From 0d9f14c848ec2877cbcd6f66c6f52a59ded22949 Mon Sep 17 00:00:00 2001
From: Alexandre Abadie <alexandre.abadie@inria.fr>
Date: Fri, 20 Nov 2015 17:50:40 +0100
Subject: [PATCH] make pyterm nicely fails if no port is available

---
 dist/tools/pyterm/pyterm | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/dist/tools/pyterm/pyterm b/dist/tools/pyterm/pyterm
index ba7b7e7daf..32ca955c4d 100755
--- a/dist/tools/pyterm/pyterm
+++ b/dist/tools/pyterm/pyterm
@@ -210,7 +210,12 @@ class SerCmd(cmd.Cmd):
         # otherwise go for the serial port
         elif self.port:
             self.logger.info("Connect to serial port %s" % self.port)
-            self.serial_connect()
+            try:
+                self.serial_connect()
+            except OSError as e:
+                self.logger.error("Cannot connect to serial port {}: {}"
+                                  .format(self.port, e.strerror))
+                sys.exit(1)
 
         # wait until connection is established and fire startup
         # commands to the node