From 04c42f289748020561501b1df5f90ac65d223efe Mon Sep 17 00:00:00 2001
From: Rohit <merohitmalik@gmail.com>
Date: Sun, 23 Jul 2017 17:28:01 +0530
Subject: [PATCH] Update serial_scanner.py

---
 serial_scanner.py | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/serial_scanner.py b/serial_scanner.py
index 6e8b7d1f4ad..c97416b7f50 100644
--- a/serial_scanner.py
+++ b/serial_scanner.py
@@ -40,7 +40,11 @@ def ListAvailablePorts():
     else:
         print '''This method was developed only for linux and windows
                 the current platform isn't recognised'''
-    return AvailablePorts
+    if len(AvailablePorts) == 0:
+        print("NO port in use")
+        return 0
+    else:
+        return AvailablePorts
 
 
 #  EXAMPLE OF HOW IT WORKS