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/chunk.py

@@ -85,8 +85,10 @@ class Chunk:
 
     def close(self):
         if not self.closed:
-            self.skip()
-            self.closed = True
+            try:
+                self.skip()
+            finally:
+                self.closed = True
 
     def isatty(self):
         if self.closed: