Merged in harlowja/six/fix-delattr (pull request #54)

Fix issue #98

1 files changed, 6 insertions, 2 deletions

diff --git a/six.py b/six.py
index 4252fdf..0df4538 100644
--- a/six.py
+++ b/six.py
@@ -88,8 +88,12 @@ class _LazyDescr(object):
     def __get__(self, obj, tp):
         result = self._resolve()
         setattr(obj, self.name, result) # Invokes __set__.
-        # This is a bit ugly, but it avoids running this again.
-        delattr(obj.__class__, self.name)
+        try:
+            # This is a bit ugly, but it avoids running this again by
+            # removing this descriptor.
+            delattr(obj.__class__, self.name)
+        except AttributeError:
+            pass
         return result