-

cool-RR · cool-RR · commit 95c17db44d19 · 2016-01-12T23:06:15.000+02:00
diff --git a/source_py2/python_toolbox/nifty_collections/cute_enum.py b/source_py2/python_toolbox/nifty_collections/cute_enum.py
@@ -7,7 +7,7 @@
 from python_toolbox import caching
 
         
-# @orking around Python bug 22506 that would be fixed in Python 3.5:
+# Working around Python bug 22506 that would be fixed in Python 3.5:
 del enum.EnumMeta.__dir__
 # This makes enum members not appear in `dir` but it also prevents other
 # important items from being deleted.
diff --git a/source_py3/python_toolbox/nifty_collections/cute_enum.py b/source_py3/python_toolbox/nifty_collections/cute_enum.py
@@ -1,7 +1,22 @@
 # Copyright 2009-2015 Ram Rachum.
 # This program is distributed under the MIT license.
 
-import enum
+try:
+    import enum
+except ImportError:
+    import imp
+    try:
+        imp.find_module('enum')
+    except ImportError:
+        raise Exception(
+            'You don\'t have the standard library Python package `enum`, '
+            'which I guess means you\'re running Python 3.3 or earlier. '
+            'Please either install the backported `enum34` module by running '
+            '`pip install enum34` or upgrade your Python version to 3.4 or '
+            'later.'
+        )
+    else:
+        raise 
 import functools
 
 from python_toolbox import caching
