我们设计一个这样的程序，给定目录，能够显示目录下的文件；
双击目录，能够显示这个目录下的文件；
#!/usr/bin/env python
# encoding: utf-8
import os
from time import sleep
from Tkinter import *
class DirList(object):
def __init__(self,initdir=None):
""" """
self.top=Tk()
self.title_label=Label(self.top,text="Directory Lister V1.1")
self.title_label.pack()
self.cwd=StringVar(self.top)
self.cwd_lable=Label(self.top,fg=‘blue‘,font=(‘Helvetica‘,12,‘bold‘))
self.cwd_lable.pack()
self.dirs_frame=Frame(self.top)
self.sbar=Scrollbar(self.dirs_frame)
self.sbar.pack(side=RIGHT,fill=Y)
self.dirs_listbox=Listbox(self.dirs_frame,height=15,width=50,yscrollcommand=self.sbar.set)
self.dirs_listbox.bind(‘<Double-1>‘,self.setDirAndGo)
self.dirs_listbox.pack(side=LEFT,fill=BOTH)
self.dirs_frame.pack()
self.dirn=Entry(self.top,width=50,textvariable=self.cwd)
self.dirn.bind("<Return>",self.doLS)
self.dirn.pack()
self.bottom_frame=Frame(self.top)
self.clr=Button(self.bottom_frame,text="Clear",command=self.clrDir,activeforeground=‘white‘,activebackground=‘blue‘)
self.ls=Button(self.bottom_frame,text="LS",command=self.doLS,activeforeground=‘white‘,activebackground=‘blue‘)
self.quit=Button(self.bottom_frame,text="Quit",command=self.top.quit,activeforeground=‘white‘,activebackground=‘blue‘)
self.clr.pack(side=LEFT)
self.ls.pack(side=LEFT)
self.quit.pack(side=LEFT)
self.bottom_frame.pack()
if initdir:
self.cwd.set(os.curdir)
self.doLS()
def clrDir(self,ev=None):
#self.cwd.set(‘‘)
self.dirs_listbox.delete(first=0,last=END)
def setDirAndGo(self, ev=None):
"""pass
:ev: @todo
:returns: @todo
"""
self.last=self.cwd.get()
self.dirs_listbox.config(selectbackground=‘red‘)
check=self.dirs_listbox.get(self.dirs_listbox.curselection())
if not check:
check=os.curdir
#check is the selected item for file or directory
self.cwd.set(check)
self.doLS()
def doLS(self,ev=None):
error=""
self.cwd_lable.config(text=self.cwd.get())
tdir=self.cwd.get()#get the current working directory
if not tdir:
tdir=os.curdir
if not os.path.exists(tdir):
error=tdir+‘:no such file‘
elif not os.path.isdir(tdir):
error=tdir+":not a directory"
if error:#if error occured
self.cwd.get(error)
self.top.update()
sleep(2)
if not (hasattr(self,‘last‘) and self.last):
self.last=os.curdir
self.cwd.set(self,last)
self.dirs_listbox.config(selectbackground=‘LightSkyBlue‘)
self.top.update()
return
self.cwd.set("fetching dir contents")
self.top.update()
dirlist=os.listdir(tdir)
dirlist.sort()
os.chdir(tdir)
self.dirs_listbox.delete(0,END)
self.dirs_listbox.insert(END,os.curdir)
self.dirs_listbox.insert(END,os.pardir)
for eachfile in dirlist:
self.dirs_listbox.insert(END,eachfile)
self.cwd.set(os.curdir)
self.dirs_listbox.config(selectbackground=‘LightSkyBlue‘)
def main():
d=DirList(os.curdir)
mainloop()
if __name__ == ‘__main__‘:
main()原文：http://blog.csdn.net/trochiluses/article/details/22212645