Thomas Heller <[EMAIL PROTECTED]> wrote:
>
> Fredrik Lundh wrote:
> > Josiah Carlson wrote:
> >
> >> At least for the examples of buffers that I've seen, using the buffer
> >> interface for objects that support it is equivalent to automatically
> >> applying str() to them. This is, strictly speaking, an optimization.
> >
> > >>> a = array.array("i", [1, 2, 3])
> > >>> str(a)
> > "array('i', [1, 2, 3])"
> > >>> str(buffer(a))
> > '\x01\x00\x00\x00\x02\x00\x00\x00\x03\x00\x00\x00'
>
> or:
>
> [EMAIL PROTECTED]:~$ python2.4
> Python 2.4.2 (#2, Sep 30 2005, 22:19:27)
> [GCC 4.0.2 20050808 (prerelease) (Ubuntu 4.0.1-4ubuntu8)] on linux2
> Type "help", "copyright", "credits" or "license" for more information.
> >>> str(buffer(u"abc"))
> 'a\x00\x00\x00b\x00\x00\x00c\x00\x00\x00'
> >>>
Hrm, those are interesting examples. It would seem as though checking
to see if a passed object was a buffer itself, rather than whether it
supported the buffer interface, would be more correct.
- Josiah
_______________________________________________
Python-Dev mailing list
[email protected]
http://mail.python.org/mailman/listinfo/python-dev
Unsubscribe:
http://mail.python.org/mailman/options/python-dev/archive%40mail-archive.com
