archive.py 文件源码

def decompress_bz2(bz2_path, new_path):

    """
    This function decompresses a .bz2 file
    :param bz2_path:
    :param new_path:
    :return:
    """

    # Decompress, create decompressed new file
    with open(new_path, 'wb') as new_file, bz2.BZ2File(bz2_path, 'rb') as file:
        for data in iter(lambda: file.read(100 * 1024), b''):
            new_file.write(data)

# -----------------------------------------------------------------

## This function opens a text file in read-only mode. If a file exists at the specified path, it is simply opened.
# Otherwise, the function looks for a ZIP archive with the same name as the directory in which the file would have
# resided, but with the ".zip" extension added, and it attempts to open a file with the same name from the archive.
# In both cases, the function returns a read-only file-like object that offers sequential access, i.e. it provides
# only the following methods: read(), readline(), readlines(), \_\_iter\_\_(), next().
#