On Sun, Oct 29, 2017 at 2:08 PM, Gregory Ewing
wrote:
> Stefan Ram wrote:
>>
>> Well, then one can ask about the entropy of a data source
>> that only is emitting this message.
>
>
> You can, but it's still the *source* that has the entropy,
> not the message.
>
> (And the answer in that case
Steve D'Aprano wrote:
I don't think that's right. The entropy of a single message is a well-defined
quantity, formally called the self-information.
https://en.wikipedia.org/wiki/Self-information
True, but it still depends on knowing (or assuming) the
probability of getting that particular me
Stefan Ram wrote:
Well, then one can ask about the entropy of a data source
that only is emitting this message.
You can, but it's still the *source* that has the entropy,
not the message.
(And the answer in that case is that the entropy is zero.
If there's only one possible message you can
On Sun, Oct 29, 2017 at 1:32 PM, Chris Angelico wrote:
> On Sun, Oct 29, 2017 at 1:18 PM, Gregory Ewing
> wrote:
>> You're missing something fundamental about what
>> entropy is in information theory.
>>
>> It's meaningless to talk about the entropy of a single
>> message. Entropy is a function o
On Sun, Oct 29, 2017 at 1:18 PM, Gregory Ewing
wrote:
> You're missing something fundamental about what
> entropy is in information theory.
>
> It's meaningless to talk about the entropy of a single
> message. Entropy is a function of the probability
> distribution of *all* the messages you might
Steve D'Aprano wrote:
Random data = any set of data generated by "a source of random".
Any set of data generated by Grant Thompson?
https://www.youtube.com/user/01032010814
--
Greg
--
https://mail.python.org/mailman/listinfo/python-list
danceswithnumb...@gmail.com wrote:
10101011
This equals
61611
This can be represented using
0-6 log2(7)*5= 14.0367746103 bits
11010101
This equals
54543
This can be represented using
0-5 log2(6)*5= 12.9248125036 bits
You're missing something fundamental about what
entropy is
On Sat, 28 Oct 2017 16:20:54 -0700, Στέφανος Σωφρονίου wrote:
> I do believe though that if (!d) is a lot clearer than if (d == NULL)
> as it is safer than falsely assigning NULL in d, by pure mistake.
Having made my living writing C code for a very long time, I always
found if (!d) *harder* to r
Ben Bacarisse wrote:
But that has to be about the process that gives rise to the data, not
the data themselves.
If I say: "here is some random data..." you can't tell if it is or is
not from a random source. I can, as a parlour trick, compress and
recover this "random data" because I chose it
On Oct 28, 2017 10:30 AM, "Stefan Ram" wrote:
> Well, then one can ask about the entropy of a data source
> thatt only is emitting this message. (If it needs to be endless:
> thatt only is emitting this message repeatedly.)
If there is only one possible message then the entropy is zero.
-1.0 * l
On Sun, 29 Oct 2017 07:03 am, Peter Pearson wrote:
> On Thu, 26 Oct 2017 19:26:11 -0600, Ian Kelly wrote:
>>
>> . . . Shannon entropy is correctly calculated for a data source,
>> not an individual message . . .
>
> Thank you; I was about to make the same observation. When
> people talk about t
On 28-Oct-2017, Martin Schöön wrote
(in article ):
> It seems something is amiss with my Python 2.7 installation. Revisiting
> Nikola (static web site generator written in Python) for the first time
> in several years the other day I experience some unexpected problems. I
> got some help form the
On Saturday, October 28, 2017 at 9:54:30 PM UTC+3, bartc wrote:
> On 28/10/2017 19:42, Στέφανος Σωφρονίου wrote:
> > Greetings everyone.
> >
> > I have noticed that in many if conditions the following syntax is used:
> >
> > a) if (variable == NULL) { ... }
> > b) if (variable == -1) { ... }
> >
On 28Oct2017 23:56, Piet van Oostrum wrote:
I am using Python 2.7.14 on MacOS Sierra.
I have a small Python program that calls a shell script in a loop with a
time.sleep() in it.
The shell script is called with subprocess.Popen(), followed by a
subprocess.wait().
No information is exchanged w
On 29Oct2017 10:11, Cameron Simpson wrote:
It may be a bug. Or it may be a system call which cannot be meaningfulling
retried. But had you considered only activating the handler around the sleep?
You still need to copy with SIGINT single I infer that you send this from
outside the program.
On Sun, Oct 29, 2017 at 8:56 AM, Piet van Oostrum wrote:
> I am using Python 2.7.14 on MacOS Sierra.
>
> I have a small Python program that calls a shell script in a loop with a
> time.sleep() in it.
> The shell script is called with subprocess.Popen(), followed by a
> subprocess.wait().
> No in
I am using Python 2.7.14 on MacOS Sierra.
I have a small Python program that calls a shell script in a loop with a
time.sleep() in it.
The shell script is called with subprocess.Popen(), followed by a
subprocess.wait().
No information is exchanged with the shell script.
Once in a while I send a
On Sat, Oct 28, 2017 at 08:41:34PM +, Martin Schöön wrote:
> It seems something is amiss with my Python 2.7 installation. Revisiting
> Nikola (static web site generator written in Python) for the first time
> in several years the other day I experience some unexpected problems. I
> got some he
On 10/28/17 4:26 PM, Stefan Ram wrote:
Ned Batchelder writes:
On 10/28/17 3:00 PM, Stefan Ram wrote:
=?UTF-8?B?zqPPhM6tz4bOsc69zr/PgiDOo8+Jz4bPgc6/zr3Or86/z4U=?=
writes:
What I wanted to ask is, is there a particular reason for not choosing
definition of »NULL«. »NULL« is not part of the
It seems something is amiss with my Python 2.7 installation. Revisiting
Nikola (static web site generator written in Python) for the first time
in several years the other day I experience some unexpected problems. I
got some help form the Nikola people and the conclusion is something
is broken with
On 10/28/17 3:00 PM, Stefan Ram wrote:
=?UTF-8?B?zqPPhM6tz4bOsc69zr/PgiDOo8+Jz4bPgc6/zr3Or86/z4U=?=
writes:
What I wanted to ask is, is there a particular reason for not choosing
I am not a CPython developer, but here are my 2 cents about
the possibilities:
if (variable == NULL) { ...
On Thu, 26 Oct 2017 19:26:11 -0600, Ian Kelly wrote:
>
> . . . Shannon entropy is correctly calculated for a data source,
> not an individual message . . .
Thank you; I was about to make the same observation. When
people talk about the entropy of a particular message, you
can bet they're headed
On Sun, Oct 29, 2017 at 6:10 AM, Stefan Ram wrote:
> Rustom Mody writes:
>>Useful python programs are often small; even tiny
>
> We must not forget that tiny programs are just large
> problems with the size masterfully hidden.
>
> For example, the »print« of Python is actually implemented
>
On Sun, Oct 29, 2017 at 5:42 AM, Στέφανος Σωφρονίου
wrote:
> Greetings everyone.
>
> I have noticed that in many if conditions the following syntax is used:
>
> a) if (variable == NULL) { ... }
> b) if (variable == -1) { ... }
> c) if (variable != NULL) { ... }
>
> What I wanted to ask is, is ther
On 28/10/2017 19:42, Στέφανος Σωφρονίου wrote:
Greetings everyone.
I have noticed that in many if conditions the following syntax is used:
a) if (variable == NULL) { ... }
b) if (variable == -1) { ... }
c) if (variable != NULL) { ... }
What I wanted to ask is, is there a particular reason for
Greetings everyone.
I have noticed that in many if conditions the following syntax is used:
a) if (variable == NULL) { ... }
b) if (variable == -1) { ... }
c) if (variable != NULL) { ... }
What I wanted to ask is, is there a particular reason for not choosing
a) if (!variable) { ... } in place
On Friday, October 27, 2017 at 3:35:45 PM UTC-5, Robert wrote:
> I read below code snippet on line. I am interested in the
> second of the last line: `cast=float`. I've tried it in
> Python. Even simply with: `float` It has no error, but what
> use is it?
>
> self.freqslider=forms.slider(
>
From the Python2.7 snippet in [1], Python2.7 reports that my
sys.path[] contains:
f:\ProgramFiler\Python27\lib\site-packages\pyreadline-2.0-py2.7-win32.egg
(a .zip-file)
But I have also a 'f:\ProgramFiler\Python27\lib\site-packages\pyreadline'
directory. With the complete package AFAICS.
So m
I like this trajectory of conversation.
Can we re define "small tiny" as "scripts"?
i can argue, based on my expirience with other languages, that there is no
need for an "ide". The most ive ever needed is a text editor and a few
plugins with "print".
Moving to "average" size projects.
What i fou
Steve D'Aprano writes:
> On Fri, 27 Oct 2017 09:53 am, Ben Bacarisse wrote:
>
>> A source of random can be defined but "random data" is much more
>> illusive.
>
> Random data = any set of data generated by "a source of random".
(I had an editing error there; it should be "a source of random data
OSX has been shipping with Python 2.7 for several years. I’m not sure why you
are seeing 2.6.
Bill
> On Oct 27, 2017, at 2:48 AM, Lutz Horn wrote:
>
> On Thu, Oct 26, 2017 at 07:59:10PM -0700, randyli...@gmail.com wrote:
>> Hi Bob, thanks for responding. I'm not sure where to do so, my
>> pro
We are pleased to announce the last batch of cut videos for EuroPython 2017.
* All 163 EuroPython 2017 videos are now online *
To see the new videos, please head over to our EuroPython YouTube
channel and select the "EuroPython 2017" playlist. The new videos start
at entry 129 in the p
On Fri, 27 Oct 2017 09:53 am, Ben Bacarisse wrote:
> A source of random can be defined but "random data" is much more
> illusive.
Random data = any set of data generated by "a source of random".
--
Steve
“Cheer up,” they said, “things could be worse.” So I cheered up, and sure
enough, thing
I forget to precise that I am using pycharm.
And this issue is reproducible also using command line to run the code.
Best regards
2017-10-28 14:31 GMT+02:00 David Gabriel :
> Thanks so Lutz much for your reply.
> I am using python2.7 and I am running this code in an Openstack instance.
> I will
Thanks so Lutz much for your reply.
I am using python2.7 and I am running this code in an Openstack instance.
I will apply your recommandation and let you know about the result ...
Kind regards.
2017-10-27 16:13 GMT+02:00 Lutz Horn :
> On Fri, Oct 27, 2017 at 03:56:39PM +0200, David Gabriel wrot
I've just released version 0.2.6 of distlib on PyPI [1]. For newcomers,distlib
is a library of packaging functionality which is intended to beusable as the
basis for third-party packaging tools.
The main changes in this release are as follows:
* Fixed #99: Updated to handle a case where sys.getfi
On Saturday, October 28, 2017 at 4:46:03 PM UTC+5:30, Christian Gollwitzer
wrote:
> Am 28.10.17 um 09:04 schrieb Rustom Mody:
> > [The other day I was writing a program to split alternate lines of a file;
> > Apart from file-handling it was these two lines:
> >
> > for x in lines[0::2]: pr
Am 28.10.17 um 09:04 schrieb Rustom Mody:
[The other day I was writing a program to split alternate lines of a file;
Apart from file-handling it was these two lines:
for x in lines[0::2]: print(x.strip())
for x in lines[1::2]: print(x.strip())
]
...and using the best(TM) tool for
Hi All,
I'm pleased to announce the release of testfixtures 5.3.0 featuring the
following:
* Add pytest traceback hiding for|TempDirectory.compare()|.
* Add warnings that|log_capture()|,|tempdir()|and|replace()|are not
currently compatible with pytest’s fixtures mechanism.
* Better suppo
On 28/10/17 08:55, Christopher Reimer wrote:
> Greetings,
>
> When I set up my static website using Pelican several years ago, many URLs
> ended with index.html. Now that I'm looking at Django, I got a small set of
> URLs working with and without index.html to point to the correct pages.
>
> I
On Saturday, October 28, 2017 at 11:59:14 AM UTC+5:30, Andrew Z wrote:
> Yeah, lets start the war!
> // joking!
>
> But if i think about it... there are tons articles and flame wars about "a
> vs b".
> And yet, what if the question should be different:
>
> If you were to create the "ide" for your
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