Fix use of __doc__ in setup.py for -OO mode

1 files changed, 1 insertions, 1 deletions

diff --git a/setup.py b/setup.py
index 8e5c3d04f..106a5fa13 100755
--- a/setup.py
+++ b/setup.py
@@ -15,7 +15,7 @@ basic linear algebra and random number generation.
 """
 from __future__ import division, print_function
 
-DOCLINES = __doc__.split("\n")
+DOCLINES = (__doc__ or '').split("\n")
 
 import os
 import sys