import tkinter as tk
from tkinter.filedialog import *
import fileinput
class Main(tk.Frame):
    def __init__(self, root):
        super().__init__(root)
        self.init_main()
        
    def init_main(self):
        frOrigin = tk.Frame(root,width=260,height=200)
        butFile1 = tk.Button(frOrigin,
                             text="Загрузить",width=10,font="Arial 10 bold",
                             command=self.openFile1)
        textArea1 = tk.Text(frOrigin,
                            width=35,height=18,font="Arial 10")
        scrollOriginX = tk.Scrollbar(frLeksem,
                                     command=textArea1.xview())
        scrollOriginY = tk.Scrollbar(frLeksem,
                                     command=textArea1.yview())
        textArea1.configure(xscrollcommand=scrollOriginX.set)
        textArea1.configure(yscrollcommand=scrollOriginY.set)
    def openFile1(self):
        op = askopenfilename()
        for text in fileinput.input(op):
            self.textArea1.insert(tk.END,text)