remove unused imports, fix syntax

zopefoundation · Mar 31, 2018 · f762fde · f762fde
1 parent 7ac003e
commit f762fde
Showing 1 changed file with 2 additions and 5 deletions.
diff --git a/src/Products/ZopeVersionControl/Version.py b/src/Products/ZopeVersionControl/Version.py
@@ -13,16 +13,13 @@
 
 __version__='$Revision: 1.11 $'[11:-2]
 
-import tempfile
 import time
 
-from Acquisition import Implicit, aq_parent, aq_inner, aq_base
+from Acquisition import Implicit, aq_base
 from App.class_init import default__class_init__ as InitializeClass
 from Persistence import Persistent
 from AccessControl import ClassSecurityInfo
-from BTrees.OOBTree import OOBTree
 from OFS.SimpleItem import SimpleItem
-from .Utility import VersionControlError
 from ZODB._compat import BytesIO
 from ZODB._compat import Pickler, Unpickler
 from .nonversioned import listNonVersionedObjects, removeNonVersionedData
@@ -39,7 +36,7 @@ def cloneByPickle(obj, ignore_list=()):
         ignore_dict[id(o)] = o
 
     def persistent_id(ob, ignore_dict=ignore_dict):
-        if ignore_dict.has_key(id(ob)):
+        if id(ob) in ignore_dict:
             return 'ignored'
         if getattr(ob, '_p_changed', 0) is None:
             ob._p_changed = 0