diff --git a/pandora/sequence/extract.py b/pandora/sequence/extract.py
index 4cd420323..761f1297c 100644
--- a/pandora/sequence/extract.py
+++ b/pandora/sequence/extract.py
@@ -3,8 +3,6 @@
 from __future__ import division
 import Image
 import os
-import numpy
-import math
 
 ZONE_INDEX = []
 for pixel_index in range(64):