python - mysqldb中的批量插入会复制一份列表吗？

Question

def ins(values):
    cur.executemany('insert into test values(%d,%s,%s,%d)',values)
    conn.commit()
if count==3600:
    t3 = threading.Thread(target=ins,args=(values,))
    t3.start()
    values=[]

执行executemany时他会复制一份列表吗？
我考虑在创建进程时用args=(values[:])，但如果自带复制的话就是浪费资源了

Answer 1

executemany itself will not copy another copy of values.
And the values ​​are only read-only operations. I don’t know why we need to make a copy when creating a process?