From d067dbee46db5342c31cbb07a3632d6c8fbff5d2 Mon Sep 17 00:00:00 2001
From: Ryan Kophs <rkophs@hubspot.com>
Date: Fri, 24 Mar 2017 11:40:03 -0400
Subject: [PATCH] Fix case that astack not allowing input file.

---
 astack.py | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/astack.py b/astack.py
index 341b561..2996efc 100755
--- a/astack.py
+++ b/astack.py
@@ -31,9 +31,9 @@ def main():
     if options.pretty:
         USE_COLOR = True
 
-    if not options.pid:
+    if not (options.pid or options.input):
         sys.argv = [sys.argv[0], '--help']
-        print "No process specified - use -p <pid> or -n <pattern>"
+        print "No process or input file specified - use -p <pid> or -n <pattern> or -i <filename>"
         return parse_args()
 
     if options.raw: