1 files changed, 4 insertions, 1 deletions

diff --git a/util.py b/util.py
index fdedaa4..b092858 100644
--- a/util.py
+++ b/util.py
@@ -1,8 +1,11 @@
 import numpy as np
 
 def load_csv_file(fname, *args, **kargs):
-    return np.genfromtxt(open(fname), delimiter=",", comments="#",
+    f = open(fname)
+    data = np.genfromtxt(f, delimiter=",", comments="#",
                          *args, **kargs)
+    f.close() # don't leak file handles
+    return data
 
 def select(keep, rows):
     ok_rows = np.zeros(len(rows), dtype=bool)