human
Solve the following python programming problem given the following code:
def _prepare_tarball(self) : 
    def _read(filename) : 
        f = self._file.extractfile (filename) 
        return f.read () 
self._file = tarfile.open (mode = 'r:*', fileobj = self._fileobj) 
    self._names = _read._file.getnames 
    self._read = _read 

    
    

    Fix the buggy line: self._names = _read._file.getnames
assistant
#Here is Python program to fix the buggy line: self.

self._names = self._file.getnames