_stream.py 文件源码

def ended(self) -> bool:
        try:
            fileno = self._codeio.fileno()
            offset = os.fstat(fileno).st_size
        except io.UnsupportedOperation:
            old_offset = self.offset
            self._codeio.seek(0, io.SEEK_END)
            offset = self._codeio.tell()
            self._codeio.seek(old_offset)
        return self.offset == offset