diff --git a/lime/submodular_pick.py b/lime/submodular_pick.py
index <HASH>..<HASH> 100644
--- a/lime/submodular_pick.py
+++ b/lime/submodular_pick.py
@@ -1,3 +1,6 @@
+import numpy as np
+import warnings
+
 class SubmodularPick(object):
         """Class for submodular pick
Update submodular_pick.py

add numpy and warnings