Python代码执行shutil操作遇Permission Denied错误求助

运行以下Python代码时，即便以管理员身份运行且提前检查了权限，仍持续收到“Permission Denied”错误，请求排查解决：

import os
import shutil
import tkinter as tk
from tkinter import filedialog
import zipfile

root = tk.Tk()
root.withdraw()  

starting_zip_file = filedialog.askopenfilename()

if starting_zip_file:
    print(f"Selected file: {starting_zip_file}")
else:
    print("No file selected")
    exit(0)

destination_folder = r'C:\Users\user\Downloads\folder1'
copy_folder = r'C:\Users\user\Downloads\folder2'

parent_folder1 = destination_folder

new_folder_name = input("Enter the name of the new folder: ")


destination_path = os.path.join(parent_folder1, new_folder_name)

if not os.path.exists(destination_path):
    os.mkdir(destination_path)
    print(f"Folder '{new_folder_name}' created in '{parent_folder1}'.")
else:
    print(f"Folder '{new_folder_name}' already exists in '{parent_folder1}'.")

parent_folder2 = copy_folder
temp_folder = 'TEMP'
temp_folder_path = os.path.join(parent_folder2, temp_folder)

if not os.path.exists(temp_folder_path):
    os.mkdir(temp_folder_path)
    print(f"Folder 'TEMP' created in '{parent_folder2}'.")
else:
    print(f"Folder 'TEMP' already exists in '{parent_folder2}'.")

try:
    shutil.move(starting_zip_file, destination_path)
    print(f"File '{starting_zip_file}' moved")
except FileNotFoundError:
    print(f"File '{starting_zip_file}' not found in the source folder.")
except PermissionError:
    print(f"Permission denied for file '{starting_zip_file}'. Check permissions.")
except Exception as e:
    print(f"An error occurred while moving file '{starting_zip_file}': {e}")

try:
    shutil.copyfile(destination_path, temp_folder_path)
    print(f"File '{starting_zip_file}' copied to 'TEMP' folder.")
except FileNotFoundError:
    print(f"File '{starting_zip_file}' not found in the destination folder.")
except PermissionError:
    print(f"Permission denied for file '{starting_zip_file}'. Check permissions.")
except Exception as e:
    print(f"An error occurred while copying file '{starting_zip_file}': {e}")

问题排查与修复方案 #

• 文件被其他进程占用
  选中的ZIP文件可能正被资源管理器预览、解压软件等程序占用，导致无法修改。关闭所有可能访问该文件的程序后重试，也可以借助psutil模块检测占用进程：

  import psutil
  
  def is_file_locked(file_path):
      for proc in psutil.process_iter(['pid', 'name', 'open_files']):
          try:
              for item in proc.open_files():
                  if file_path == item.path:
                      return True, proc.name
          except (psutil.NoSuchProcess, psutil.AccessDenied):
              continue
      return False, None
  
  locked, proc_name = is_file_locked(starting_zip_file)
  if locked:
      print(f"File is locked by process: {proc_name}")
  

• shutil.copyfile参数错误
  代码中shutil.copyfile(destination_path, temp_folder_path)存在逻辑错误：destination_path是文件夹路径，但shutil.copyfile要求源和目标必须是完整文件路径，不能是文件夹。修改复制逻辑：

  try:
      # 获取原文件名，拼接目标文件的完整路径
      file_name = os.path.basename(starting_zip_file)
      source_copy_path = os.path.join(destination_path, file_name)
      target_copy_path = os.path.join(temp_folder_path, file_name)
      
      shutil.copyfile(source_copy_path, target_copy_path)
      print(f"File '{starting_zip_file}' copied to 'TEMP' folder.")
  except FileNotFoundError:
      print(f"File '{source_copy_path}' not found in the destination folder.")
  except PermissionError:
      print(f"Permission denied when copying file '{source_copy_path}'.")
  except Exception as e:
      print(f"An error occurred while copying file: {e}")
  

• NTFS权限或UAC限制
  即使以管理员身份运行，Windows的NTFS权限可能限制了写入操作。右键目标文件夹（folder1、folder2）→属性→安全→检查当前用户是否拥有写入/完全控制权限，若没有则添加对应权限。

• 目标文件夹异常
  若TEMP文件夹或新建的目标文件夹被标记为只读，或被系统锁定，尝试删除现有文件夹后重新创建，或更换其他测试路径（比如D:\test）验证是否路径本身存在问题。

修改后的完整代码 #

import os
import shutil
import tkinter as tk
from tkinter import filedialog
import zipfile

root = tk.Tk()
root.withdraw()  

starting_zip_file = filedialog.askopenfilename()

if starting_zip_file:
    print(f"Selected file: {starting_zip_file}")
else:
    print("No file selected")
    exit(0)

destination_folder = r'C:\Users\user\Downloads\folder1'
copy_folder = r'C:\Users\user\Downloads\folder2'

parent_folder1 = destination_folder

new_folder_name = input("Enter the name of the new folder: ")

destination_path = os.path.join(parent_folder1, new_folder_name)

if not os.path.exists(destination_path):
    os.mkdir(destination_path)
    print(f"Folder '{new_folder_name}' created in '{parent_folder1}'.")
else:
    print(f"Folder '{new_folder_name}' already exists in '{parent_folder1}'.")

parent_folder2 = copy_folder
temp_folder = 'TEMP'
temp_folder_path = os.path.join(parent_folder2, temp_folder)

if not os.path.exists(temp_folder_path):
    os.mkdir(temp_folder_path)
    print(f"Folder 'TEMP' created in '{parent_folder2}'.")
else:
    print(f"Folder 'TEMP' already exists in '{parent_folder2}'.")

# 移动文件逻辑
try:
    shutil.move(starting_zip_file, destination_path)
    print(f"File '{starting_zip_file}' moved to '{destination_path}'")
except FileNotFoundError:
    print(f"File '{starting_zip_file}' not found in the source folder.")
except PermissionError:
    print(f"Permission denied for file '{starting_zip_file}'. Check if the file is in use.")
except Exception as e:
    print(f"An error occurred while moving file: {e}")

# 修复后的复制文件逻辑
try:
    file_name = os.path.basename(starting_zip_file)
    source_copy_path = os.path.join(destination_path, file_name)
    target_copy_path = os.path.join(temp_folder_path, file_name)
    
    shutil.copyfile(source_copy_path, target_copy_path)
    print(f"File '{file_name}' copied to '{temp_folder_path}'")
except FileNotFoundError:
    print(f"File '{source_copy_path}' not found in the destination folder.")
except PermissionError:
    print(f"Permission denied when copying file '{source_copy_path}'. Check folder permissions.")
except Exception as e:
    print(f"An error occurred while copying file: {e}")

内容的提问来源于stack exchange，提问作者user22538038