From f50bab028dcb6708def6902b00a371f7b63fd961 Mon Sep 17 00:00:00 2001
From: Neil Williams <neil@reddit.com>
Date: Sun, 8 Jul 2012 17:34:25 -0700
Subject: [PATCH] setup.py: Gracefully handle when Cython is not installed.

---
 r2/setup.py | 16 ++++++++++++++--
 1 file changed, 14 insertions(+), 2 deletions(-)

diff --git a/r2/setup.py b/r2/setup.py
index 12699b613..4d874948d 100644
--- a/r2/setup.py
+++ b/r2/setup.py
@@ -26,11 +26,23 @@ use_setuptools()
 
 from setuptools import find_packages
 from distutils.core import setup, Extension
-from Cython.Distutils import build_ext
 import os
 import fnmatch
 
-commands = {"build_ext": build_ext}
+
+commands = {}
+
+
+try:
+    from Cython.Distutils import build_ext
+except ImportError:
+    pass
+else:
+    commands.update({
+        "build_ext": build_ext
+    })
+
+
 try:
     from babel.messages import frontend as babel
     commands.update({