如何使用python从目录中检测和分离损坏/无法读取的PDF和受密码保护的PDF？

import PyPDF2

def is_pdf_corrupted(file_path):
    try:
        with open(file_path, 'rb') as file:
            PyPDF2.PdfFileReader(file)
        return False
    except PyPDF2.utils.PdfReadError:
        return True

def is_pdf_password_protected(file_path):
    try:
        with open(file_path, 'rb') as file:
            pdf_reader = PyPDF2.PdfFileReader(file)
            if pdf_reader.isEncrypted:
                return True
            else:
                return False
    except PyPDF2.utils.PdfReadError:
        return False

def separate_pdfs(directory):
    for file_name in os.listdir(directory):
        file_path = os.path.join(directory, file_name)
        if is_pdf_corrupted(file_path):
            # 分离损坏/无法读取的PDF
            shutil.move(file_path, 'corrupted_pdfs')
        elif is_pdf_password_protected(file_path):
            # 分离受密码保护的PDF
            shutil.move(file_path, 'password_protected_pdfs')