From c2533da942b2ffcf1d3f300c571c690d28dcbc28 Mon Sep 17 00:00:00 2001
From: Arturo Hernandez <ahernandez@agetic.gob.bo>
Date: Thu, 13 Sep 2018 10:30:34 -0400
Subject: [PATCH] don't read empty fingers

---
 zk/base.py | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/zk/base.py b/zk/base.py
index 08c20e3..03bb3b9 100644
--- a/zk/base.py
+++ b/zk/base.py
@@ -972,6 +972,9 @@ class ZK(object):
 
     def get_templates(self):
         """ return array of all fingers """
+        self.read_sizes() # last update
+        if self.fingers == 0: #lazy
+            return []
         templates = []
         templatedata, size = self.read_with_buffer(const.CMD_DB_RRQ, const.FCT_FINGERTMP)
         if size < 4: