From: Thomas Wouters <thomas@python.org>
Date: Tue, 28 Mar 2006 08:14:24 +0000 (+0000)
Subject: Add an example of a generator->freevar->cell->generator reference-cycle that
X-Git-Tag: v2.5a0~49
X-Git-Url: http://git.ipfire.org/gitweb.cgi?a=commitdiff_plain;h=a33b2bc873fd5b02e02c8961a32989c83066414e;p=thirdparty%2FPython%2Fcpython.git

Add an example of a generator->freevar->cell->generator reference-cycle that
doesn't get cleaned up and thus leaks.
---

diff --git a/Lib/test/leakers/test_generator_cycle.py b/Lib/test/leakers/test_generator_cycle.py
new file mode 100644
index 000000000000..d2fa72ca8e86
--- /dev/null
+++ b/Lib/test/leakers/test_generator_cycle.py
@@ -0,0 +1,11 @@
+
+# This leaks since the introduction of yield-expr and the use of generators
+# as coroutines, trunk revision 39239. The cycle-GC doesn't seem to pick up
+# the cycle, or decides it can't clean it up.
+
+def leak():
+    def gen():
+        while True:
+            yield g
+    g = gen()
+