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To: python-list@python.org
From: "Frank Millman" <frank@chagford.com>
Subject: Re: Unicode, stdout, and stderr
Date: Tue, 22 Jul 2014 09:06:15 +0200
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"Lele Gaifax" <lele@metapensiero.it> wrote in message 
news:87lhrl28ie.fsf@nautilus.nautilus...
> "Frank Millman" <frank@chagford.com> writes:
>
>> Python 3.4.1 (v3.4.1:c0e311e010fc, May 18 2014, 10:38:22) [MSC v.1600 32 
>> bit
>> (In
>> tel)] on win32
>> Type "help", "copyright", "credits" or "license" for more information.
>>>>> x = '\u2119'
>>>>> x  # this uses stderr
>> '\u2119'
>>>>> print(x)  # this uses stdout
>> Traceback (most recent call last):
>>   File "<stdin>", line 1, in <module>
>>   File "C:\Python34\lib\encodings\cp437.py", line 19, in encode
>>     return codecs.charmap_encode(input,self.errors,encoding_map)[0]
>> UnicodeEncodeError: 'charmap' codec can't encode character '\u2119' in
>> position
>> 0: character maps to <undefined>
>>>>>
>
> No, both statements actually emit noise on the standard output, but the
> former prints the *repr* of the string, the latter tries to encode it to
> CP437, which you console seems to be using.
>

Thanks, Lele, but I don't think that is quite right - see my separate 
response to Steven

Frank