我正在尝试编写一个程序，该程序列出一个文件夹中所有.xml文件的列表，然后将它们复制到另一个目录并从原始目录中删除。该程序的这一部分工作正常。我想要这样做，以便可以在GUI中单击一个按钮，并使其扫描并处理文件夹，直到按下按钮将其关闭为止。再说一次，打开它不是问题，但是试图阻止它使我感到困惑。我希望它在这之间等待一段时间，但是使用time.sleep（x）会冻结整个程序，并且直到停止睡眠后才允许我输入其他命令，只是让它处理然后再次进入睡眠状态。关于如何从GUI
tkinter按钮开始/停止while循环的任何建议？

代码如下：

#! python3
import glob
import time
import shutil
import os
import sys
import datetime
import errno
import re
import fnmatch
import tkinter # copy tcl8.5 and tk8.5 to folder
from tkinter import ttk
import sched



flag = 0

with open("config.ini") as f:
    g = f.readlines()
    sourcedir = g[0][10:-1]
    ICdir = g[1][13:-1]
    BUdir = g[2][13:-1]
    LOGdir = g[3][8:-1]
    el = g[4][3:-1]

# reads directories from config.ini

h = len(sourcedir)
# obtains length of address, used later on

def exemel():
    m = sorted(glob.glob(sourcedir+"/*.xml"), key=os.path.getmtime)
    n = len(m)
    if n == 0:
        print("none left")
    for item in range(n):
        try:
            m = sorted(glob.glob(sourcedir+"/*.xml"), key=os.path.getmtime)
            n = len(m)
            if n == 0:
                print("none left")
            global flag
            if flag == 5:
                flag = 0
                item = item + 1
            with FileLock(m[item]):
                k = h - len(m[item])
                g = m[item][k:] 
                shutil.copy(m[item], ICdir)
                shutil.move(m[item], BUdir)
                print(m[item] + " successfully processed.")
                dated = datetime.datetime.now().strftime("%Y-%m-%d %H:%M:%S")
                if os.path.exists(LOGdir):
                    with open(LOGdir, "a") as logging:
                        logline = '\n' + '"' + g[1:] + '", #' + dated + "# copied"
                        logging.write(logline)
                else:
                    with open(LOGdir, "w") as logging:
                        logline = '"' + g[1:] + '", #' + dated + "# copied"
                        logging.write(logline)


        except PermissionError:
            print("File in use, waiting..")
            time.sleep(1.5)
            flag += 1
            continue
        except shutil.Error as e:
            os.remove(ICdir + g)
            os.remove(BUdir + g)
            print("Existing files removed..")
            dated = datetime.datetime.now().strftime("%Y-%m-%d %H:%M:%S")
            if el == "1":
                if os.path.exists(LOGdir):
                    with open(LOGdir, "a") as logging:
                        logline = '\n' + '"' + g[1:] + '", #' + dated + "# overwritten"
                        logging.write(logline)
                else:
                    with open(LOGdir, "w") as logging:
                        logline = '"' + g[1:] + '", #' + dated + "# overwritten"
                        logging.write(logline)
        except IndexError:
            item = 0
            continue
        except SystemExit:
            break
        except KeyboardInterrupt:
            break



def prunt():
    print("ZES")


def config():
    print("config")

def stop():
    print("stop")
    global x
    x = False
    global STOP
    STOP = True



s = sched.scheduler(time.time, time.sleep)

def run_periodically(start, end, interval, func):
    event_time = start
    while event_time < end:
        s.enterabs(event_time, 0, func, ())
        event_time += interval
    s.run()


def starter():
    run_periodically(time.time(), time.time()+600, 60, exemel)



### GUI BEGIN ###


root = tkinter.Tk()
root.title("XML Wizard")

mainframe = ttk.Frame(root, padding="3 3 12 12")
mainframe.grid(column=0, row=0, sticky=("N","W", "E", "S"))
mainframe.columnconfigure(0, weight=1)
mainframe.rowconfigure(0, weight=1)


sourceEntry = ttk.Entry(mainframe, width=50, textvariable=sourcedir)
sourceEntry.grid(column=2, row = 1, columnspan=2)
ttk.Label(mainframe, text="Source Directory:").grid(column=1, row=1, sticky="W")

BackupEntry = ttk.Entry(mainframe, width=50, textvariable=BUdir)
BackupEntry.grid(column=2, row = 2, columnspan=2)
ttk.Label(mainframe, text="Backup Directory:").grid(column=1, row=2, sticky="W")

ImportEntry = ttk.Entry(mainframe, width=50, textvariable=ICdir)
ImportEntry.grid(column=2, row = 3, columnspan=2)
ttk.Label(mainframe, text="Import Directory:").grid(column=1, row=3, sticky="W")

ttk.Button(mainframe, text="Go", command=starter).grid(column=4, row=5, sticky="W")
ttk.Button(mainframe, text="Save Config", command=config).grid(column=5, row=4, sticky="W")
ttk.Button(mainframe, text="Load Config", command=config).grid(column=5, row=3, sticky="W")
ttk.Button(mainframe, text="Stop", command=stop).grid(column=3, row=5, sticky="W")

root.mainloop()

FileLock函数位于此处，如果您想知道，它可以完美地工作，但出于空间/可读性的考虑，我将其省略。我知道我的代码草率，但我才刚刚开始编程。

任何建议/替代方法都非常欢迎！

顺便说一句：exemel是我要循环的功能！