- [bug] Fixed bug in plugin loader to correctly
  raise exception when non-existent plugin
  is specified.

CHANGES

diff --git a/CHANGES b/CHANGES
index c9e899e..46465f1 100644
--- a/CHANGES
+++ b/CHANGES
@@ -11,6 +11,10 @@
   identifiers from the context the same
   way as that of <%block> and <%filter>.
 
+- [bug] Fixed bug in plugin loader to correctly
+  raise exception when non-existent plugin
+  is specified.
+
 0.7.2
 - [bug] Fixed regression in 0.7.1 where AST
   parsing for Py2.4 was broken.

mako/util.py

diff --git a/mako/util.py b/mako/util.py
index 00c51e4..4b88ae5 100644
--- a/mako/util.py
+++ b/mako/util.py
@@ -84,7 +84,7 @@
 
     def load(self, name):
         if name in self.impls:
-             return self.impls[name]()
+            return self.impls[name]()
         else:
             import pkg_resources
             for impl in pkg_resources.iter_entry_points(
@@ -93,6 +93,7 @@
                 self.impls[name] = impl.load
                 return impl.load()
             else:
+                from mako import exceptions
                 raise exceptions.RuntimeException(
                         "Can't load plugin %s %s" %
                         (self.group, name))

test/test_util.py

diff --git a/test/test_util.py b/test/test_util.py
index 04b2c09..b875f53 100644
--- a/test/test_util.py
+++ b/test/test_util.py
@@ -2,8 +2,8 @@
 
 import os
 import unittest
-from mako import util
-from test import eq_, skip_if
+from mako import util, exceptions
+from test import eq_, skip_if, assert_raises_message
 
 class UtilTest(unittest.TestCase):
     def test_fast_buffer_write(self):
@@ -40,3 +40,11 @@
         module = util.load_module('mako.template', fn)
         import mako.template
         self.assertEqual(module, mako.template)
+
+    def test_load_plugin_failure(self):
+        loader = util.PluginLoader("fakegroup")
+        assert_raises_message(
+            exceptions.RuntimeException,
+            "Can't load plugin fakegroup fake",
+            loader.load, "fake"
+        )