如何从Python中的.dat文件中提取文件？

Question

如何使用 Python 将 .dat 文件中包含的文件提取到文件夹位置？

我尝试使用解压缩功能：

import zipfile
import os 

for file in os.listdir('directory'):
    if file.endswith(".dat"):
        file = 'directory' + file
        with zipfile.ZipFile(file,'r') as zip_ref:
            zip_ref.extractall(file)

但是这是不允许的，因为 .dat 文件不是 .zip 文件。

Answer 1

我设法从 .dat 中提取 .tar 文件，然后使用以下函数提取 .tar 文件：

def extract_files_from_dat(dat_file_path, output_directory):
# Open the .dat file for reading in binary mode
with open(dat_file_path, 'rb') as dat_file:
    # Read the contents of the .dat file
    dat_contents = dat_file.read()

    # Assuming the .tar file is embedded within the .dat file,
    # you'll need to extract it first before extracting its contents
    # Here, we'll assume the .tar file starts at the beginning of the .dat file
    # You may need to adjust this if the .tar file is located elsewhere within the .dat file

    # Create a BytesIO object to simulate a file-like object from the bytes of the .dat file
    from io import BytesIO
    dat_bytesio = BytesIO(dat_contents)

    # Open the BytesIO object as a tarfile
    with tarfile.open(fileobj=dat_bytesio, mode='r') as tar:
        # Extract the contents of the tar file to the output directory
        tar.extractall(output_directory)