From df866e40a914d08f571b2f6aa10e1015ce940874 Mon Sep 17 00:00:00 2001
From: Robert Gleeson <rob@flowof.info>
Date: Sat, 1 Feb 2014 01:21:38 +0100
Subject: [PATCH] update Pry::REPL to not assume Readline is loaded.

---
 lib/pry/repl.rb | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/lib/pry/repl.rb b/lib/pry/repl.rb
index fa1caf04..0fa8d753 100644
--- a/lib/pry/repl.rb
+++ b/lib/pry/repl.rb
@@ -179,9 +179,9 @@ class Pry
           end
         end
 
-        if input == Readline
+        if defined?(Readline) and input == Readline
           if !$stdout.tty? && $stdin.tty? && !Pry::Helpers::BaseHelpers.windows?
-            Readline.output = File.open('/dev/tty', 'w')
+            _pry_.input.output = File.open('/dev/tty', 'w')
           end
           input_readline(current_prompt, false) # false since we'll add it manually
         elsif defined? Coolline and input.is_a? Coolline