打开文件修改并存储

import easygui as g
import os 


file_path = g.fileopenbox(default='F:\')
with open(file_path) as f:
    title = '内容显示'
    file_name = os.path.basename(file_path)
    msg = '文件【%s】的内容显示如下'% file_name
    
    text = f.read()

    new_text = g.textbox(msg,title,text)


    if new_text[:-1] != text:
        msg='检测到文件内容发生改变请选择以下操作：'
        choices = ('覆盖保存','放弃保存','另存为')
        title = '警告'
        choice = g.buttonbox(msg, title, choices)
        if choice == '覆盖保存':
            with open(file_path,'w') as f:
                f.write(new_text[:-1])
        if choice == '另存为':
            
            new_path = g.filesavebox(default='*.txt')
            with open(new_path,'w') as f:
                f.write(new_text[:-1])
            
        if choice == '放弃保存':
            pass