On 11/1/07, Guido van Rossum <[EMAIL PROTECTED]> wrote:
> Currently (in 3.0), "".join(<seq>) automatically applies str() to the
> items of <seq>, *except* if the item is a bytes instance -- then it
> raises a TypeError. Is that proper behavior? The alternative is to
> uniformly apply str(), which for bytes returns a string of the form
> "b'...'" or "buffer(b'...')" (depending on whether the bytes are
> immutable or not). Given that we killed the exception for "" == b""
> earlier, I'm tempted to remove the exception. Any opinions to the
> contrary?

I say all or nothing; uniformly apply str and duck typing or only
accept str objects.  For transition reasons the latter would probably
work out nicer than the former.  But for purity I prefer applying
str().

-Brett
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