[Python-Dev] PEP 385: the eol-type issue

M.-A. Lemburg mal at egenix.com
Thu Aug 6 10:31:04 CEST 2009

Neil Hodgson wrote:
> Glenn Linderman:
>> and perhaps other things (and
>> are there new Unicode control characters that could be used for line
>> endings?),
>    Unicode includes Line Separator U+2028 and Paragraph Separator
> U+2029 but they are rarely supported and very rarely used. They are a
> pain to work with since they are 3 byte sequences in UTF-8. Visual
> Studio does support them.
>    Python does not currently support these line separators such as in
> this example which only reads 2 lines rather than 3:
> with open("x.txt", "wb") as f:
> 	f.write("a\nb\u2029c\n".encode('utf-8'))
> with open("x.txt", "r") as f:
> 	n = 1
> 	for l in f.readlines():
> 		print(n, repr(l))
> 		n += 1

Please file a bug report for this. f.readlines() (or rather
the io layer) should be using Py_UNICODE_ISLINEBREAK(ch)
for detecting line break characters.

Marc-Andre Lemburg

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