--- a/hgext/mq.py
+++ b/hgext/mq.py
@@ -455,7 +455,7 @@ class queue:
                     repo.dirstate.invalidate()
                 raise
         finally:
-            del lock, wlock, tr
+            del tr, lock, wlock
 
     def _apply(self, repo, series, list=False, update_status=True,
                strict=False, patchdir=None, merge=None, all_files={}):

--- a/mercurial/commands.py
+++ b/mercurial/commands.py
@@ -1623,7 +1623,7 @@ def import_(ui, repo, patch1, *patches, 
             finally:
                 os.unlink(tmpname)
     finally:
-        del wlock, lock
+        del lock, wlock
 
 def incoming(ui, repo, source="default", **opts):
     """show new changesets found in source

--- a/mercurial/localrepo.py
+++ b/mercurial/localrepo.py
@@ -544,7 +544,7 @@ class localrepository(repo.repository):
             else:
                 self.ui.warn(_("no rollback information available\n"))
         finally:
-            del wlock, lock
+            del lock, wlock
 
     def invalidate(self):
         for a in "changelog manifest".split():
@@ -820,7 +820,7 @@ class localrepository(repo.repository):
             self.hook("commit", node=hex(n), parent1=xp1, parent2=xp2)
             return n
         finally:
-            del lock, wlock, tr
+            del tr, lock, wlock
 
     def walk(self, node=None, files=[], match=util.always, badmatch=None):
         '''