tk.Button(self, text="Начать", command=Thread(target=self.start_check).run).grid(row=4, column=1)
        self.choose_btn.grid(row=4, column=2)

    def ask_file(self):
        self.proxies_file = filedialog.askopenfile(initialdir = "/",
                                                   title = "Выбрать файл",filetypes = (("TXT with proxies", "*.txt"),))
        self.choose_btn['text'] = "Выбрано"

    def start_check(self):
        i = 0
        proxies = self.proxies_file.read().split('\n')
        self.set_window()

        for proxy in proxies:
            print("checked")
            sleep(1)
            self.set_status(i, proxies)
            i += 1

    def set_status(self, i, all_its):
        self.status_label['text'] = "Выполняется {} из {}".format(i, len(all_its))

    def set_window(self):
        self.destroy()
        self.status_label = tk.Label(text="Выполняется...")
        self.status_label.grid(row=1, column=1)