Cursor doesn't create Python objects when discarding.

Author: methane

src/MySQLdb/cursors.py

@@ -75,13 +75,23 @@ def __init__(self, connection):
         self.rownumber = None
         self._rows = None
 
+    def _discard(self):
+        if self._result:
+            self._result.discard()
+            self._result = None
+
+        con = self.connection
+        if con is None:
+            return
+        while con.next_result():
+            con.discard_result()
+
     def close(self):
         """Close the cursor. No further queries will be possible."""
         try:
             if self.connection is None:
                 return
-            while self.nextset():
-                pass
+            self._discard()
         finally:
             self.connection = None
             self._result = None
@@ -180,8 +190,7 @@ def execute(self, query, args=None):
 
         Returns integer represents rows affected, if any
         """
-        while self.nextset():
-            pass
+        self._discard()
 
         mogrified_query = self._mogrify(query, args)