Unicode, stdout, and stderr
lele at metapensiero.it
Tue Jul 22 09:36:10 CEST 2014
"Frank Millman" <frank at chagford.com> writes:
> "Steven D'Aprano" <steve at pearwood.info> wrote in message
> news:53ce0b96$0$29897$c3e8da3$5496439d at news.astraweb.com...
>> I would be surprised if that were the case, but I don't have a Windows
>> box to test it. Try this:
>> import sys
>> print(x, file=sys.stderr) # I expect this will fail
> It does not fail.
Effectively it does not, but for some reason it actually print the
repr() of the string.
>> print(repr(x), file=sys.stdout) # I expect this will succeed
> It fails.
This surprises me as well, why does it fail here?
Traceback ... UnicodeEncodeError ...
On GNU/Linux, I get:
Uhm, it must be related to the fact that on Py3 the repr() of something
is a unicode object too, so the output machinery tries to encode it to
the output encoding.... Still, I miss the difference between stdout and
stderr (both are cp437, accordingly to sys.xxx.encoding).
nickname: Lele Gaifax | Quando vivrò di quello che ho pensato ieri
real: Emanuele Gaifas | comincerò ad aver paura di chi mi copia.
lele at metapensiero.it | -- Fortunato Depero, 1929.
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