On Wednesday, 7 March 2018 06:43:10 UTC, Ooomzay wrote:
> On Tuesday, 6 March 2018 14:12:38 UTC, Peter Otten wrote:
> > Chris Angelico wrote:
> >
> > > On Tue, Mar 6, 2018 at 10:04 AM, Steven D'Aprano
> > > wrote:
> > >> # Later.
> > >> if __name__ = '__main__':
> > >> # Enter the Kingdom o
On Tuesday, 6 March 2018 14:12:38 UTC, Peter Otten wrote:
> Chris Angelico wrote:
>
> > On Tue, Mar 6, 2018 at 10:04 AM, Steven D'Aprano
> > wrote:
> >> # Later.
> >> if __name__ = '__main__':
> >> # Enter the Kingdom of Nouns.
> >
> > Don't you need a NounKingdomEnterer to do that for you?
On Tue, 06 Mar 2018 23:03:15 -0500, Andrew Z wrote:
> Hello,
> with 3.6 and latest greatest lxml:
>
> from lxml import etree
>
> tree = etree.parse('Sample.xml')
> etree.register_namespace('','http://www.example.com')
> it seems to not be happy with the empty tag . But i'm not sure why and
> h
Hello,
with 3.6 and latest greatest lxml:
from lxml import etree
tree = etree.parse('Sample.xml')
etree.register_namespace('','http://www.example.com')
causes:
Traceback (most recent call last):
File "/home/az/Work/flask/tutorial_1/src/xml_oper.py", line 16, in
etree.register_namespace('
On 3/6/2018 6:00 PM, Jeremy Jamar St. Julien wrote:
Whenever I try to open the python shell it says IDLE’s subprocess didn’t make a
connection.
You must be referring to IDLE's GUI Shell, not Python's normal console
text (TUI?) shell or REPL.
IDLE normally runs its GUI in one process and you
Whenever I try to open the python shell it says IDLE’s subprocess didn’t make a
connection. Everything worked fine yesterday and I haven’t done anything I
think would cause this problem. Any way to fix this? I’ve tried repairing and
redownloading
--
https://mail.python.org/mailman/listinfo/pyth
On Tue, 06 Mar 2018 14:09:53 -0800, Ooomzay wrote:
> Unfortunately, despite having conquered it, without a _guarantee_ of
> this behaviour from the language, or at least one mainstream
> implementation, I will not invest in python again.
Oh well, so sad. See you later.
--
Steve
--
https://ma
On Wed, Mar 7, 2018 at 9:09 AM, Ooomzay wrote:
>> I'm not trying to dissuade you from using RAII in your own applications,
>> if it works for you, great.
>
> Unfortunately, despite having conquered it, without a _guarantee_ of this
> behaviour from the language, or at least one mainstream implemen
Sébastien Boisgérault schreef op 6/03/2018 10:23:
I had a look at the AIS message format from your link(https://en.wikipedia.org/wiki/Automatic_identification_system#Message_format) and this seems to be a nice use case; all the data components seem to be nicely aligned on the byte boundary ... unt
On Monday, 5 March 2018 23:06:53 UTC, Steven D'Aprano wrote:
> On Mon, 05 Mar 2018 09:22:33 -0800, Ooomzay wrote:
> [...]
> > If you would like to have a shot at coding this without RAII, but
> > preserving the OO design, you will find that it is considerably
> > simpler than the with/context man
Chris Angelico wrote:
> On Wed, Mar 7, 2018 at 2:12 AM, Kirill Balunov
> wrote:
>>
>>
>> 2018-03-06 17:55 GMT+03:00 Chris Angelico :
>>>
>>> On Wed, Mar 7, 2018 at 1:48 AM, Kirill Balunov
>>> wrote:
>>> > Note: For some historical reasons as the first argument you can use
>>> > None instead of f
On Wed, Mar 7, 2018 at 2:33 AM, Kirill Balunov wrote:
>
>
> 2018-03-06 17:55 GMT+03:00 Chris Angelico :
>>
>> If the first argument is None, the identity function is assumed. That
>> is, all elements of the iterable that are false are removed; it is
>> equivalent to (item for item in iterable if i
2018-03-06 17:55 GMT+03:00 Chris Angelico :
> If the first argument is None, the identity function is assumed. That
> is, all elements of the iterable that are false are removed; it is
> equivalent to (item for item in iterable if item). It is approximately
> equivalent to (but faster than) filter
On Wed, Mar 7, 2018 at 2:12 AM, Kirill Balunov wrote:
>
>
> 2018-03-06 17:55 GMT+03:00 Chris Angelico :
>>
>> On Wed, Mar 7, 2018 at 1:48 AM, Kirill Balunov
>> wrote:
>> > Note: For some historical reasons as the first argument you can use None
>> > instead of function, in this case the identity
2018-03-06 17:55 GMT+03:00 Chris Angelico :
> On Wed, Mar 7, 2018 at 1:48 AM, Kirill Balunov
> wrote:
> > Note: For some historical reasons as the first argument you can use None
> > instead of function, in this case the identity function is assumed. That
> > is, all elements of iterable that are
On Wed, Mar 7, 2018 at 1:48 AM, Kirill Balunov wrote:
> Note: For some historical reasons as the first argument you can use None
> instead of function, in this case the identity function is assumed. That
> is, all elements of iterable that are false are removed which is equivalent
> to (item for i
2018-03-06 16:58 GMT+03:00 Jason Friedman :
>
> as a ordinary Python user I'd be interested in improvements to the
> documentation, including suggestions on real-world usage.
>
I'm just an ordinary user, just like you :)
> Kirill, taking deprecation/removal off the table, what changes would you
Thank you, Steven.
> There is a feature-request to support that (as Python 2.7 does):
>
> https://bugs.python.org/issue12029
>
> but it is stalled.
I passed over the ticket.
Now, I know that this is a bug, but has not fixed yet.
There are (or ware ?) problems about performance and integrity for
Chris Angelico wrote:
> On Tue, Mar 6, 2018 at 10:04 AM, Steven D'Aprano
> wrote:
>> # Later.
>> if __name__ = '__main__':
>> # Enter the Kingdom of Nouns.
>
> Don't you need a NounKingdomEnterer to do that for you?
No, for some extra flexibility there should be a NounKingdomEntererFactory
2018-03-06 16:35 GMT+03:00 Chris Green :
> It's 'deprecation', depreciation is something quite different. People
> replying have spelt it correctly so you might possibly have noticed I
> thought/hoped.
>
> ... and it does matter a bit because it's not just a mis-spelling, the
> word you are using
2018-03-06 16:51 GMT+03:00 Chris Angelico :
> On Wed, Mar 7, 2018 at 12:23 AM, Kirill Balunov
> wrote:
> > Filter is generally faster than list comprehension or generators.
> >
> > %timeit [*filter(lambda x: x % 3, range(1000))]
> > 100 µs ± 16.4 ns per loop (mean ± std. dev. of 7 runs, 1 loo
On Tue, Mar 6, 2018 at 1:52 AM, Kirill Balunov
wrote:
>
> I propose to delete all references in the `filter` documentation that the
> first argument can be `None`, with possible depreciation of `None` as the
> the first argument - FutureWarning in Python 3.8+ and deleting this option
> in Python
On Wed, Mar 7, 2018 at 12:23 AM, Kirill Balunov wrote:
> Filter is generally faster than list comprehension or generators.
>
> %timeit [*filter(lambda x: x % 3, range(1000))]
> 100 µs ± 16.4 ns per loop (mean ± std. dev. of 7 runs, 1 loops each)
>
> f = lambda x: x % 3
>
> %timeit [*(f(i) for
Kirill Balunov wrote:
>
> As I wrote, __possible depreciation__, I also do not see the point of just
It's 'deprecation', depreciation is something quite different. People
replying have spelt it correctly so you might possibly have noticed I
thought/hoped.
... and it does matter a bit because i
2018-03-06 13:18 GMT+03:00 Chris Angelico :
> The identity function is:
>
> filter(lambda x: x, range(10))
>
> How is it consistent with truthiness? Exactly the same way the
> underlying object is. There's no requirement for the predicate
> function to return True or False - it's perfectly accepta
2018-03-06 14:17 GMT+03:00 Steven D'Aprano <
steve+comp.lang.pyt...@pearwood.info>:
> On Tue, 06 Mar 2018 11:52:22 +0300, Kirill Balunov wrote:
>
> > I propose to delete all references in the `filter` documentation that
> > the first argument can be `None`, with possible depreciation of `None`
> >
On Tue, 06 Mar 2018 11:52:22 +0300, Kirill Balunov wrote:
> I propose to delete all references in the `filter` documentation that
> the first argument can be `None`, with possible depreciation of `None`
> as the the first argument - FutureWarning in Python 3.8+ and deleting
> this option in Python
Le mardi 6 mars 2018 11:15:15 UTC+1, Terry Reedy a écrit :
> On 3/6/2018 3:58 AM, Sébastien Boisgérault wrote:
> > Hi Lawrence,
> >
> > Le mardi 6 mars 2018 01:20:36 UTC+1, Lawrence D’Oliveiro a écrit :
> >> On Tuesday, March 6, 2018 at 8:06:00 AM UTC+13, Sébastien Boisgérault
> >> wrote:
> >>> I
On Tue, Mar 6, 2018 at 7:52 PM, Kirill Balunov wrote:
> This thought occurred to me several times, but I could not decide to write.
> And since `filter` is a builtin, I think this change should be discussed
> here, before opening an issue on bug tracker.
>
> I propose to delete all references in t
On 3/6/2018 3:58 AM, Sébastien Boisgérault wrote:
Hi Lawrence,
Le mardi 6 mars 2018 01:20:36 UTC+1, Lawrence D’Oliveiro a écrit :
On Tuesday, March 6, 2018 at 8:06:00 AM UTC+13, Sébastien Boisgérault wrote:
I have released bitstream, a Python library to manage binary data
(at the byte or bit l
On Tue, Mar 6, 2018 at 8:02 PM, Kirill Balunov wrote:
>
>
> 2018-03-05 17:34 GMT+03:00 Chris Angelico :
>>
>> In theory, the CPython bytecode compiler (don't know about other
>> Python implementations) could just add these as constants. They'd then
>> be bound at either compile time or function de
2018-03-05 21:44 GMT+03:00 Terry Reedy :
> Yes, what we really want for this sort of thing are unrebindable local
> constants. A simple syntax change could do it.
>
> def func_local_1(numb; int = int, float = float, range = range):
>
> The binding after ';' belong in the header because they sho
Le mardi 6 mars 2018 10:23:02 UTC+1, Lawrence D’Oliveiro a écrit :
> On Tuesday, March 6, 2018 at 9:59:55 PM UTC+13, Sébastien Boisgérault wrote:
> >
> > Le mardi 6 mars 2018 01:20:36 UTC+1, Lawrence D’Oliveiro a écrit :
> >
> >> On Tuesday, March 6, 2018 at 8:06:00 AM UTC+13, Sébastien Boisgéraul
On 03/05/2018 07:44 PM, Terry Reedy wrote:
On 3/5/2018 9:34 AM, Chris Angelico wrote:
On Tue, Mar 6, 2018 at 12:52 AM, Terry Reedy wrote:
On 3/5/2018 7:12 AM, Kirill Balunov wrote:
# 1. By passing through local variable's default values
def func_local_1(numb, _int = int, _float = floa
Le mardi 6 mars 2018 09:26:50 UTC+1, Sébastien Boisgérault a écrit :
> Le mardi 6 mars 2018 00:29:25 UTC+1, Roel Schroeven a écrit :
> > Sébastien Boisgérault schreef op 5/03/2018 20:05:
> > > I have released bitstream, a Python library to manage binary data (at the
> > > byte or bit level),
> >
2018-03-05 17:34 GMT+03:00 Chris Angelico :
> In theory, the CPython bytecode compiler (don't know about other
> Python implementations) could just add these as constants. They'd then
> be bound at either compile time or function definition time (by
> default the former, I think, but the latter wo
Hi Lawrence,
Le mardi 6 mars 2018 01:20:36 UTC+1, Lawrence D’Oliveiro a écrit :
> On Tuesday, March 6, 2018 at 8:06:00 AM UTC+13, Sébastien Boisgérault wrote:
> > I have released bitstream, a Python library to manage binary data
> > (at the byte or bit level), hopefully without the pain that this
This thought occurred to me several times, but I could not decide to write.
And since `filter` is a builtin, I think this change should be discussed
here, before opening an issue on bug tracker.
I propose to delete all references in the `filter` documentation that the
first argument can be `None`,
Le mardi 6 mars 2018 00:29:25 UTC+1, Roel Schroeven a écrit :
> Sébastien Boisgérault schreef op 5/03/2018 20:05:
> > I have released bitstream, a Python library to manage binary data (at the
> > byte or bit level),
> > hopefully without the pain that this kind of thing usually entails :)
> >
>
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