On Wed, 15 Jan 2014, Antoine Pitrou wrote:
On Wed, 15 Jan 2014 15:47:43 +0000 (UTC)
Neil Schemenauer <n...@arctrix.com> wrote:
Objects that implement __str__ can also implement __bytes__ if they
can guarantee that ASCII characters are always returned, no matter
what the *value*
I think that's a slippery slope. __bytes__ should mean that the object
has a well-known bytes equivalent or encoding, not that its __str__
happens to be pure ASCII.
+1
(for example, it would be fine for a HTTP message class to define a
__bytes__ method)
Also, consider that if e.g. float had a __bytes__ method, then
bytes(2.0) would start returning b'2.0', while bytes(2) would still
need to return b'\x00\x00'.
Not actually suggesting the following for a number of reasons including
but not limited to the consistency of floating point formats across
different implementations, but it would make more sense for bytes (2.0) to
return the 8-byte IEEE representation than for it to return the ASCII
encoding of the decimal representation of the number.
Isaac Morland CSCF Web Guru
DC 2619, x36650 WWW Software Specialist
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