Update requirements.txt (#592)

zeyiwen · mfeurer · commit 5f598a6194e3 · 2018-12-03T10:40:36.000+01:00
add "," for numpy versions for backward compatibility
diff --git a/requirements.txt b/requirements.txt
@@ -2,7 +2,7 @@ setuptools
 nose
 Cython
 
-numpy>=1.9.0<=1.14.5
+numpy>=1.9.0,<=1.14.5
 scipy>=0.14.1
 
 scikit-learn>=0.19,<0.20
