Удаление группы из базы данных

import sqlite3
import sys
import os
import binascii
 
 
def reader(fname, nm):
    with open(fname, 'rb')as fp:
        content = fp.read()
        # print(binascii.hexlify(content))
        fhex = (binascii.hexlify(content))
    fp.close()
    try:
        conn = sqlite3.connect(nm + '.' + 'db')
        cur = conn.cursor()
        cur.execute(
            '''create table if not exists music(id int auto_increment primary key not null, muzname varchar(50), mfile blob not null)''')
 
        cur.execute("insert into music(id,muzname,mfile)values(1,'my',?)", (fhex,))
 
        cur.execute("select  * from music ")
        results = cur.fetchall()
        print(results)
        conn.commit()
        with open(nm + '.' + 'sql', 'w')as fp:
            for line in conn.iterdump():
                fp.write("%s\n" % line)
 
 
    finally:
        cur.close()
        conn.close()
 
    # print(fhex)
    return fhex
 
 
def reader1(fname, nm):
    with open(fname, 'rb')as fp:
        content = fp.read()
        # print(binascii.hexlify(content))
        fhex = (binascii.hexlify(content))
    fp.close()
    try:
        conn = sqlite3.connect(nm + '.' + 'db')
        cur = conn.cursor()
        cur.execute(
            '''create table if not exists music(id int auto_increment primary key not null, muzname varchar(50), mfile blob not null)''')
 
        cur.execute("select * from music")
 
        cur.execute("select  * from music ")
        results = cur.fetchall()
        print(results)
        conn.commit()
        with open(nm + '.' + 'sql', 'w')as fp:
            for line in conn.iterdump():
                fp.write("%s\n" % line)
 
 
    finally:
        cur.close()
        conn.close()
 
    # print(fhex)
    return fhex
 
 
def reader2(fname, nm):
    with open(fname, 'rb')as fp:
        content = fp.read()
        # print(binascii.hexlify(content))
        fhex = (binascii.hexlify(content))
    fp.close()
    try:
        conn = sqlite3.connect(nm + '.' + 'db')
        cur = conn.cursor()
        cur.execute(
            '''create table if not exists music(id int auto_increment primary key not null, muzname varchar(50), mfile blob not null)''')
 
        cur.execute("delete  from music")
 
        cur.execute("select  * from music ")
        results = cur.fetchall()
        print(results)
        conn.commit()
        with open(nm + '.' + 'sql', 'w')as fp:
            for line in conn.iterdump():
                fp.write("%s\n" % line)
 
 
 
    finally:
        cur.close()
        conn.close()
 
    # print(fhex)
    return fhex
 
 
def reader2(fname, nm):
    with open(fname, 'rb')as fp:
        content = fp.read()
        # print(binascii.hexlify(content))
        fhex = (binascii.hexlify(content))
    fp.close()
    try:
        conn = sqlite3.connect(nm + '.' + 'db')
        cur = conn.cursor()
        cur.execute(
            '''create table if not exists music(id int auto_increment primary key not null, muzname varchar(50), mfile blob not null)''')
 
        cur.execute("update music  set musnane='rock' where music.id=1")
 
        cur.execute("select  * from music ")
        results = cur.fetchall()
        print(results)
        conn.commit()
        with open(nm + '.' + 'sql', 'w')as fp:
            for line in conn.iterdump():
                fp.write("%s\n" % line)
 
 
 
    finally:
        cur.close()
        conn.close()
 
    # print(fhex)
    return fhex
 
 
if __name__ == '__main__':
    fhex = []
    nm = str(input("имя базы"))
    fname = '1.jpg'
reader(fname, nm)
reader1(fname, nm)
reader2(fname, nm)

from tkinter import *
from tkinter import messagebox
 
 
def call_me():
    messagebox.showinfo("Success", "Welcome to our tutorial") # утроить 
 
 
root = Tk()
 
b = Button(root, text="Click here", command=call_me)
b.pack()
 
root.geometry("400x400+120+120")
root.mainloop()