Python处理隐藏Zip文件：权限管理与最佳实践

from zipfile import ZipFile
from ruamel.std.zipfile import delete_from_zip_file

zip_file = ZipFile("secret.zip") # 文件句柄可能未被及时关闭
# ... 其他操作
# delete_from_zip_file("secret.zip", "test.txt")

from zipfile import ZipFile
from ruamel.std.zipfile import delete_from_zip_file

zip_file_path = "secret.zip"

# 确保ZipFile对象在使用完毕后关闭
with ZipFile(zip_file_path, 'r') as zip_file:
    file_list = [file.filename for file in zip_file.filelist]
    print(f"Zip file contents: {file_list}")

if "test.txt" in file_list:
    try:
        # 尝试删除文件
        delete_from_zip_file(zip_file_path, "test.txt")
        print(f"Successfully deleted 'test.txt' from {zip_file_path}")
    except PermissionError as e:
        print(f"PermissionError: {e}. Attempting to resolve...")
    except Exception as e:
        print(f"An unexpected error occurred: {e}")

import os
import stat

zip_file_path = "secret.zip"

def remove_readonly(file_path):
    if os.path.exists(file_path):
        # 检查是否为只读
        if not os.access(file_path, os.W_OK):
            print(f"'{file_path}' is read-only. Attempting to remove read-only attribute.")
            try:
                # 移除只读属性 (Windows: S_IWRITE)
                os.chmod(file_path, stat.S_IWRITE)
                print(f"Successfully removed read-only attribute from '{file_path}'.")
            except OSError as e:
                print(f"Error removing read-only attribute: {e}")
                return False
    return True

# 在尝试删除前调用
if remove_readonly(zip_file_path):
    # ... 你的删除代码 ...
    pass

import zipfile
import os

def delete_file_from_zip(zip_path, file_to_delete):
    """
    从Zip文件中删除指定文件，通过创建一个新的Zip文件实现。
    """
    temp_zip_path = zip_path + ".temp"

    try:
        with zipfile.ZipFile(zip_path, 'r') as zin:
            with zipfile.ZipFile(temp_zip_path, 'w', zipfile.ZIP_DEFLATED) as zout:
                for item in zin.infolist():
                    if item.filename != file_to_delete:
                        zout.writestr(item, zin.read(item.filename))

        # 替换原始Zip文件
        os.remove(zip_path)
        os.rename(temp_zip_path, zip_path)
        print(f"Successfully deleted '{file_to_delete}' from '{zip_path}'.")
        return True
    except FileNotFoundError:
        print(f"Error: Zip file '{zip_path}' not found.")
        return False
    except PermissionError as e:
        print(f"PermissionError during zip file modification: {e}")
        print("Please ensure you have write permissions to the zip file and its directory.")
        # 如果临时文件创建了，但替换失败，尝试清理
        if os.path.exists(temp_zip_path):
            os.remove(temp_zip_path)
        return False
    except Exception as e:
        print(f"An unexpected error occurred: {e}")
        if os.path.exists(temp_zip_path):
            os.remove(temp_zip_path)
        return False

# 示例使用
zip_file_path = "secret.zip"
file_to_remove = "test.txt"

# 确保文件存在且可写 (可选，但推荐)
if os.path.exists(zip_file_path):
    # 尝试移除只读属性 (如果适用)
    # remove_readonly(zip_file_path) # 调用上面定义的函数

    # 执行删除操作
    delete_file_from_zip(zip_file_path, file_to_remove)
else:
    print(f"Zip file '{zip_file_path}' does not exist.")