From: W. Trevor King <wking@drexel.edu>
Date: Fri, 16 Jul 2010 05:17:14 +0000 (-0400)
Subject: Raise a more helpful error message is a directory does not exist
X-Git-Url: http://git.tremily.us/?a=commitdiff_plain;h=7a6e598f872ad00a6dbde04616a972cdf4d788e3;p=dirtag.git

Raise a more helpful error message is a directory does not exist
---

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(