PYTHON

add button to python gui file

from tkinter import *   
root = Tk()             
root.geometry('100x100')
 
# Create a Button
btn = Button(root, text = 'Click me !', bd = '5',
                          command = root.destroy)
 
# Set the position of button on the top of window.  
btn.pack(side = 'top')   
 
root.mainloop()

add button to python gui file

import tkinter as tk
from tkinter import filedialog

def UploadAction(event=None):
    filename = filedialog.askopenfilename()
    print('Selected:', filename)

root = tk.Tk()
button = tk.Button(root, text='Open', command=UploadAction)
button.pack()

root.mainloop()