From dda68d7a4ef92493fa7a2c77021c06fa45565820 Mon Sep 17 00:00:00 2001
From: Ben Harper <btharper1221@gmail.com>
Date: Mon, 7 Oct 2019 12:19:58 -0400
Subject: [PATCH] bpo-36356: Fix memory leak in _asynciomodule.c (GH-16598)

---
 Modules/_asynciomodule.c | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/Modules/_asynciomodule.c b/Modules/_asynciomodule.c
index b67afd41768fe5..89b2fdea0f6321 100644
--- a/Modules/_asynciomodule.c
+++ b/Modules/_asynciomodule.c
@@ -33,6 +33,7 @@ static PyObject *asyncio_task_repr_info_func;
 static PyObject *asyncio_InvalidStateError;
 static PyObject *asyncio_CancelledError;
 static PyObject *context_kwname;
+static int module_initialized;
 
 static PyObject *cached_running_holder;
 static volatile uint64_t cached_running_holder_tsid;
@@ -3247,6 +3248,12 @@ module_init(void)
     if (asyncio_mod == NULL) {
         goto fail;
     }
+    if (module_initialized != 0) {
+        return 0;
+    } 
+    else {
+        module_initialized = 1;
+    }
 
     current_tasks = PyDict_New();
     if (current_tasks == NULL) {