How to create multiple checkbox in loop using tkinter

I am New to use Tkinter.I want to create multiple checkbox from loop.I refer Tkinter checkboxes created in loop but i don't understand it. I want to display all files as a checkbox located in a directory.

Help me and tell me what i need to change ?

Code:

from tkinter import filedialog,Checkbutton

import tkinter,os

window = tkinter.Tk()

def browse():

    filez = filedialog.askdirectory(parent=window,title='Choose a file')#I choose a directory

    ent1.insert(20,filez)#insert the path of directory to text box
    dirs = os.listdir(filez)#gives all files of direcory
    for file in dirs:
       print(file)#Getting all files
       var = tkinter.IntVar()
       c = tkinter.Checkbutton(window,text=file,variable=var)#Create files to checkox
       c.place(x=0,y=100)



window.title("First Gui")

window.geometry("400x400")
window.wm_iconbitmap("path of icon")

lbl = tkinter.Label(window,text="path")

lbl.place(x=0,y=60)

ent1 = tkinter.Entry(window)

ent1.place(x=80,y=60)

btn1 = tkinter.Button(window,text="Set Path",command=browse)

btn1.place(x=210,y=57)


window.mainloop()

After click on button set path i want to to display all files of directory as a checkbox using browse function