On Tue, Oct 27, 2020 at 5:23 AM Victor Stinner wrote:
>
> os.get_exec_path() must modify temporarily warnings filters to ignore
> BytesWarning when it looks for 'PATH' (unicode) or b'PATH' (bytes) in
> the 'env' dictionary which may contain unicode or bytes strings.
> Modifying warnings filters im
On Mon, Oct 26, 2020, 4:06 PM Chris Angelico wrote:
> On Tue, Oct 27, 2020 at 10:00 AM Greg Ewing
> wrote:
> >
> > On 27/10/20 8:24 am, Victor Stinner wrote:
> > > I would
> > > rather want to kill the whole concept of "access" time in operating
> > > systems (or just configure the OS to not upd
Hello,
Go channels are indeed very similar to asyncio Queues, with some added
features like channels being closable. (There is also special syntax in the
select statement, `val, ok <- chan`, that will set the `ok` variable to
false if the channel has been closed.) A larger difference, I think, is
On Tue, Oct 27, 2020 at 10:00 AM Greg Ewing wrote:
>
> On 27/10/20 8:24 am, Victor Stinner wrote:
> > I would
> > rather want to kill the whole concept of "access" time in operating
> > systems (or just configure the OS to not update it anymore). I guess
> > that it's really hard to make it effici
On 27/10/20 8:24 am, Victor Stinner wrote:
I would
rather want to kill the whole concept of "access" time in operating
systems (or just configure the OS to not update it anymore). I guess
that it's really hard to make it efficient and accurate at the same
time...
Also it's kind of weird that ju
On 10/26/20, Victor Stinner wrote:
> Le lun. 19 oct. 2020 à 13:50, Steve Dower a écrit
> :
>> Feel free to file a bug, but we'll likely only add a vague note to the
>> docs about how Windows works here rather than changing anything.
>
> I agree that this surprising behavior can be documented. Att
`raise NotImplementedError`
https://docs.python.org/3/library/exceptions.html#NotImplementedError I
think would be the canonical solution.
E
On Mon, 26 Oct 2020 at 20:34, Victor Stinner wrote:
> If you use the unittest module, I suggest you to use self.fail() instead:
> it is standard. Moreover
Hi,
There is the __debug__ builtin variable which is equal to True by
default, but is equal to False when Python is run with the -O command
line option.
The compiler removes dead code when -O is used. Example:
$ cat x.py
def func():
if __debug__: print("debug")
import dis
dis.dis(func)
# "
If you use the unittest module, I suggest you to use self.fail() instead:
it is standard. Moreover, you can specify a message.
https://docs.python.org/dev/library/unittest.html#unittest.TestCase.fail
Victor
Le ven. 23 oct. 2020 à 21:36, Umair Ashraf a écrit :
> Hello
>
> Can I suggest a feature
Le sam. 24 oct. 2020 à 15:13, Christian Heimes a écrit :
> In my experience it would be useful to keep the bytes warning for
> implicit representation of bytes in string formatting. It's still a
> common source of issues in code.
IMO it's not a big deal to investigate such bugs without the -b / -
Hi,
Which operations are impacted by -b and -bb? str == bytes, bytes ==
str, dict lookup using str or bytes keys? 'unicode' < b'bytes' always
raises a TypeError.
Le sam. 24 oct. 2020 à 05:20, Inada Naoki a écrit :
> To avoid BytesWarning, the compiler needs to do some hack when they
> need to st
On 10/26/2020 11:42 AM, Matti Picus wrote:
On 10/21/20 2:38 PM, Matti Picus wrote:
[0] https://speed.pypy.org/comparison/
Just as a follow up: the front page of speed.pypy.org now shows the
latest pypy 3.6 vs cpython 3.6.7.
I just clicked the link and there is 3.7.6, not 3.6.7. But why
Le lun. 19 oct. 2020 à 13:50, Steve Dower a écrit :
> Feel free to file a bug, but we'll likely only add a vague note to the
> docs about how Windows works here rather than changing anything.
I agree that this surprising behavior can be documented. Attempting to
provide accurate access time in os
Hi,
Le dim. 25 oct. 2020 à 15:36, Ma Lin a écrit :
> Some code needs to maintain an output buffer that has an unpredictable size.
> Such as bz2/lzma/zlib modules, _PyBytesWriter/_PyUnicodeWriter.
>
> In current code, when the output buffer grows, resizing will cause
> unnecessary memcpy().
>
>
On Tue, Oct 27, 2020 at 2:42 AM Matti Picus wrote:
>
>
> On 10/21/20 2:38 PM, Matti Picus wrote:
> > On 10/21/20 20:42:02 +1100 Chris Angelico wrote:
> >
> >> When I go looking for PyPy performance stats, everything seems to be
> >> Python 2.7. Is there anywhere that compares PyPy3 to CPython 3.6
On 10/21/20 2:38 PM, Matti Picus wrote:
On 10/21/20 20:42:02 +1100 Chris Angelico wrote:
When I go looking for PyPy performance stats, everything seems to be
Python 2.7. Is there anywhere that compares PyPy3 to CPython 3.6 (or
whichever specific version)? Or maybe it's right there on
https://s
It's true that asyncio.wait provides the tools that you need, but it's a
bit clunky to use correctly.
Maybe would be something along the lines of:
--
queue1 = asyncio.Queue()
queue2 = asyncio.Queue()
...
get1 = asyncio.create_task(queue1.get())
get2 = asyncio.create_task(queue2.get())
await a
24.10.20 06:19, Inada Naoki пише:
> To avoid BytesWarning, the compiler needs to do some hack when they
> need to store bytes and str constants in one dict or set.
> BytesWarning has maintenance costs. It is not huge, but significant.
>
> When can we remove it? My idea is:
>
> 3.10: Deprecate the
26.10.20 10:10, Inada Naoki пише:
> Of course, there are some runtime costs too.
>
> https://github.com/python/cpython/blob/fb5db7ec58624cab0797b4050735be865d380823/Modules/_functoolsmodule.c#L802
> https://github.com/python/cpython/blob/fb5db7ec58624cab0797b4050735be865d380823/Objects/codeobject.
On Mon, Oct 26, 2020 at 4:35 PM Senthil Kumaran wrote:
>
> On Sat, Oct 24, 2020 at 6:18 AM Christian Heimes wrote:
>>
>> In my experience it would be useful to keep the bytes warning for
>> implicit representation of bytes in string formatting. It's still a
>> common source of issues in code.
>
>
On Sat, Oct 24, 2020 at 6:18 AM Christian Heimes
wrote:
>
>
> In my experience it would be useful to keep the bytes warning for
> implicit representation of bytes in string formatting. It's still a
> common source of issues in code.
>
I am with Christian here. Still notice a possibility of peopl
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