python之如何让 Python 记住设置

我在下面编写了漂亮的 python 示例代码。现在我该怎么做才能在退出然后重新启动程序时记住秤的最后位置？

import Tkinter 
 
root = Tkinter.Tk() 
 
root.sclX = Tkinter.Scale(root, from_=0, to=1500, orient='horizontal', resolution=1) 
root.sclX.pack(ipadx=75) 
 
root.resizable(False,False) 
root.title('Scale') 
root.mainloop() 

编辑:

我试过下面的代码

import Tkinter 
import cPickle 
 
 
root = Tkinter.Tk() 
 
root.sclX = Tkinter.Scale(root, from_=0, to=1500, orient='horizontal', resolution=1) 
root.sclX.pack(ipadx=75) 
 
 
 
root.resizable(False,False) 
root.title('Scale') 
 
 
with open('myconfig.pk', 'wb') as f: 
    cPickle.dump(f, root.config(), -1) 
    cPickle.dump(f, root.sclX.config(), -1) 
root.mainloop() 

但是得到如下错误

Traceback (most recent call last): 
  File "<string>", line 244, in run_nodebug 
  File "C:\Python26\pickleexample.py", line 17, in <module> 
    cPickle.dump(f, root.config(), -1) 
TypeError: argument must have 'write' attribute 

请您参考如下方法:

将比例值写入文件并在启动时读入。这是一种方法(大致)，

CONFIG_FILE = '/path/to/config/file' 
 
root.sclX = ... 
 
try: 
    with open(CONFIG_FILE, 'r') as f: 
        root.sclX.set(int(f.read())) 
except IOError:    # this is what happens if the file doesn't exist 
    pass 
 
... 
root.mainloop() 
 
# this needs to run when your program exits 
with open(CONFIG_FILE, 'w') as f: 
    f.write(str(root.sclX.get())) 

显然，例如，如果您想保存和恢复额外的值，您可以让它更健壮/更复杂/更复杂。