commit 7e7a3dba5fd4262269f713dfe21ba7e4746fc2dd
author Serhiy Storchaka <storchaka@gmail.com> Fri Apr 10 13:24:41 2015 +0300
committer Serhiy Storchaka <storchaka@gmail.com> Fri Apr 10 13:24:41 2015 +0300
tree a0777a3e70ae76f294fac756c684ec4e24d5df1d
parent 842f00e72509db50957ceb00d289b305dbc5a0a5

Issue #23865: close() methods in multiple modules now are idempotent and more
robust at shutdown. If needs to release multiple resources, they are released
even if errors are occured.

Lib/sunau.py

diff --git a/Lib/sunau.py b/Lib/sunau.py
index 3da41b7..e760093 100644
--- a/Lib/sunau.py
+++ b/Lib/sunau.py
@@ -295,9 +295,11 @@
         self._soundpos = pos
 
     def close(self):
-        if self._opened and self._file:
-            self._file.close()
-        self._file = None
+        file = self._file
+        if file:
+            self._file = None
+            if self._opened:
+                file.close()
 
 class Au_write:
 
@@ -438,9 +440,10 @@
                     self._patchheader()
                 self._file.flush()
             finally:
-                if self._opened and self._file:
-                    self._file.close()
+                file = self._file
                 self._file = None
+                if self._opened:
+                    file.close()
 
     #
     # private methods