tarfile.py 文件源码

def init(self):
        import bz2
        self.pos = 0
        if self.mode == "r":
            self.bz2obj = bz2.BZ2Decompressor()
            self.fileobj.seek(0)
            self.buf = b""
        else:
            self.bz2obj = bz2.BZ2Compressor()