我正在尝试从TKinter GUI的树视图中删除SQLite数据库中的一个项目。树视图返回一个类似I002的值。尝试转换为字符串或变量，也没有任何效果。以下是删除函数代码

def Database():
    global conn, cursor
    conn = sqlite3.connect('pythontut.db')
    cursor = conn.cursor()
    cursor.execute("CREATE TABLE IF NOT EXISTS `anno` (mem_id INTEGER PRIMARY KEY AUTOINCREMENT NOT NULL, daytype TEXT, time TEXT, audiofile TEXT)")
    
def Create():
    
    TIME = CHOUR.get() +":"+ CMIN.get() + ":"+ CSEC.get() + " "+CPERIOD.get()
    print(TIME)

    if  DAYTYPE.get() == "" or TIME == "":
        txt_result.config(text="Please complete the required field!", fg="red")
    else:
        Database()
        cursor.execute("INSERT INTO `anno` (daytype, time, audiofile) VALUES(?, ?, ?)", (str(DAYTYPE.get()), str(TIME), str(AUDIO_SELECTION.get())) )
        conn.commit()
        DAYTYPE.set("")
        cursor.close()
        conn.close()
        txt_result.config(text="Created a data!", fg="green")

def Read():
    tree.delete(*tree.get_children())
    Database()
    cursor.execute("SELECT * FROM `anno` ORDER BY `daytype` ASC")
    fetch = cursor.fetchall()
    for data in fetch:
        tree.insert('', 'end', values=(data[0], data[1], data[2], data[3]))
    cursor.close()
    conn.close()
    txt_result.config(text="Successfully read the data from database", fg="black")

def Delete():
    
    selected_items = tree.selection()
    Database()  
    for selected_item in selected_items:          
        tree.delete(selected_item)
        print(str(selected_item))
        cur = conn.cursor()
        cur.execute("DELETE FROM anno WHERE mem_id = ?", (selected_items,))
        conn.commit()
    conn.close()

返回以下错误

cur.execute(sql)
sqlite3.OperationalError: no such column: I002

我正在尝试从TKinter以及SQLite数据库中的树视图中删除选定的项目。