From d7781bc25c0586694010e23b33cc504c8dd07e77 Mon Sep 17 00:00:00 2001
From: Tim O'Donnell <timodonnell@gmail.com>
Date: Wed, 4 Sep 2019 14:44:32 -0400
Subject: [PATCH] fix help print

---
 mhcflurry/predict_command.py | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/mhcflurry/predict_command.py b/mhcflurry/predict_command.py
index 0a8e5c97..6d92a501 100644
--- a/mhcflurry/predict_command.py
+++ b/mhcflurry/predict_command.py
@@ -149,6 +149,10 @@ implementation_args.add_argument(
 
 
 def run(argv=sys.argv[1:]):
+    if not argv:
+        parser.print_help()
+        parser.exit(1)
+
     args = parser.parse_args(argv)
 
     set_keras_backend(backend=args.backend, num_threads=args.threads)
-- 
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