It appears that this bug was already reported: http://bugs.python.org/issue4705
Any chance that it gets in the next 3.0.x bugfix release? Just as a note, if I do: sys.stdout._line_buffering = True, it also works, but doesn't seem right as it's accessing an internal attribute. Note 2: the solution that said to pass 'wb' does not work, because I need the output as text and not binary or text becomes garbled when it's not ascii. Thanks, Fabio On Fri, Dec 19, 2008 at 9:03 PM, Guido van Rossum <gu...@python.org> wrote: > Fror truly unbuffered text output you'd have to make changes to the > io.TextIOWrapper class to flush after each write() call. That's an API > change -- the constructor currently has a line_buffering option but no > option for completely unbuffered mode. It would also require some > changes to io.open() which currently rejects buffering=0 in text mode. > All that suggests that it should wait until 3.1. > > However it might make sense to at least turn on line buffering when -u > or PYTHONUNBUFFERED is given; that doesn't require API changes and so > can be considered a bug fix. > > --Guido van Rossum (home page: http://www.python.org/~guido/) > > > > On Fri, Dec 19, 2008 at 2:47 PM, Antoine Pitrou <solip...@pitrou.net> wrote: >> >>> Well, ``python -h`` still lists it. >> >> Precisely, it says: >> >> -u : unbuffered binary stdout and stderr; also PYTHONUNBUFFERED=x >> see man page for details on internal buffering relating to '-u' >> >> Note the "binary". And indeed: >> >> ./python -u >> Python 3.1a0 (py3k:67839M, Dec 18 2008, 17:56:54) >> [GCC 4.3.2] on linux2 >> Type "help", "copyright", "credits" or "license" for more information. >>>>> import sys >>>>> sys.stdout.buffer.write(b"y") >> y1 >>>>> >> >> I don't know what it would take to enable unbuffered text IO while keeping >> the >> current TextIOWrapper implementation... >> >> Regards >> >> Antoine. >> >> >> _______________________________________________ >> Python-Dev mailing list >> Python-Dev@python.org >> http://mail.python.org/mailman/listinfo/python-dev >> Unsubscribe: >> http://mail.python.org/mailman/options/python-dev/guido%40python.org >> > _______________________________________________ > Python-Dev mailing list > Python-Dev@python.org > http://mail.python.org/mailman/listinfo/python-dev > Unsubscribe: > http://mail.python.org/mailman/options/python-dev/fabiofz%40gmail.com > _______________________________________________ Python-Dev mailing list Python-Dev@python.org http://mail.python.org/mailman/listinfo/python-dev Unsubscribe: http://mail.python.org/mailman/options/python-dev/archive%40mail-archive.com
