print() and unicode strings (python 3.1)

[7stud]

On Aug 25, 6:34 am, Nobody <nob... at nowhere.com> wrote:
> The underlying OS primitive can only handle bytes. If you read or write a
> (unicode) string, Python needs to know which encoding is used. For Python
> file objects created by the user (via open() etc), you can specify the
> encoding; for those created by the runtime (e.g. sys.stdin), Python uses
> the locale's LC_CTYPE category to select an encoding.
>
> Data written to or read from text streams is encoded or decoded using the
> stream's encoding. Filenames are encoded and decoded using the
> filesystem encoding (sys.getfilesystemencoding()). Anything else uses the
> default encoding (sys.getdefaultencoding()).
>
> In Python 3, text streams are handled using io.TextIOWrapper:
>
>        http://docs.python.org/3.1/library/io.html#text-i-o
>
> This implements a stream which can read and/or write text data on top of
> one which can read and/or write binary data. The sys.std{in,out,err}
> streams are instances of TextIOWrapper. You can get the underlying
> binary stream from the "buffer" attribute, e.g.:
>
>         sys.stdout.buffer.write(b'hello world\n')
>
> If you need to force a specific encoding (e.g. if the user has specified
> an encoding via a command-line option), you can detach the existing
> wrapper and create a new one, e.g.:
>
>         sys.stdout = io.TextIOWrapper(sys.stdout.detach(), encoding = new_encoding)

Thanks for the details.