gh-96168: Improve sqlite3 dict_factory example (#96457)

Erlend E. Aasland · CAM-Gerlach · ezio-melotti · web-flow · commit 91f40f3f78d6 · 2022-09-01T23:47:59.000+02:00
Co-authored-by: C.A.M. Gerlach &lt;CAM.Gerlach@Gerlach.CAM&gt;
Co-authored-by: Ezio Melotti &lt;ezio.melotti@gmail.com&gt;
diff --git a/Doc/library/sqlite3.rst b/Doc/library/sqlite3.rst
@@ -601,25 +601,16 @@ Connection objects
 
       Example:
 
-      .. testcode::
-
-         def dict_factory(cursor, row):
-             d = {}
-             for idx, col in enumerate(cursor.description):
-                 d[col[0]] = row[idx]
-             return d
-
-         con = sqlite3.connect(":memory:")
-         con.row_factory = dict_factory
-         cur = con.execute("SELECT 1 AS a")
-         print(cur.fetchone()["a"])
-
-         con.close()
-
-      .. testoutput::
-         :hide:
+      .. doctest::
 
-         1
+         >>> def dict_factory(cursor, row):
+         ...     col_names = [col[0] for col in cursor.description]
+         ...     return {key: value for key, value in zip(col_names, row)}
+         >>> con = sqlite3.connect(":memory:")
+         >>> con.row_factory = dict_factory
+         >>> for row in con.execute("SELECT 1 AS a, 2 AS b"):
+         ...     print(row)
+         {'a': 1, 'b': 2}
 
       If returning a tuple doesn't suffice and you want name-based access to
       columns, you should consider setting :attr:`row_factory` to the
