/home/achuth/wfdb-python/wfdb/io/record.py in rdrecord(record_name, sampfrom, sampto, channels, physical, pb_dir, m2s, smooth_frames, ignore_skew, return_res, force_channels, channel_names, warn_empty)
   1230                                                   record.skew, sampfrom, sampto,
   1231                                                   channels, smooth_frames,
-> 1232                                                   ignore_skew)
   1233 
   1234             # Arrange/edit the object fields to reflect user channel

/home/achuth/wfdb-python/wfdb/io/_signal.py in _rd_segment(file_name, dir_name, pb_dir, fmt, n_sig, sig_len, byte_offset, samps_per_frame, skew, sampfrom, sampto, channels, smooth_frames, ignore_skew)
    874                 w_fmt[fn], len(datchannel[fn]), sig_len, w_byte_offset[fn],
    875                 w_samps_per_frame[fn], w_skew[fn], sampfrom, sampto,
--> 876                 smooth_frames)[:, r_w_channel[fn]]
    877 
    878     # Return each sample in signals with multiple samples/frame, without smoothing.

/home/achuth/wfdb-python/wfdb/io/_signal.py in _rd_dat_signals(file_name, dir_name, pb_dir, fmt, n_sig, sig_len, byte_offset, samps_per_frame, skew, sampfrom, sampto, smooth_frames)
    966     else:
    967         sig_data = _rd_dat_file(file_name, dir_name, pb_dir, fmt, start_byte,
--> 968                                  n_read_samples)
    969 
    970     # Finish processing the read data into proper samples if not already

/home/achuth/wfdb-python/wfdb/io/_signal.py in _rd_dat_file(file_name, dir_name, pb_dir, fmt, start_byte, n_samp)
   1230         sig_data = download._stream_dat(file_name, pb_dir, byte_count,
   1231                                         start_byte,
-> 1232                                         np.dtype(DATA_LOAD_TYPES[fmt]))
   1233 
   1234     return sig_data

/home/achuth/wfdb-python/wfdb/io/download.py in _stream_dat(file_name, pb_dir, byte_count, start_byte, dtype)
    152 
    153     # Raise HTTPError if invalid url
--> 154     response.raise_for_status()
    155 
    156     # Convert to numpy array

/usr/local/lib/python3.4/dist-packages/requests/models.py in raise_for_status(self)
    937 
    938         if http_error_msg:
--> 939             raise HTTPError(http_error_msg, response=self)
    940 
    941     def close(self):