On Wed, Jun 16, 2021 at 12:44 PM Avi Gross via Python-list
wrote:
>
> Greg,
>
> My point was not to ASK what python does as much as to ask why it matters to
> anyone which way it does it. Using less space at absolutely no real expense
> is generally a plus. Having a compiler work too hard, or even
On 15/06/2021 21.37, BlindAnagram wrote:
> On 15/06/2021 00:11, dn wrote:
>> On 15/06/2021 09.18, BlindAnagram wrote:
>>> On 14/06/2021 20:43, Chris Angelico wrote:
On Tue, Jun 15, 2021 at 5:41 AM BlindAnagram
>> ...
> I think the difference here is that I know I am going to have to look at
>
Greg,
My point was not to ASK what python does as much as to ask why it matters to
anyone which way it does it. Using less space at absolutely no real expense
is generally a plus. Having a compiler work too hard, or even ask the code
to work too hard, is often a minus.
If I initialized the tuple
On 16/06/21 12:15 pm, Avi Gross wrote:
May I ask if there are any PRACTICAL differences if multiple immutable
tuples share the same address or not?
Only if some piece of code relies on the identity of tuples
by using 'is' or id() on them.
There's rarely any need to write code like that, though
On Wed, Jun 16, 2021 at 10:17 AM Avi Gross via Python-list
wrote:
>
> May I ask if there are any PRACTICAL differences if multiple immutable
> tuples share the same address or not?
No, there aren't. It's nothing more than an (optional) optimization.
This is true of every immutable type, including
May I ask if there are any PRACTICAL differences if multiple immutable
tuples share the same address or not?
I mean if I use a tuple in a set or as the key in a dictionary and a second
one comes along, will it result in two entries one time and only one the
other time?
Some languages I use often
Op 15-06-2021 om 19:14 schreef Grant Edwards:
On 2021-06-15, Menno Holscher wrote:
There is no difference regarding security concerns.
I find that hard to believe given the long list of CVEs I've just had
to sort through for even fairly recent versions of PHP. I just can't
belive that Python
On 15/06/21 7:32 pm, Jach Feng wrote:
But usually the list creation is not in simple way:-) for example:
a = [1,2]
m = [a for i in range(3)]
m
[[1, 2], [1, 2], [1, 2]]
id(m[0]) == id(m[1]) == id(m[2])
True
The first line is only executed once, so you just get one
list object [1, 2]. You the
On 15/06/21 10:07 pm, Elena wrote:
After the optimization, I will use f just to predict new Xi.
So you're going to use f backwards?
I don't see how that will work. Where are you going to
find a new yi to feed into the inverse of f?
I think I don't understand what role g plays in all of
this.
On Wed, Jun 16, 2021 at 3:17 AM MRAB wrote:
>
> On 2021-06-15 17:49, Chris Angelico wrote:
> > On Wed, Jun 16, 2021 at 2:45 AM Arak Rachael
> > wrote:
> >>
> >> Hi to everyone,
> >>
> >> I am having a problem with this error, I created a package and uploaded it
> >> to Test PyPi, but I can not
On 2021-06-15, Menno Holscher wrote:
> There is no difference regarding security concerns.
I find that hard to believe given the long list of CVEs I've just had
to sort through for even fairly recent versions of PHP. I just can't
belive that Python has anywhere close to that many secruity issues
On 2021-06-15 17:49, Chris Angelico wrote:
On Wed, Jun 16, 2021 at 2:45 AM Arak Rachael wrote:
Hi to everyone,
I am having a problem with this error, I created a package and uploaded it to
Test PyPi, but I can not get it to work, can someone help me please?
https://test.pypi.org/manage/proj
On 16/06/2021 04.47, Chris Angelico wrote:
> On Wed, Jun 16, 2021 at 2:41 AM Grimble wrote:
>> Thanks for reminding me of the log files. I've worked out that the
>> message on machine H (for haydn, which shows my preferred music genre)
>> was bouncing because haydn.. was not a registered
On Wed, Jun 16, 2021 at 2:45 AM Arak Rachael wrote:
>
> Hi to everyone,
>
> I am having a problem with this error, I created a package and uploaded it to
> Test PyPi, but I can not get it to work, can someone help me please?
>
> https://test.pypi.org/manage/project/videotesting/releases/'
>
> The
On 2021-06-15 17:18, Dieter Maurer wrote:
Chris Angelico wrote at 2021-6-15 19:08 +1000:
On Tue, Jun 15, 2021 at 6:32 PM Dieter Maurer wrote:
Chris Angelico wrote at 2021-6-15 05:35 +1000:
>On Tue, Jun 15, 2021 at 5:12 AM Jach Feng wrote:
>>
>> >>> n = [(1,2) for i in range(3)]
>> >>> n
>> [
On Wed, Jun 16, 2021 at 2:41 AM Grimble wrote:
> Thanks for reminding me of the log files. I've worked out that the
> message on machine H (for haydn, which shows my preferred music genre)
> was bouncing because haydn.. was not a registered subdomain with
> my ISP, whereas bach..
On Wed, Jun 16, 2021 at 2:18 AM Dieter Maurer wrote:
>
> Chris Angelico wrote at 2021-6-15 19:08 +1000:
> >On Tue, Jun 15, 2021 at 6:32 PM Dieter Maurer wrote:
> >>
> >> Chris Angelico wrote at 2021-6-15 05:35 +1000:
> >> >On Tue, Jun 15, 2021 at 5:12 AM Jach Feng wrote:
> >> >>
> >> >> >>> n =
Hi to everyone,
I am having a problem with this error, I created a package and uploaded it to
Test PyPi, but I can not get it to work, can someone help me please?
https://test.pypi.org/manage/project/videotesting/releases/'
The error:
/home/user/anaconda3/envs/testing/bin/python
/home/user/de
On 14/06/2021 20:58, dn wrote:
On 15/06/2021 01.00, Grimble wrote:
I have two machines running Mageia 8 and Python 2.8.9, They use the same
Python script to maintain a list of changed packages from dnf update and
dnf install. In addition the script sends a short email message to my
main email ad
Il Tue, 15 Jun 2021 01:53:09 +, Martin Di Paola ha scritto:
> From what I'm understanding it is an "optimization problem" like the
> ones that you find in "linear programming".
>
> But in your case the variables are not Real (they are Integers) and the
> function to minimize g() is not linear
Il Tue, 15 Jun 2021 10:40:05 +1200, Greg Ewing ha scritto:
> On 15/06/21 12:51 am, Elena wrote:
> Hmmm, so the problem breaks down into two parts:
> (1) find a vector Y that minimises g (2) find a set of rules that will
> allow you to predict each component of Y from its corresponding X values
>
Op 14-06-2021 om 21:17 schreef Pascal B via Python-list:
Hi,
I would like to know if for a small app for instance that requires a connection
to a remote server database if php is more suitable than Python mainly
regarding security.
Php requires one port for http and one port for the connection
On 15/06/2021 00:11, dn wrote:
On 15/06/2021 09.18, BlindAnagram wrote:
On 14/06/2021 20:43, Chris Angelico wrote:
On Tue, Jun 15, 2021 at 5:41 AM BlindAnagram
...
No it isn't hard to use popitem() but it evidently proved hard for me to
remember that it was there.
If that's a problem, you'
On 15/06/2021 01:36, Terry Reedy wrote:
On 6/14/2021 5:18 PM, BlindAnagram wrote:
I believe that consistency in how methods common to different types
work is useful since it adds to the coherence of the language as a
whole and avoids the need to remember special cases.
Each collection class
Peter Otten 在 2021年6月15日 星期二下午2:48:07 [UTC+8] 的信中寫道：
> On 12/06/2021 04:02, Jach Feng wrote:
>
> def foo():
> > ... # do something
> > ...
> a = []
> for i in range(3):
> > ... a.append(foo())
> > ...
> a
> > []
> The most natural way to achieve something similar is to
Greg Ewing 在 2021年6月15日 星期二下午3:01:46 [UTC+8] 的信中寫道：
> On 15/06/21 3:18 pm, Jach Feng wrote:
> > From a user's point, I don't really care how Python creates thoseinstances,
> > > either using an already exist one or create a new one, as
> > long as each element (and its sub-element) are independen
Chris Angelico 在 2021年6月15日 星期二上午5:23:12 [UTC+8] 的信中寫道：
> On Tue, Jun 15, 2021 at 7:11 AM Rob Cliffe via Python-list
> wrote:
> >
> > This puzzled me, so I played around with it a bit (Python 3.8.3):
> >
> > n = []
> > for i in range(3):
> > n.append((1,7,-3,None,"x"))
> > for i in range(3
Am 12.06.21 um 04:02 schrieb Jach Feng:
def foo():
... # do something
...
a = []
for i in range(3):
... a.append(foo())
...
a
[]
How about having "foo" return a list of things? Then you can append that
list and return an empty list if you want nothing added:
In [1]: def foo():
Chris Angelico wrote at 2021-6-15 19:08 +1000:
>On Tue, Jun 15, 2021 at 6:32 PM Dieter Maurer wrote:
>>
>> Chris Angelico wrote at 2021-6-15 05:35 +1000:
>> >On Tue, Jun 15, 2021 at 5:12 AM Jach Feng wrote:
>> >>
>> >> >>> n = [(1,2) for i in range(3)]
>> >> >>> n
>> >> [(1, 2), (1, 2), (1, 2)]
>
On 15/06/21 3:18 pm, Jach Feng wrote:
From a user's point, I don't really care how Python creates thoseinstances, >
either using an already exist one or create a new one, as
long as each element (and its sub-element) are independent from each
other so a modification of one will not influence the
On Tue, Jun 15, 2021 at 08:39:51AM +1200, dn via Python-list wrote:
> On 15/06/2021 07.17, Pascal B via Python-list wrote:
> > Hi,
> > I would like to know if for a small app for instance that requires a
> > connection to a remote server database if php is more suitable than Python
> > mainly reg
On Tue, Jun 15, 2021 at 6:32 PM Dieter Maurer wrote:
>
> Chris Angelico wrote at 2021-6-15 05:35 +1000:
> >On Tue, Jun 15, 2021 at 5:12 AM Jach Feng wrote:
> >>
> >> >>> n = [(1,2) for i in range(3)]
> >> >>> n
> >> [(1, 2), (1, 2), (1, 2)]
> >> >>> id(n[0]) == id(n[1]) == id(n[2])
> >> True
> >
Chris Angelico wrote at 2021-6-15 05:35 +1000:
>On Tue, Jun 15, 2021 at 5:12 AM Jach Feng wrote:
>>
>> >>> n = [(1,2) for i in range(3)]
>> >>> n
>> [(1, 2), (1, 2), (1, 2)]
>> >>> id(n[0]) == id(n[1]) == id(n[2])
>> True
>
>This is three tuples. Tuples are immutable and you get three
>references
On 14Jun2021 09:39, BlindAnagram wrote:
>However, d.pop(key, [default]) returns the value (or the default) and
>consistency with other pops (a good thing in my view) would suggest
>that d.pop() could return a random value, which would serve my purpose
>when there is only one element.
If you do
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