[I18n-sig] Transparent Encoding

[Martin v. Loewis]

> > An EncodedFile is not suitable since it has byte strings on both ends,
> > and Unicode strings only inside.
> 
> EncodedFile seems to work as I ask if I pass it the encoding name as
> "unicode-internal". 

What do you mean, "seems to work". The encoding "unicode-internal"
still produces byte strings, e.g.

>>> s=u"Hallo"
>>> s.encode("unicode-internal")
'H\x00a\x00l\x00l\x00o\x00'
>>> s
u'Hallo'

A unicode-internal encoded byte string is *not* the same thing as a
Unicode string.

> Furthermore, code that does that is much simpler
> than code that looks up the codec manually. I'm not a big fan of those
> codec tuples.
> 
> Current:
> 
> writer = codecs.lookup("utf-8")[3]
> stream = writer(fileobj)
> 
> Proposed:
> 
> codecs.EncodedFile(fileobj, None, "utf-8")

-0.

Regards,
Martin