From c65e34b283545df606c730ad59d91dc02ee46905 Mon Sep 17 00:00:00 2001
From: Martin Brodbeck <martin@brodbeck-online.de>
Date: Tue, 30 Jan 2018 12:03:25 +0100
Subject: [PATCH] Handle case when no argument has been specified.

---
 radiorec.py | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/radiorec.py b/radiorec.py
index e2f6b0e..fb24e3c 100755
--- a/radiorec.py
+++ b/radiorec.py
@@ -154,6 +154,10 @@ def main():
     parser_list = subparsers.add_parser('list', help='List all known stations')
     parser_list.set_defaults(func=list)
 
+    if not len(sys.argv) > 1:
+        print('Error: No argument specified.\n')
+        parser.print_help()
+        sys.exit(1)
     args = parser.parse_args()
     args.func(args)