From c7ccaed43ac7752c4ca361abb04fcb4e9ebdb069 Mon Sep 17 00:00:00 2001
From: Lee Kamentsky <lkaments@mit.edu>
Date: Mon, 29 Jul 2019 09:45:10 -0400
Subject: [PATCH] Explicitly use -3 switch for Cython

---
 setup.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/setup.py b/setup.py
index 6435840..d4ba49a 100644
--- a/setup.py
+++ b/setup.py
@@ -54,7 +54,7 @@ def build_cython():
         pyx for pyx, c in zip(pyx_filenames, c_filenames)
         if os.path.exists(pyx) and needs_compilation(c, pyx)]
     if len(nc_pyx_filenames) > 0:
-        cython_cmd = [sys.executable, '-m', 'cython']
+        cython_cmd = [sys.executable, '-m', 'cython', "-3"]
         cmd = cython_cmd + nc_pyx_filenames
         env = dict(os.environ)
         env['PYTHONPATH'] = os.pathsep.join(sys.path)