[Python-Dev] Crazy idea for str.join

[Edward Loper]

Josiah Carlson wrote:
> [...] get str.join to support objects which
> implement the buffer interface as one of the items in the sequence?
> 
> Something like:
>     
>     y = 'hello world'
>     buf1 = buffer(y, 0, 5)
>     buf2 = buffer(y, 6)
>     print ''.join([buf1, buf2])
> 
> should print "helloworld"

This is incompatible with the recent proposal making str.join 
automatically str-ify its arguments.  i.e.:

   ''.join(['a', 12, 'b']) -> 'a12b'.

I don't feel strongly about either proposal, I just thought I'd point 
out that they're mutually exclusive.

-Edward