accept underscore in viz id

diff --git a/telemeta/urls.py b/telemeta/urls.py
index 93966d38f44171c9f13f2677eb0ce877fb28d1ba..8923ab261e2c8ef6d18fb8b09684a5401260fb10 100644 (file)
--- a/telemeta/urls.py
+++ b/telemeta/urls.py
@@ -47,7 +47,7 @@ urlpatterns = patterns('',
             + export_extensions + ')$', 
         web_view.item_export,
         name="telemeta-item-export"),
-    url(r'^items/(?P<item_id>' + i_ex + ')/visualize/(?P<visualizer_id>[0-9a-z]+)/$', 
+    url(r'^items/(?P<item_id>' + i_ex + ')/visualize/(?P<visualizer_id>[0-9a-z_]+)/$', 
         web_view.item_visualize,
         name="telemeta-item-visualize"),
     url(r'^items/(?P<item_id>' + i_ex + ')/item_xspf.xml$',