human
Solve the following python programming problem given the following code:
def make_line_iter(stream, limit = None, buffer_size = (10 * 1024)) : 
    "Safely iterates line-based over an input stream.  If the input stream
    is not a :class:`LimitedStream` the `limit` parameter is mandatory.

    This uses the stream's :meth:`~file.read` method internally as opposite
    to the :meth:`~file.readline` method that is unsafe and can only be used
    in violation of the WSGI specification.  The same problem applies to the
    `__iter__` function of the input stream which calls :meth:`~file.readline`
    without arguments.

    If you need line-by-line processing it's strongly recommended to iterate
    over the input stream using this helper function.

    .. versionchanged:: 0.8
       This function now ensures that the limit was reached.

    .. versionadded:: 0.9
       added support for iterators as input stream.

    :param stream: the stream or iterate to iterate over.
    :param limit: the limit in bytes for the stream.  (Usually
                  content length.  Not necessary if the `stream`
                  is a :class:`LimitedStream`.
    :param buffer_size: The optional buffer size.
    " 
    _iter = _make_chunk_iter (stream, limit, buffer_size) 
    first_item = next (_iter, '') 
    if (not first_item) : 
        return 
s = make_literal_wrapper (first_item) 
    empty = s ('') 
    cr = s ('\r') 
    lf = s ('
') 
    crlf = s ('\r
') 
    _iter = chain ((first_item,), _iter) 
    def _iter_basic_lines() : 
        _join = empty.join 
        buffer = [] 
        while 1 : 
            new_data = next (_iter, '') 
            if (not new_data) : 
                break 
new_buf = [] 
            for item in chain (buffer, new_data.splitlines (True)) : 
                new_buf.append (item) 
                if (item and (item [(- 1) :] in crlf)) : 
                    (yield _join (new_buf)) 
                    new_buf = [] 
buffer = new_buf 
if buffer : 
            (yield _join (buffer)) 
previous = empty 
    for item in _iter_basic_lines () : 
        if ((item ==...

    
    

    Fix the buggy line: if ((item == crlf) and (previous [(- 1) :] == cr)) :
assistant
#Here is Python code to fix the buggy line: if ((item == crlf) and (previous [(- 1) :] == cr)) :
.

if ((item == lf) and (previous [(- 1) :] == cr)) :