Tkinter 多处理名称错误：未定义名称“记录器”

Question

我正在使用以下代码，但我收到“NameError: name 'logarea' is not defined”

from tkinter import *
from selenium import webdriver
from selenium.webdriver.common.by import By
from selenium.webdriver.chrome.options import Options
import time
import multiprocessing
from multiprocessing import Queue
import os
from tkinter import ttk
import logging
import datetime



curr_dir = os.getcwd()

def browserRun():
    global curr_dir
    timenow = datetime.datetime.now().strftime("%Y%m%d%H%M%S")
    logname = rf'{curr_dir}\Logs\Log-{timenow}.txt'
    logging.basicConfig(filename=logname,
                        filemode='a',
                        format='%(asctime)s: %(message)s',
                        datefmt='%d-%m-%Y %I:%M:%S %p',
                        level=logging.INFO,
                        force=True)
    while True:
        global driver
        options = Options()
        options.binary_location = r'D:\Downloads\Chromedriver\browser\chrome.exe'
        driver = webdriver.Chrome(executable_path=r'D:\Downloads\Chromedriver\chromedriver.exe', options=options)
        driver.get('http://google.com')
        logging.info(f"Logging to gmail")
        loggingtoUI(logname)
        time.sleep(5)
        driver.find_element(By.XPATH, '//input[@name="q"]').send_keys("Hello World")
        time.sleep(5)
        driver.close()
        driver.quit()

def start():
    global executor
    pqueue = Queue()
    executor = [multiprocessing.Process(target=browserRun) for _ in range(1)]
    for p in executor:
        p.daemon = True
        p.start()


def loggingtoUI(logname):
    global myfile
    global logarea
    with open(logname, "r") as myfile:
        try:
            MyText2 = myfile.read()
            logarea.config(state='normal')
            logarea.delete('1.0', END)
            logarea.insert(INSERT, MyText2)
            logarea.see("end")
            logarea.config(state='disabled')
        finally:
            myfile.close()




def stop():
    global executor
    for p in executor:
        p.terminate()
    # os.system("taskkill /F /IM chromedriver.exe /T")
    os.system("taskkill /F /IM CHROME.exe /T")


if __name__ == '__main__':
    global logarea
    root = Tk()
    notebook = ttk.Notebook(root, style='lefttab.TNotebook')
    tab1 = ttk.Frame(notebook)
    tab2 = ttk.Frame(notebook)
    notebook.add(tab1, text="Home")
    notebook.add(tab2, text="Settings")
    notebook.pack(fill=BOTH, expand=True)
    button = Button(tab1, text="start", command=start)
    button.place(x=20, y=20)
    button1 = Button(tab1, text="stop", command=stop)
    button1.place(x=70, y=20)
    logarea = Text(tab1, height=25, width=40, wrap='word', state='disabled')
    logarea.place(x=120, y=40)
    root.geometry("500x500")
    root.mainloop()

我将 logarea 设置为全局，但仍然出现 NameError，我尝试在启动和加载代码时将 logarea 设置为全局，但没有任何效果。

当我在另一个函数中调用 loggingtoUI 时会发生此问题。任何帮助将不胜感激。

Answer 1

终于找到答案了，谢谢大佬们的帮助

from queue import Empty, Full
import tkinter as Tk
import multiprocessing
from tkinter import ttk
from tkinter import *
from selenium import webdriver
from selenium.webdriver.common.by import By
from selenium.webdriver.chrome.options import Options
import logging
import datetime
import time
import os
import undetected_chromedriver.v2 as uc
import random
import tempfile



logname = ''
curr_dir = os.getcwd()

class GuiApp(object):
   def __init__(self, q):
      self.root = Tk()
      self.notebook = ttk.Notebook(self.root, style='lefttab.TNotebook')
      self.tab1 = ttk.Frame(self.notebook)
      self.tab2 = ttk.Frame(self.notebook)
      self.notebook.add(self.tab1, text="Home")
      self.notebook.add(self.tab2, text="Settings")
      self.notebook.pack(fill=BOTH, expand=True)
      self.button = Button(self.tab1, text="start", command=self.start)
      self.button.place(x=20, y=20)
      self.button1 = Button(self.tab1, text="stop", command=self.stop)
      self.button1.place(x=70, y=20)
      self.logarea = Text(self.tab1, height=25, width=40, wrap='word', state='disabled')
      self.logarea.place(x=120, y=40)
      self.root.geometry("500x500")
      self.root.after(100, self.CheckQueuePoll, q)

   def CheckQueuePoll(self, c_queue):
      global logname
      try:
         MyText2 = c_queue.get(0)
         self.logarea.config(state='normal')
         self.logarea.delete('1.0', END)
         self.logarea.insert('end', MyText2)
         self.logarea.config(state='disabled')
      except Empty:
         pass
      finally:
         self.root.after(100, self.CheckQueuePoll, c_queue)

   def start(self):
      global executor
      executor = [multiprocessing.Process(target=GenerateData,args=(q,)) for _ in range(2)]
      for p in executor:
         p.start()
      # t1 = multiprocessing.Process(target=GenerateData,args=(q,))
      # t1.start()

   def stop(self):
      # t1.terminate()
      for p in executor:
         p.terminate()
      os.system("taskkill /F /IM chromedriver.exe /T")
      # os.system("taskkill /F /IM CHROME.exe /T")


def GenerateData(q):
   global logname
   global curr_dir
   timenow = datetime.datetime.now().strftime("%Y%m%d%H%M%S")
   logname = rf'{curr_dir}\Logs\Log-{timenow}.txt'
   logging.basicConfig(filename=logname,
                          filemode='a',
                          format='%(asctime)s: %(message)s',
                          datefmt='%d-%m-%Y %I:%M:%S %p',
                          level=logging.INFO,
                          force=True)
   while True:
      options = uc.ChromeOptions()
      rand_num = random.randint(0000, 9999)
      temp = tempfile.gettempdir()
      temp_dir = rf'{temp}/temp{rand_num}'
      options.add_argument(f'--user-data-dir={temp_dir}')
      options.add_argument('--no-first-run --no-service-autorun --password-store=basic --disable-notifications')
      options.binary_location = rf'{curr_dir}\drivers\Browser\chrome.exe'
      driver = uc.Chrome(executable_path=rf'{curr_dir}\drivers\chromedriver.exe', options=options)
      driver.get('http://google.com')
      logging.info(f"Logging to gmail")
      f = open(logname, "r")
      q.put(f.read())
      time.sleep(5)
      driver.find_element(By.XPATH, '//input[@name="q"]').send_keys("Hello World")
      time.sleep(5)
      driver.close()
      driver.quit()

if __name__ == '__main__':
   q = multiprocessing.Queue()
   q.cancel_join_thread()  # or else thread that puts data will not term
   gui = GuiApp(q)
   gui.root.mainloop()