command.py

import os  
 
verbose = True  

class RenameFile:
 
    def __init__(self, src, dest):  
        self.src = src 
        self.dest = dest
        
    def execute(self):  
        if verbose:  
            print(f"[renaming '{self.src}' to '{self.dest}']")  
        os.rename(self.src, self.dest)  

    def undo(self):  
        if verbose:  
            print(f"[renaming '{self.dest}' back to '{self.src}']")  
        os.rename(self.dest, self.src) 

class CreateFile:

    def __init__(self, path, txt='hello world\n'):  
        self.path = path 
        self.txt = txt 

    def execute(self):  
        if verbose:  
            print(f"[creating file '{self.path}']")  
        with open(self.path, mode='w', encoding='utf-8') as out_file:  
            out_file.write(self.txt)
            
    def undo(self):  
        delete_file(self.path)
        
class ReadFile:

    def __init__(self, path):  
        self.path = path 

    def execute(self):  
        if verbose:  
            print(f"[reading file '{self.path}']")  
        with open(self.path, mode='r', encoding='utf-8') as in_file:  
            print(in_file.read(), end='')
       
def delete_file(path): 
    if verbose: 
        print(f"deleting file {path}")
    os.remove(path) 
       
def main():

    orig_name, new_name = 'file1', 'file2'  
 
    commands = (CreateFile(orig_name), 
            ReadFile(orig_name),  
            RenameFile(orig_name, new_name))
 
    [c.execute() for c in commands]
    
    answer = input('reverse the executed commands? [y/n] ')  
 
    if answer not in 'yY': 
        print(f"the result is {new_name}")  
        exit()  
 
    for c in reversed(commands):  
        try:  
            c.undo()  
        except AttributeError as e:  
            print("Error", str(e))
 
if __name__ == "__main__":  
    main()