Python 3.0 automatic decoding of UTF16

[Johannes Bauer]

John Machin schrieb:
> On Dec 6, 5:36 am, Johannes Bauer <dfnsonfsdu... at gmx.de> wrote:
>> So UTF-16 has an explicit EOF marker within the text? I cannot find one
>> in original file, only some kind of starting sequence I suppose
>> (0xfeff). The last characters of the file are 0x00 0x0d 0x00 0x0a,
>> simple \r\n line ending.
> 
> Sorry, *WRONG*. It ends in 00 0d 00 0a 00. The file is 1559 bytes
> long, an ODD number, which shouldn't happen with utf16.  The file is
> stuffed. Python 3.0 has a bug; it should give a meaningful error
> message.

Yes, you are right. I fixed the file, yet another error pops up
(http://www.file-upload.net/download-1299688/2008_12_05_Handy_Backup.txt.html):

Traceback (most recent call last):
  File "./modify.py", line 12, in <module>
    a = AddressBook("2008_12_05_Handy_Backup.txt")
  File "./modify.py", line 7, in __init__
    line = f.readline()
  File "/usr/local/lib/python3.0/io.py", line 1807, in readline
    while self._read_chunk():
  File "/usr/local/lib/python3.0/io.py", line 1556, in _read_chunk
    self._set_decoded_chars(self._decoder.decode(input_chunk, eof))
  File "/usr/local/lib/python3.0/io.py", line 1293, in decode
    output = self.decoder.decode(input, final=final)
  File "/usr/local/lib/python3.0/codecs.py", line 300, in decode
    (result, consumed) = self._buffer_decode(data, self.errors, final)
  File "/usr/local/lib/python3.0/encodings/utf_16.py", line 69, in
_buffer_decode
    return self.decoder(input, self.errors, final)
UnicodeDecodeError: 'utf16' codec can't decode byte 0x0a in position 0:
truncated data

File size is 1630 bytes - so this clearly cannot be.

Regards,
Johannes

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