Python Tkinter输出文本到文本小部件

import subprocess import os import time from tkinter import * root=Tk() textbox=Text(root) textbox.pack() def redirector(inputStr): textbox.insert(INSERT, inputStr) def address_ping(): ''' DOCSTRING -> Ip addresses in servers.txt are 192.168.0.1 192.168.0.26 ''' while True: with open('servers.txt', 'r') as f: for ip in f: result=subprocess.Popen(["ping", "-c", "7", "-n", "-W", "2", ip],stdout=f, stderr=f).wait() if result: print("ip address " + ip, "is inactive") sys.stdout.write = redirector else: print("ip address " + ip, "is active") sys.stdout.write = redirector pass address_ping() root.mainloop()

这里有一些东西,使用多线程,似乎做你想要的。主程序分为处理QUI的部分和单独的 workerthread 管理ping的 subprocess ,从中收集结果并将其放入 Queue 其内容定期传输到GUI。

它使用 time.sleep() 因为它是在一个单独的线程中完成的不用tkinter就行了。

注意,您可能需要在GUI中添加一个垂直滚动条。

import subprocess
import queue
import threading
import time
import tkinter as tk


class GuiPart:
    def __init__(self, master, queue, end_command):
        self.queue = queue
        self.master = master
        self.textbox = tk.Text(root)
        self.textbox.pack()
        btn = tk.Button(master, text='Quit', command=end_command)
        btn.pack(expand=True)

    def process_incoming(self):
        """ Handle all messages currently in the queue. """
        while self.queue.qsize():
            try:
                info = self.queue.get_nowait()
                self.textbox.insert(tk.INSERT, info)
            except queue.Empty:  # Shouldn't happen.
                pass


class ThreadedClient:
    """ Launch the main part of the GUI and the worker thread.
        periodic_call() and end_application() could reside in the GUI part, but
        putting them here keeps all the thread controls in a single place.
    """
    def __init__(self, master):
        self.master = master
        self.queue = queue.Queue()

        # Set up the GUI part.
        self.gui = GuiPart(master, self.queue, self.end_application)

        # Set up the background processing thread.
        self.running = True
        self.thread = threading.Thread(target=self.workerthread)
        self.thread.start()

        # Start periodic checking of the queue.
        self.periodic_call(200)

    def periodic_call(self, delay):
        """ Every delay ms process everything new in the queue. """
        self.gui.process_incoming()
        if not self.running:
            sys.exit(1)
        self.master.after(delay, self.periodic_call, delay)

    # Runs in separate thread - NO tkinter calls allowed.
    def workerthread(self):
        while self.running:
            with open('servers.txt', 'r') as file:
                for ip in file:
                    rc = subprocess.Popen(["ping", "-c", "7", "-n", "-W", "2", ip]).wait()
                    if rc:
                        self.queue.put('ip address {} is inactive\n'.format(ip))
                    time.sleep(1)

    def end_application(self):
        self.running = False  # Stop queue checking.
        self.master.quit()


if __name__ == '__main__':
    root = tk.Tk()
    root.title('Pinger')
    client = ThreadedClient(root)
    root.mainloop()  # Display application window and start tkinter event loop.