prevent ref cycles by removing bound method on close()

diff --git a/Lib/aifc.py b/Lib/aifc.py
index 8e4f864495d42f90e529f9b6ffcd8a2c0276adb2..f9db3f483555e23aaa9cf6093903070b343cd225 100644 (file)
--- a/Lib/aifc.py
+++ b/Lib/aifc.py
@@ -732,6 +732,8 @@ class Aifc_write:
         if self._comp:
             self._comp.CloseCompressor()
             self._comp = None
+        # Prevent ref cycles
+        self._convert = None
         self._file.flush()
         self._file = None