From df5cb29bc582c0a32803a8e4317bf41ef4e27aae Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Mattias=20Andr=C3=A9e?= <maandree@operamail.com>
Date: Sat, 22 Dec 2012 00:27:00 +0100
Subject: [PATCH] bug fix: failed if a environment variable was not defined
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Signed-off-by: Mattias Andrée <maandree@operamail.com>
---
 ponysay.py | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/ponysay.py b/ponysay.py
index c4651c9b..e8812f31 100755
--- a/ponysay.py
+++ b/ponysay.py
@@ -198,7 +198,11 @@ class Ponysay():
         
         
         def share(file):
-            return [(parsefile(item) + file) for item in [
+            def cat(a, b):
+                if a is None:
+                    return None
+                return a + b
+            return [cat(parsefile(item), file) for item in [
                     '$XDG_DATA_HOME/ponysay/',
                     '$HOME/.local/share/ponysay/',
                     '/usr/share/ponysay/',