I feel like I should clarify - not everyone who posted got it wrong, and
I understand there's a side discussion among those who are also
interested/participants in
https://discuss.python.org/t/demoting-the-is-operator-to-avoid-an-identity-crisis/86/
- but there was no of acknowledgement of Eryk
For everyone who managed to reply *hours* after Eryk Sun posted the
correct answer and still get it wrong, here it is again in full.
As a bonus, here's a link to the place where this answer appears in the
documentation:
https://docs.python.org/3/library/ctypes.html#ctypes.py_object
Cheers,
Steve
n Thu, Jan 17, 2019 at 4:51 PM Gregory P. Smith wrote:
>
> I've heard that libraries using ctypes, cffi, or cython code of various sorts
> in the real world wild today does abuse the unfortunate side effect of
> CPython's implementation of id(). I don't have specific instances of this in
>
On 2019-01-18 00:48, Gregory P. Smith wrote:
I've heard that libraries using ctypes, cffi, or cython code of various
sorts in the real world wild today does abuse the unfortunate side
effect of CPython's implementation of id(). I don't have specific
instances of this in mind but trust what
On Fri, Jan 18, 2019 at 11:50 AM Gregory P. Smith wrote:
>
> I've heard that libraries using ctypes, cffi, or cython code of various sorts
> in the real world wild today does abuse the unfortunate side effect of
> CPython's implementation of id(). I don't have specific instances of this in
>
I've heard that libraries using ctypes, cffi, or cython code of various
sorts in the real world wild today does abuse the unfortunate side effect
of CPython's implementation of id(). I don't have specific instances of
this in mind but trust what I've heard: that it is happening.
id() should never
On 1/17/19, Steven D'Aprano wrote:
>
> I understand that the only way to pass the address of an object to
> ctypes is to use that id. Is that intentional?
It's kind of dangerous to pass an object to C without an increment of
its reference count. The proper way is to use a simple pointer of type
On Wed, 16 Jan 2019 at 20:38, Antoine Pitrou wrote:
>
> On Wed, 16 Jan 2019 11:25:04 +0100
> Victor Stinner wrote:
> > I see that the PEP is still a draft. What's the status?
>
> PEP 574 is ready for pronouncement. It's waiting for an authority to
> approve it (or decide on a PEP delegate, who
On Thu, 17 Jan 2019 21:26:06 +1100
Steven D'Aprano wrote:
> Disclaimer: I'm not a ctypes expert, so I might have this completely
> wrong. If so, I apologise for the noise.
>
> The id() function is documented as returning an abstract ID number. In
> CPython, that happens to have been
Disclaimer: I'm not a ctypes expert, so I might have this completely
wrong. If so, I apologise for the noise.
The id() function is documented as returning an abstract ID number. In
CPython, that happens to have been implemented as the address of the
object.
I understand that the only way to
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