[Python-3000] Automatically invoking str() in str.join()

[Tim Hochberg]

Barry Warsaw wrote:
> On Thu, 2006-04-27 at 10:08 -0700, Aahz wrote:
 >> -0
>> 
>> 
>>While I hate the way it looks, I never have gotten mixed up about the
>>order of arguments since switching to ''.join(l).

Me too on all counts including the -0.

> 
> 
> Which is why
> 
> EMPTYSTRING = ''
> 
> ...
> 
> EMPTYSTRING.join(seq)
> 
> looks much better.  But hey, yeah, a join() builtin would be fine if it
> took the string arg first, so that
> 
> ''.join(seq) == join('', seq)
> 

Isn't that the same as str.join?

 >>> str.join(', ', 'abcdefg')
'a, b, c, d, e, f, g'

In which case why would we need a builtin?

-tim