100755
--- a/bin/steps/pip-install
+++ b/bin/steps/pip-install
@@ -22,8 +22,9 @@ cp requirements.txt .heroku/python/requirements-declared.txt
 
 # Replace egg-links with new paths for /app.
 # find .heroku/python/lib/python*/site-packages/ -name "*.egg-link" -print0 | xargs -0 cat
-find .heroku/python/lib/python*/site-packages/ -name "*.egg-link" -print0 | xargs -0 -n 1 sed -i -e "s#$(pwd)/#./app/#"
-find .heroku/python/lib/python*/site-packages/ -name "easy-install.pth" -print0 | xargs -0 -n 1 sed -i -e "s#$(pwd)/#/app/#"
+
+find .heroku/python/lib/python*/site-packages/ -name "*.egg-link" -print0 | xargs -r -0 -n 1 sed -i -e "s#$(pwd)/#./app/#"
+find .heroku/python/lib/python*/site-packages/ -name "easy-install.pth" -print0 | xargs -r -0 -n 1 sed -i -e "s#$(pwd)/#/app/#"
 
 [ ! "$FRESH_PYTHON" ] && bpwatch stop pip_install
 [ "$FRESH_PYTHON" ] && bpwatch stop pip_install_first
-- 
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