Syntax fixes for examples in the Doc/includes

Doc/includes/email-headers.py

@@ -12,6 +12,6 @@ headers = Parser().parsestr('From: <user@example.com>\n'
         'Body would go here\n')
 
 #  Now the header items can be accessed as a dictionary:
-print 'To: %s' % headers['to']
-print 'From: %s' % headers['from']
-print 'Subject: %s' % headers['subject']
+print('To: %s' % headers['to'])
+print('From: %s' % headers['from'])
+print('Subject: %s' % headers['subject'])

Doc/includes/sqlite3/load_extension.py

@@ -23,4 +23,4 @@ con.executescript("""
     insert into recipe (name, ingredients) values ('pumpkin pie', 'pumpkin sugar flour butter');
     """)
 for row in con.execute("select rowid, name, ingredients from recipe where name match 'pie'"):
-    print row
+    print(row)