From 0faf8959dbc4bd2175683939305e1926590d36ed Mon Sep 17 00:00:00 2001
From: Todd Leonhardt <todd.leonhardt@gmail.com>
Date: Tue, 20 Mar 2018 16:25:08 -0400
Subject: Added an extra check to ppaged() to make sure cmd2 app is running in
 a real terminal before attempting to use a pager

---
 examples/paged_output.py | 4 ++++
 1 file changed, 4 insertions(+)

(limited to 'examples/paged_output.py')

diff --git a/examples/paged_output.py b/examples/paged_output.py
index 171c1b3e..9005a4da 100755
--- a/examples/paged_output.py
+++ b/examples/paged_output.py
@@ -17,6 +17,10 @@ class PagedOutput(cmd2.Cmd):
     @with_argument_list
     def do_page_file(self, args):
         """Read in a text file and display its output in a pager."""
+        if not args:
+            self.perror('page_file requires a path to a file as an argument', traceback_war=False)
+            return
+
         with open(args[0], 'r') as f:
             text = f.read()
         self.ppaged(text)
-- 
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