On Tue, Apr 1, 2014 at 5:13 PM, Ian Kelly wrote:
> Then your computation is incorrect and will systematically
> underestimate the stopping distance. Assuming for simplicity that the
> acceleration actually increases linearly until it reaches maximum,
> picture the velocity graph between, say, t=0
On Tue, Apr 1, 2014 at 12:24 AM, David Hutto wrote:
>>
>> >> (1) v = u + at
>> >> (2) s = 1/2(u + v)t
>> >> (3) s = ut + 1/2(at^2)
>> >> (4) v^2 = u^2 + 2as
>> >>
>> >> Only (1) and (3) are needed.
>> >
>> > Okay, what's u here? Heh.
>>
>> u is the initial velocity; v is the velocity after acceler
On Mon, Mar 31, 2014 at 11:45 PM, Rustom Mody wrote:
> On Tue, Apr 1, 2014 at 3:26 PM, Steven D'Aprano wrote:
>
>> Haskell has nifty pattern-matching syntax for this that looks quite close
>> to the mathematical hybrid function syntax, but in Python, we're limited
>> to explicitly using an if. If
>
>
> >> (1) v = u + at
> >> (2) s = 1/2(u + v)t
> >> (3) s = ut + 1/2(at^2)
> >> (4) v^2 = u^2 + 2as
> >>
> >> Only (1) and (3) are needed.
> >
> > Okay, what's u here? Heh.
>
> u is the initial velocity; v is the velocity after accelerating at a for
> time t.
>
This assumes that the viscosity is
On Mon, Mar 31, 2014 at 11:01 PM, Chris Angelico wrote:
> On Tue, Apr 1, 2014 at 3:26 PM, Steven D'Aprano wrote:
>> The scenario you describe has (effectively) infinite rate-of-change-of-
>> acceleration, often called "jerk". (A jerk is a rapid change in
>> acceleration.) Human comfort is (within
On Tue, Apr 1, 2014 at 1:45 AM, Rustom Mody wrote:
> On Tue, Apr 1, 2014 at 3:26 PM, Steven D'Aprano wrote:
>
> > Haskell has nifty pattern-matching syntax for this that looks quite close
> > to the mathematical hybrid function syntax, but in Python, we're limited
> > to explicitly using an if.
On Tue, Apr 1, 2014 at 3:26 PM, Steven D'Aprano wrote:
> Haskell has nifty pattern-matching syntax for this that looks quite close
> to the mathematical hybrid function syntax, but in Python, we're limited
> to explicitly using an if. If I were coding this, and I'm not, I'd wrap
> it in a functio
hint:
Tkinter
server db
update the tkinter apps, with the new data, after moving a line down
On Tue, Apr 1, 2014 at 1:06 AM, Miki Tebeka wrote:
> > I want to develop a instant message server, simply has user and group
> entity.
> > Is there any better existing open-source one?
> > Thus I can
On Sunday, March 30, 2014 7:16:07 PM UTC-4, D. Xenakis wrote:
> Id like to ask.. do you know any modern looking GUI examples of windows
> software written in python? Something like this maybe:
> http://techreport.com/r.x/asus-x79deluxe/software-oc.jpg (or hopefully
> something like this android
> I want to develop a instant message server, simply has user and group
> entity.
> Is there any better existing open-source one?
> Thus I can download and have a look.
You can take a look at Twisted Words
(https://twistedmatrix.com/trac/wiki/TwistedWords).
--
https://mail.python.org/mailman/l
On Tue, Apr 1, 2014 at 3:26 PM, Steven D'Aprano wrote:
> On Tue, 01 Apr 2014 01:33:09 +1100, Chris Angelico wrote:
>
>> Call this a code review request, if you like. I'm wondering how you'd go
>> about coding something like this.
>
> I wouldn't. I'd start off by analysing the problem, and putting
On Tue, 01 Apr 2014 01:33:09 +1100, Chris Angelico wrote:
> Call this a code review request, if you like. I'm wondering how you'd go
> about coding something like this.
I wouldn't. I'd start off by analysing the problem, and putting it into
the simplest format possible, and *then* start writing
Caveat emptor(I have a copy of Latin For Idiots).
When you get through with refining, in whatever language, the open
source/proprietary app you're developing, is there anyway you can say for
sure how many people's work went into things under different licenses
accompanying what you may have copy a
This brings us into a juxtaposition between how cultures have tried to
hybridize their mentalities, into more of an empathic means of
communication via a formulatic set of coding, and the philosophy thereof,
and, 3D renderings of what we visualize, and how we come to the
conclusions of these philos
I personally believe that it becomes hard to have even a programming
language overcome cultural learning styles, and programmatic differences,
because of nurture vs nature.
We can all program something which results in a similar return value, but
overcoming the nurturing the internet provides, bec
On Monday, March 31, 2014 3:16:16 PM UTC-5, Sturla Molden wrote:
>
> According to their web page, PySide is only LGPL. Qt is LGPL or commercial.
"""
Licensing
PySide has been published as a response to the lack of suitably licensed Qt
bindings for Python. PySide is licensed under the LGPL vers
在 2014年3月31日星期一UTC+8下午8时37分32秒，Lutz Horn写道：
> Hi,
>
>
>
> > I want to develop a instant message server, simply has user and
>
> > group entity.
>
> >
>
> > Is there any better existing open-source one?
>
>
>
> Take a look at XMPP[0]. There are some Python libraries[1].
>
>
>
> [0] h
On Mon, 31 Mar 2014 04:29:15 -0700, Jamie Mitchell wrote:
> I am new to python so apologies for the ignorance with this question.
>
> How would I apply a line of best fit to a plot?
That depends on what software you are using to generate the plot. I see
you have this line of code:
> plt.plot(h
On Tue, 01 Apr 2014 10:12:38 +1100, Chris Angelico wrote:
[...]
>> I agree with others that triple-quoted strings are best reserved for
>> string literals (including docstrings), not comments.
>
> Fair enough. I can't remember where (or when!) it was that I learned
> triple-quoted strings were app
On 03/31/2014 04:12 PM, Chris Angelico wrote:
On Tue, Apr 1, 2014 at 9:57 AM, Ben Finney wrote:
Chris Angelico writes:
How do you go about doing multi-line comments? I know I've seen other
code using triple-quoted strings for long comments before.
Just use a sequence of one-line comments::
On Mon, Mar 31, 2014 at 1:31 PM, Antoon Pardon
wrote:
> Op 31-03-14 19:40, Ian Kelly schreef:
>> That was an exaggeration on my part. It wouldn't affect my job, as I
>> wouldn't expect to ever actually have to maintain anything like the
>> above. My greater point though is that it damages Python
Roy Smith wrote:
> Please tell us more about the environment you're working in. I'm
> guessing from the fact that you're calling plt.plot(), that you've
> already got some add-on modules loaded. Pandas, maybe?
Probably matplotlib.pyplot
--
https://mail.python.org/mailman/listinfo/python-li
On Tue, Apr 1, 2014 at 9:57 AM, Ben Finney wrote:
> Chris Angelico writes:
>
>> How do you go about doing multi-line comments? I know I've seen other
>> code using triple-quoted strings for long comments before.
>
> Just use a sequence of one-line comments::
>
> # Lorem ipsum dolor sit amet,
Chris Angelico writes:
> How do you go about doing multi-line comments? I know I've seen other
> code using triple-quoted strings for long comments before.
Just use a sequence of one-line comments::
# Lorem ipsum dolor sit amet, consectetur adipiscing elit. Ut a
# sapien tempor, suscipi
On Tue, Apr 1, 2014 at 8:42 AM, Ned Batchelder wrote:
> On 3/31/14 12:03 PM, Chris Angelico wrote:
>>
>> Incidentally, if you want to see the code in context, it's here:
>>
>> https://github.com/Rosuav/runningtime/blob/master/runningtime.py
>>
>> ChrisA
>
>
> I know you didn't ask about these aspe
On 3/31/2014 4:47 PM, Rhodri James wrote:
On Mon, 31 Mar 2014 06:23:46 +0100, Mark H Harris
wrote:
The main point of the link is the status on English as an official
language. 28 out of 50 states have legislated English as the official
language; meaning, that you either speak and write Englis
On 3/31/14 12:03 PM, Chris Angelico wrote:
Incidentally, if you want to see the code in context, it's here:
https://github.com/Rosuav/runningtime/blob/master/runningtime.py
ChrisA
I know you didn't ask about these aspects, but they jumped out at me:
tabs for indentation instead of spaces, an
On Mon, 31 Mar 2014 06:23:46 +0100, Mark H Harris
wrote:
The main point of the link is the status on English as an official
language. 28 out of 50 states have legislated English as the official
language; meaning, that you either speak and write English, or you're
going to have a really
On Mon, 31 Mar 2014 07:08:24 +0100, Mark H Harris
wrote:
On 3/30/14 10:22 AM, Steven D'Aprano wrote:
In 1991, there was no wireless, no mobile computing, hardly any public
Internet outside of the universities. It was before the Eternal
September, and only a few years after the Great Renaming
Terry Reedy :
> @twist_the_function_meaning
> def f: return clear_expression
>
> is no worse in this regard than the written out form
>
> def f: return clear_expression
> f = twist_the_function_meaning(f)
I don't remember feeling the need for either.
I have written wrappers of all sorts, but som
On Mon, 31 Mar 2014 17:29:54 +0100, Chris Angelico
wrote:
On Tue, Apr 1, 2014 at 3:20 AM, Rustom Mody
wrote:
On the whole I prefer multiple assignments.
Maybe in this case use small variable names with
separate(d) explanatory comments??
Shorter variable names would certainly be the more
On 3/31/2014 3:31 PM, Antoon Pardon wrote:
Op 31-03-14 19:40, Ian Kelly schreef:
First, because while those may degrade readability, they do
so in a constrained way. A decorator application is just the @ symbol
and an identifier.
And if abused, can totally change the working of your functio
Metallicow wrote:
> One would have to tool through the PySide agreement for their specifics,
> but as I recall it is exactly the same as Qt is, which makes sense.
According to their web page, PySide is only LGPL. Qt is LGPL or commercial.
> Just because a library is LGPL doesn't mean the auth
On 3/31/2014 1:40 PM, Ian Kelly wrote:
Second, at least in the case of decorators, while I don't dispute that
they can harm readability, I think that in the majority of cases they
actually help it. That's because the @ syntax placed before a
function or class clearly denotes that the construct
Op 31-03-14 19:40, Ian Kelly schreef:
> On Mon, Mar 31, 2014 at 3:55 AM, Antoon Pardon
> wrote:
>> On 27-03-14 17:22, Ian Kelly wrote:
>>> On Thu, Mar 27, 2014 at 9:28 AM, Mark H Harris
>>> wrote:
> Do you think that the ability to write this would be an improvement?
>
> import ⌺
>>>
On 31/03/14 19:28, Abe wrote:
I couldn't see anyone else give this, but I like
if None not in (a, b):
I did.
I am now considering:
if None not in (a,b):
or
if (a is not None) and (b is not None):
That's just
if not (a is None or b is None):
but you seem to have found your way.
However, I
On Mon, Mar 31, 2014 at 12:02 PM, Tim Chase
wrote:
> On 2014-03-31 11:40, Ian Kelly wrote:
>> There is nothing useful
>> you can do with a name that is the U+1F4A9 character that you can't
>> do just as easily with alphanumeric identifiers like pile_of_poo (or
>> куча_фекалий if one prefers; that'
On 2014-03-31 11:40, Ian Kelly wrote:
> There is nothing useful
> you can do with a name that is the U+1F4A9 character that you can't
> do just as easily with alphanumeric identifiers like pile_of_poo (or
> куча_фекалий if one prefers; that's auto-translated, so don't blame
> me if it's a poor tran
On Mon, Mar 31, 2014 at 3:55 AM, Antoon Pardon
wrote:
> On 27-03-14 17:22, Ian Kelly wrote:
>> On Thu, Mar 27, 2014 at 9:28 AM, Mark H Harris wrote:
Do you think that the ability to write this would be an improvement?
import ⌺
⌚ = ⌺.╩░
⑥ = 5*⌺.⋨⋩
❹ = ⑥ - 1
♅⚕⚛ =
> I couldn't see anyone else give this, but I like
> if None not in (a, b):
I did.
> I am now considering:
> if None not in (a,b):
> or
> if (a is not None) and (b is not None):
However, I decided to just turn the two parameters into one (sequence), since
they were logically grouped anyhow.
On Tue, Apr 1, 2014 at 3:20 AM, Rustom Mody wrote:
> On the whole I prefer multiple assignments.
> Maybe in this case use small variable names with
> separate(d) explanatory comments??
Shorter variable names would certainly be the more normal, heh. I let
my brother do that part of the typing, pic
On Monday, March 31, 2014 9:33:54 PM UTC+5:30, Chris Angelico wrote:
> On Tue, Apr 1, 2014 at 2:40 AM, Marko Rauhamaa wrote:
> > As a simple layout question, I'd do it like this:
> >
> > if mode == "Brake2":
> > # Already
On Tue, Apr 1, 2014 at 2:40 AM, Marko Rauhamaa wrote:
> As a simple layout question, I'd do it like this:
>
>
> if mode == "Brake2":
> # Already got the brakes fully on
> distance_to_full_braking_power = 0.0
> spe
Chris Angelico :
> Call this a code review request, if you like. I'm wondering how you'd
> go about coding something like this.
As a simple layout question, I'd do it like this:
if mode == "Brake2":
# Already got the br
Call this a code review request, if you like. I'm wondering how you'd
go about coding something like this.
Imagine you're in a train, and the brakes don't apply instantly. The
definition, in the interests of passenger comfort, is that the first
second of brake application has an acceleration of 0.
On 2014-03-30, Rhodri James wrote:
> On Sun, 30 Mar 2014 11:44:13 +0100, Steven D'Aprano
>
>> Among fans of the British writer Terry Pratchett, the usual term is
>> Merkins. Including among Merkin fans.
>
> Many of whom even know what a merkin is, and use the term anyway.
As much as I'd rather
Hi,
I want to develop a instant message server, simply has user and
group entity.
Is there any better existing open-source one?
Take a look at XMPP[0]. There are some Python libraries[1].
[0] https://en.wikipedia.org/wiki/XMPP
[1] http://xmpp.org/xmpp-software/libraries/
--
Opt out of gl
None of these are in the standard library but why re-invent the wheel?
Using numpy:
http://docs.scipy.org/doc/numpy/reference/generated/numpy.polyfit.html
scipy:
http://docs.scipy.org/doc/scipy-0.13.0/reference/generated/scipy.stats.linregress.html
statsmodels:
http://statsmodels.sourceforge.net
On 31 Mar 2014 00:21, "D. Xenakis" wrote:
>
... Snip ...
> What i need is to develop an android looking program (entirelly in
python) for windows, but dunno if this is possible (most propably is), and
which tool between those would help me most: tkinter - wxpython - pyqt -
pygtk .
>
> Any exampl
On Mon, Mar 31, 2014 at 11:41 PM, Dennis Lee Bieber
wrote:
> On Mon, 31 Mar 2014 16:44:56 +1100, Chris Angelico
> declaimed the following:
>
>>official language, and pick up any government form - something fairly
>>important, like applying for a passport or something. How many
>
> Passpor
In article <0fb15100-15e8-46d6-a38f-b187c7012...@googlegroups.com>,
Jamie Mitchell wrote:
> I am new to python so apologies for the ignorance with this question.
>
> How would I apply a line of best fit to a plot?
Python has nothing built-in which does that, but there are plenty of
add-on mod
In article ,
Mark H Harris wrote:
> On 3/30/14 10:22 AM, Steven D'Aprano wrote:
> > In 1991, there was no wireless, no mobile computing, hardly any public
> > Internet outside of the universities. It was before the Eternal
> > September, and only a few years after the Great Renaming.
>
> I
On 3/31/14 4:39 AM, Marko Rauhamaa wrote:
Mark H Harris :
The main point of the link is the status on English as an official
language. 28 out of 50 states have legislated English as the official
language; meaning, that you either speak and write English, or you're
going to have a really tough t
I am new to python so apologies for the ignorance with this question.
How would I apply a line of best fit to a plot?
My data are netCDF4 data files and this is essentially what I have done so far:
swh1=netCDF4.Dataset('filename','r')
hs1=swh1.variables['hs']
swh2=netCDF4.Dataset('filename'.'r'
Hi all,
I want to develop a instant message server, simply has user and group entity.
Is there any better existing open-source one?
Thus I can download and have a look.
Thanks.
Wesley
--
https://mail.python.org/mailman/listinfo/python-list
On 27-03-14 17:22, Ian Kelly wrote:
> On Thu, Mar 27, 2014 at 9:28 AM, Mark H Harris wrote:
>>> Do you think that the ability to write this would be an improvement?
>>>
>>> import ⌺
>>> ⌚ = ⌺.╩░
>>> ⑥ = 5*⌺.⋨⋩
>>> ❹ = ⑥ - 1
>>> ♅⚕⚛ = [⌺.✱✳**⌺.❇*❹{⠪|⌚.∣} for ⠪ in ⌺.⣚]
>>> ⌺.˘˜¨´՛՜(♅⚕⚛)
>>
>>Ste
On Monday, March 31, 2014 3:48:33 AM UTC-5, Sturla Molden wrote:
> If you are to distribute a program using LGPL software on AppStore or
> Gopgle Play, then remember that the user must be allowed to relink the
> program with anpther version of the library. That is an LGPL requirement. I
> don't see
Metallicow wrote:
> My opinion would be wxPython if not actually using for a mobile, or
> PySide if you are. Both of these have acceptable licenses if you want to
> go commercial also without having to pay for commercial library usage.
If you are to distribute a program using LGPL software on A
Mark H Harris :
> The main point of the link is the status on English as an official
> language. 28 out of 50 states have legislated English as the official
> language; meaning, that you either speak and write English, or you're
> going to have a really tough time participating in culture, busines
Unicode...
Interesting reading.
jmf
--
https://mail.python.org/mailman/listinfo/python-list
On 31/03/2014 05:57, Mark H Harris wrote:
On 3/30/14 5:35 AM, Steven D'Aprano wrote:
Approximately 5% of the US population either do not speak English at all,
or speak it poorly. That includes approximately half a million ASL
speakers (American Sign Language, which is not a manual representatio
contact.tri...@gmail.com wrote:
> if (a, b) != (None, None):
> or
> if a != None != b:
>
> Preference? Pros? Cons? Alternatives?
I couldn't see anyone else give this, but I like
if None not in (a, b):
pass
Jeremy
--
https://mail.python.org/mailman/listinfo/python-list
On Monday, March 31, 2014 12:23:55 PM UTC+5:30, Ben Finney wrote:
> Mark, you are demonstrating a habit of making sweeping pronouncements
> and assertions; and then, when those statements are challenged, you
> act as though you never said them.
> Here's a characteristic example:
> Mark H Harris w
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