Add nested exception handling

zopefoundation · May 13, 2017 · f9fbb2a · f9fbb2a
1 parent 9a5932e
commit f9fbb2a
Showing 1 changed file with 3 additions and 2 deletions.
diff --git a/src/OFS/CopySupport.py b/src/OFS/CopySupport.py
@@ -22,6 +22,7 @@
 from zlib import compress
 from zlib import decompressobj
 import transaction
+import six
 
 from AccessControl import ClassSecurityInfo
 from AccessControl import getSecurityManager
@@ -181,8 +182,8 @@ def manage_pasteObjects(self, cb_copy_data=None, REQUEST=None):
 
         try:
             op, mdatas = _cb_decode(cp)
-        except Exception:
-            raise CopyError('Clipboard Error')
+        except Exception as e:
+            six.raise_from(CopyError('Clipboard Error'), e)
 
         oblist = []
         app = self.getPhysicalRoot()