From 7a6e598f872ad00a6dbde04616a972cdf4d788e3 Mon Sep 17 00:00:00 2001
From: "W. Trevor King" <wking@drexel.edu>
Date: Fri, 16 Jul 2010 01:17:14 -0400
Subject: [PATCH] Raise a more helpful error message is a directory does not
 exist

---
 dirtag/__init__.py | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/dirtag/__init__.py b/dirtag/__init__.py
index b8f49c7..406c286 100644
--- a/dirtag/__init__.py
+++ b/dirtag/__init__.py
@@ -71,6 +71,8 @@ def dir_tree(root_dir):
     x|a2.dat
     x|b3.dat
     """
+    if not os.path.exists(root_dir):
+        raise ValueError(root_dir)
     trees = {}
     for dirpath,dirnames,filenames in os.walk(root_dir, followlinks=True):
         t = trees.get(
-- 
2.26.2