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To: python-list@python.org
From: Terry Reedy <tjreedy@udel.edu>
Subject: Re: Unicode, stdout, and stderr
Date: Tue, 22 Jul 2014 13:38:44 -0400
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On 7/22/2014 2:18 AM, Frank Millman wrote:
> Hi all
>
> This is not important, but I would appreciate it if someone could expla=
in
> the following, run from cmd.exe on Windows Server 2003 -
>
> C:\>python
> Python 3.4.1 (v3.4.1:c0e311e010fc, May 18 2014, 10:38:22) [MSC v.1600 3=
2 bit
> (In
> tel)] on win32
> Type "help", "copyright", "credits" or "license" for more information.
>>>> x =3D '\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

On Windows, at least, the Idle gui generally handles unicode (certainly=20
the BMP) much better than the interpreter command prompt interface.

 >>> x =3D '\u2119'
 >>> x
'=E2=84=99'
 >>> print(x)
=E2=84=99

--=20
Terry Jan Reedy