From 7af2d3d6e2bf54e606c93887668fcc23d9355559 Mon Sep 17 00:00:00 2001
From: Tim Cuthbertson <tim@gfxmonk.net>
Date: Tue, 24 Jan 2017 21:08:42 +1100
Subject: [PATCH] buildPythonPackage: send pip output to stderr

---
 .../interpreters/python/build-python-package-setuptools.nix     | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/pkgs/development/interpreters/python/build-python-package-setuptools.nix b/pkgs/development/interpreters/python/build-python-package-setuptools.nix
index f077533ecfe..c6e21ff4fed 100644
--- a/pkgs/development/interpreters/python/build-python-package-setuptools.nix
+++ b/pkgs/development/interpreters/python/build-python-package-setuptools.nix
@@ -49,7 +49,7 @@ in attrs // {
       export PATH="$tmp_path/bin:$PATH"
       export PYTHONPATH="$tmp_path/${python.sitePackages}:$PYTHONPATH"
       mkdir -p $tmp_path/${python.sitePackages}
-      ${bootstrapped-pip}/bin/pip install -e . --prefix $tmp_path
+      ${bootstrapped-pip}/bin/pip install -e . --prefix $tmp_path >&2
     fi
     ${postShellHook}
   '';