類型錯誤：對格式字符串

Question

參數不夠，我試圖與Tornado's database wrapper執行查詢，這樣的 -

p_id = db.execute_lastrowid("""INSERT INTO `gplaces`.`place` 
            (`gid`, `name`, `reference`, `lat`, `long`, `vicinity`) 
            VALUES (%s, %s, %s, %s, %s, %s)""", 
            (
             str(place['id']), 
             str(place['name']), 
             str(place['reference']), 
             float(place['geometry']['location']['lat']), 
             float(place['geometry']['location']['lng']), 
             str(place['vicinity']) 
            ) 
           ) 

但總是得到標題中的錯誤。這是回溯 -

Traceback (most recent call last): 
    File "insertbs.py", line 38, in <module> 
    str(place['vicinity']) 
    File "/home/bibhas/Works/yodl/database.py", line 145, in execute_lastrowid 
    self._execute(cursor, query, parameters) 
    File "/home/bibhas/Works/yodl/database.py", line 207, in _execute 
    return cursor.execute(query, parameters) 
    File "/usr/lib/pymodules/python2.7/MySQLdb/cursors.py", line 159, in execute 
    query = query % db.literal(args) 
TypeError: not enough arguments for format string 

不知道我在做什麼錯。

Answer 1

不要傳遞值的元組，將它們作爲單獨的參數傳遞。

從回溯：

query = query % db.literal(args) 

注意什麼在被插入 - args。基本上，只需刪除圍繞您傳遞的內容的()，以便它們可以作爲參數傳遞。

Answer 2

給琥珀色的功勞，我只是張貼一個例子：

p_id = db.execute_lastrowid("""INSERT INTO `gplaces`.`place` 
           (`gid`, `name`, `reference`, `lat`, `long`, `vicinity`) 
           VALUES (%s, %s, %s, %s, %s, %s)""", 

           str(place['id']), 
           str(place['name']), 
           str(place['reference']), 
           float(place['geometry']['location']['lat']), 
           float(place['geometry']['location']['lng']), 
           str(place['vicinity']) 

          ) 

所以，在你只傳遞一個參數，包含所有參數的元組。在這個例子中，你傳遞了6個參數，這是它期望的。