Issue #16481: multiprocessing no longer leaks process handles on Windows.

shibturn · shibturn · commit 021f4c2ecca4 · 2012-11-15T18:16:35.000Z
diff --git a/Lib/multiprocessing/forking.py b/Lib/multiprocessing/forking.py
@@ -233,6 +233,7 @@ def __init__(self, process_obj):
                 self.returncode = None
                 self._handle = hp
                 self.sentinel = int(hp)
+                util.Finalize(self, _winapi.CloseHandle, (self.sentinel,))
 
                 # send information to child
                 Popen._tls.process_handle = int(hp)
diff --git a/Misc/NEWS b/Misc/NEWS
@@ -85,6 +85,8 @@ Core and Builtins
 Library
 -------
 
+- Issue #16481: multiprocessing no longer leaks process handles on Windows.
+
 - Issue #16140: The subprocess module no longer double closes its child
   subprocess.PIPE parent file descriptors on child error prior to exec().
 
