sqlite插入使用{...}和？同时

Question

我必须遵循以下代码：

temp = item.get() #returns a string
c.execute("INSERT OR IGNORE INTO {tn} ({cn}, {dn}, {en}) VALUES (?, 23, 10)".\
format(tn=table_name, cn=field2, dn = field3, en = field4), (temp))

但是，代码会导致错误：

File "First_GUI.py", line 47, in func_confirm
format(tn=table_name, cn=field2, dn = field3, en = field4), (temp))
sqlite3.ProgrammingError: Incorrect number of bindings supplied. The current 
statement uses 1, and there are 0 supplied.

您是否知道如何修复语法？