On Thu, Jan 5, 2017 at 11:28 PM, Hans-Peter Jansen wrote:
> Leaves the question, how stable this "interface" is?
> Accessing _objects here belongs to voodoo programming practices of course, but
> the magic is locally limited to just two lines of code, which is acceptable in
> order to get this con
On 2017-01-05 7:11 PM, INADA Naoki wrote:
bytes.frombuffer(x) is bytes(memoryview(x)) or memoryview(x).tobytes().
There is pitfall: memoryview should be closed.
So b = bytes.frombuffer(x) is:
with memoryview(x) as m:
b = bytes(m)
# or b = m.tobytes()
Thinking more about this, an
>
> bytes.frombuffer(x) is bytes(memoryview(x)) or memoryview(x).tobytes().
>
There is pitfall: memoryview should be closed.
So b = bytes.frombuffer(x) is:
with memoryview(x) as m:
b = bytes(m)
# or b = m.tobytes()
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On Freitag, 6. Januar 2017 00:28:37 Hans-Peter Jansen wrote:
> Hi Eryk,
>
> This is exactly, what I was after:
>
> @contextmanager
> def cstructmap(cstruct, mm, offset = 0):
> # resize the mmap (and backing file), if structure exceeds mmap size
> # mmap size must be aligned to mmap.PAGESI
Hi Eryk,
On Donnerstag, 5. Januar 2017 15:30:33 eryk sun wrote:
>
> > manager introduce a layer of indirection:
> I think that's the best you can do with the current state of ctypes.
>
> from_buffer was made safer in Python 3 by ensuring it keeps a
> memoryview reference in the _objects attribut
On 05.01.17 22:37, Alexander Belopolsky wrote:
I propose the following:
1. For 3.6, restore and document 3.5 behavior. Recommend that 3rd party
types that are both integer-like and buffer-like implement their own
__bytes__ method to resolve the bytes(x) ambiguity.
The __bytes__ method is used
On Wed, Oct 12, 2016 at 12:08 AM, INADA Naoki
wrote:
>
> Now I'm sure about bytes.frombuffer() is worth enough.
I would like to revive this thread (taking a liberty to shorten the subject
line.)
The issue of how the bytes(x) constructor should behave when given objects
of various types have come
On 01/05/2017 11:04 AM, Berker Peksağ wrote:
> On Thu, Jan 5, 2017 at 2:27 AM, INADA Naoki wrote:
>> Hi.
>>
>> IRC #python-dev channel is nice place to know what happens recently.
>> But I can't log in always because I use only laptop PC.
>>
>> I found BotBot.me seems nice IRC log service and used
On Thu, Jan 5, 2017 at 2:37 AM, Nick Coghlan wrote:
> On 5 January 2017 at 10:28, Hans-Peter Jansen wrote:
>> In order to get this working properly, the ctypes mapping needs a method to
>> free the mapping actively. E.g.:
>>
>> @contextmanager
>> def map_struct(m, n):
>> m.resize(n * mmap.PAG
Hi Nick,
On Donnerstag, 5. Januar 2017 12:37:20 Nick Coghlan wrote:
> I don't know ctypes well enough myself to comment on the idea of
> offering fully deterministic cleanup, but the closest you could get to
> that without requiring a change to ctypes is to have the context
> manager introduce a l
On 05.01.17 06:43, Terry Reedy wrote:
On 1/1/2017 6:40 PM, Serhiy Storchaka wrote:
On 02.01.17 01:23, Terry Reedy wrote:
There are several recent question on Stackoverflow about
SystemError: new style getargs format but argument is not a tuple
[snip]
Resulting from using 3rd party packages.
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