TypeError:在字符串格式化期间并非所有参数都转换为opg2

Question

以下查询似乎无法执行，出现错误- TypeError:不是所有参数都在字符串格式化期间转换。我哪里做错了？你知道吗

    cursor = connection.cursor()

    cursor.execute("INSERT INTO darkweb (onionurl, sitetext) VALUES(%s, 'test') ON CONFLICT (onionurl) DO NOTHING)", (onion))
    connection.commit() 
    cursor.close()

Answer 1

您需要在输入元组中添加逗号。你知道吗

cursor = connection.cursor()

cursor.execute("INSERT INTO darkweb (onionurl, sitetext) VALUES(%s, 'test') ON CONFLICT (onionurl) DO NOTHING)", (onion,))
connection.commit() 
cursor.close()

或者你可以这样做：

cursor.execute("INSERT INTO darkweb (onionurl, sitetext) VALUES(%s, 'test') ON CONFLICT (onionurl) DO NOTHING)", [onion])