# HG changeset patch
# User James Bergstra <bergstrj@iro.umontreal.ca>
# Date 1306280105 14400
# Node ID 1e4dc99a3b132d0285f115b7fc2e5e471ad15406
# Parent  48efafaaf7fbe5ba4666f6d9997d12d570f1b9ad
better error in icml07 when data folder is missing

diff -r 48efafaaf7fb -r 1e4dc99a3b13 pylearn/datasets/icml07.py
--- a/pylearn/datasets/icml07.py	Sat May 21 01:03:10 2011 -0400
+++ b/pylearn/datasets/icml07.py	Tue May 24 19:35:05 2011 -0400
@@ -96,6 +96,8 @@
 def icml07_loaders(new_version=True, rootdir=None):
     if rootdir is None:
         rootdir = get_filepath_in_roots('icml07data_twiki')
+    if rootdir is None:
+        raise IOError('dataset not found (no icml07data_twiki folder in dbpath')
     rval = dict(
         mnist_basic=DatasetLoader(
             http_source='http://www.iro.umontreal.ca/~lisa/icml2007data/mnist.zip',