commit 6b973747f3c5e31afd89f6a7d79bc9f3f1628710
author Andrew Svetlov <andrew.svetlov@gmail.com> Sat Nov 03 15:36:01 2012 +0200
committer Andrew Svetlov <andrew.svetlov@gmail.com> Sat Nov 03 15:36:01 2012 +0200
tree 10127b702286a312c859d4bf9922716f8ad402bf
parent 0f77bf27ca372655104884bf1e1ecaf014e8a61a

Issue #16284: Prevent keeping unnecessary references to worker functions in concurrent.futures ThreadPoolExecutor.

Lib/multiprocessing/queues.py

diff --git a/Lib/multiprocessing/queues.py b/Lib/multiprocessing/queues.py
index 37271fb..f6f02b6 100644
--- a/Lib/multiprocessing/queues.py
+++ b/Lib/multiprocessing/queues.py
@@ -243,10 +243,14 @@
 
                         if wacquire is None:
                             send(obj)
+                            # Delete references to object. See issue16284
+                            del obj
                         else:
                             wacquire()
                             try:
                                 send(obj)
+                                # Delete references to object. See issue16284
+                                del obj
                             finally:
                                 wrelease()
                 except IndexError: