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-rw-r--r--Lib/threading.py4
1 files changed, 4 insertions, 0 deletions
diff --git a/Lib/threading.py b/Lib/threading.py
index fd93f74..d260983 100644
--- a/Lib/threading.py
+++ b/Lib/threading.py
@@ -6,6 +6,7 @@ import _thread
from time import time as _time, sleep as _sleep
from traceback import format_exc as _format_exc
from collections import deque
+from _weakrefset import WeakSet
# Note regarding PEP 8 compliant names
# This threading model was originally inspired by Java, and inherited
@@ -606,6 +607,8 @@ _active_limbo_lock = _allocate_lock()
_active = {} # maps thread id to Thread object
_limbo = {}
+# For debug and leak testing
+_dangling = WeakSet()
# Main class for threads
@@ -640,6 +643,7 @@ class Thread(_Verbose):
# sys.stderr is not stored in the class like
# sys.exc_info since it can be changed between instances
self._stderr = _sys.stderr
+ _dangling.add(self)
def _reset_internal_locks(self):
# private! Called by _after_fork() to reset our internal locks as