Message 142899 - Python tracker

➜

This issue tracker has been migrated to GitHub , and is currently read-only.
For more information, see the GitHub FAQs in the Python's Developer Guide.

Author	skrah
Recipients	pitrou, skrah
Date	2011年08月24日.19:09:57
SpamBayes Score	2.2134955e-05
Marked as misclassified	No
Message-id	<20110824190713.GA23660@sleipnir.bytereef.org>
In-reply-to	<1314211614.4.0.474562959359.issue12834@psf.upfronthosting.co.za>

Content
Antoine Pitrou <report@bugs.python.org> wrote: > That's rather funky. What should the right result be? Basically [5, 4, 3, 2, 1] as bytes: '\x05\x04\x03\x02\x01' Looks like an off-by-one error. I was a bit surprised that tobytes() automatically converts anything to a C-contiguous array. The result can be completely disconnected from the raw memory. [The bug also exists for forward strides.] array([1, 3, 5], dtype=uint64) >>> m = memoryview(y) >>> m.tobytes() '\x03\x00\x00\x00\x00\x00\x00\x00\x05\x00\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00' >>>

Content

Antoine Pitrou <report@bugs.python.org> wrote:
> That's rather funky. What should the right result be?
Basically [5, 4, 3, 2, 1] as bytes:
'\x05\x04\x03\x02\x01'
Looks like an off-by-one error.
I was a bit surprised that tobytes() automatically converts anything
to a C-contiguous array. The result can be completely disconnected
from the raw memory.
[The bug also exists for forward strides.]
array([1, 3, 5], dtype=uint64)
>>> m = memoryview(y)
>>> m.tobytes()
'\x03\x00\x00\x00\x00\x00\x00\x00\x05\x00\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00'
>>>

History
Date	User	Action	Args
2011年08月24日 19:09:59	skrah	set	recipients: + skrah, pitrou
2011年08月24日 19:09:57	skrah	link	issue12834 messages
2011年08月24日 19:09:57	skrah	create

homepage