On Thu, Nov 10, 2016 at 12:43 PM, srinivas devaki
wrote:
> complexity wise it's O(N), but space complexity is O(N**2) to execute
> this function,
I'm sorry, that is a mistake.
I just skimmed through the itertoolsmodule.c, and it seems like the
space complexity is just O(N), as when tee objects ar
Ian Kelly writes:
> I'd use the maxlen argument to deque here.
Oh that's cool, it's a Python 3 thing though.
> Better to move the extra yield above the loop and reorder the loop
> body so that the yielded tuple includes the element just read.
Thanks, I'll give that a try.
>> if len(d)
On Thursday 10 November 2016 18:23, Andrea D'Amore wrote:
> On 10 November 2016 at 00:15, Steve D'Aprano
> wrote:
>> py> import collections
> […]
>> py> import os
>> py> os.listdir('/usr/local/lib/python3.5/collections/')
>
> Not
>
> os.listdir(collections.__path__[0])
>
> since it's alrea
On Thursday 10 November 2016 17:43, breamore...@gmail.com wrote:
> On Thursday, November 10, 2016 at 1:09:31 AM UTC, Steve D'Aprano wrote:
>>
>
> [snipped]
>
> Steven, there is no need to be rude or condescending.
Indeed, and if I thought you were sincere, or knew what you were objecting to,
On 10 November 2016 at 00:15, Steve D'Aprano wrote:
> py> import collections
[…]
> py> import os
> py> os.listdir('/usr/local/lib/python3.5/collections/')
Not
os.listdir(collections.__path__[0])
since it's already there?
--
Andrea
--
https://mail.python.org/mailman/listinfo/python-list
> def ngrams(iterable, n=2):
> if n < 1:
> raise ValueError
> t = tee(iterable, n)
> for i, x in enumerate(t):
> for j in range(i):
> next(x, None)
> return zip(*t)
def myngrams(iterable, n=2):
t = list(tee(iterable, 1))
for _ in range(n - 1):
Am 10.11.2016 um 03:06 schrieb Paul Rubin:
This can probably be cleaned up some:
from itertools import islice
from collections import deque
def ngram(n, seq):
it = iter(seq)
d = deque(islice(it, n))
if len(d) != n:
return
for s in
On 11/09/2016 04:30 PM, Michael Torrie wrote:
On 11/09/2016 04:21 PM, Ethan Furman wrote:
On 09/11/2016 21:25, breamore...@gmail.com wrote:
[...filtered...]
Mark, you do not need to be insulting nor condescending.
Agreed. Is he still being filtered on the mailing list? He's still in
my ki
On Wed, Nov 9, 2016 at 7:06 PM, Paul Rubin wrote:
> This can probably be cleaned up some:
Okay. :-)
> from itertools import islice
> from collections import deque
>
> def ngram(n, seq):
Looks like "seq" can be any iterable, not just a sequence.
> it = iter(seq)
> d
when this files run gives corresponding output values as;
# test BLE Scanning software
# jcs 6/8/2014
import MySQLdb as my
import blescan
import sys
import bluetooth._bluetooth as bluez
dev_id = 0
db = my.connect(host="localhost",
user="root",
passwd="root",
db="test"
)
cursor = db.cursor
On Thursday, November 10, 2016 at 7:02:31 AM UTC+5:30, Skip Montanaro wrote:
> > Too bad that the indentation is still not actually significant. One little
> > undetectable mistake with the braces and the meaning of the code is
> totally
> > changed.
>
> Maybe an Emacs mode which can toggle betwee
On Wed, Nov 9, 2016 at 7:53 PM, Chris Angelico wrote:
> It's called Jython. :)
Well, sure, but that didn't look enough like Python, so no chance that
I would mistake it for Jython. I suspect that whoever worked out that
arrangement of semicolons and braces had some help from her tools.
Skip
--
This can probably be cleaned up some:
from itertools import islice
from collections import deque
def ngram(n, seq):
it = iter(seq)
d = deque(islice(it, n))
if len(d) != n:
return
for s in it:
yield tuple(d)
d.popleft(
On Thu, Nov 10, 2016 at 12:32 PM, Skip Montanaro
wrote:
>
> Maybe an Emacs mode which can toggle between "Java view/mode" (normal) and
> "Python view/mode" (Rustom's Twitter example) would be useful. In the
> latter, you'd edit the code as if it was Python and see it indebted ask
> nice, while it
On Thu, Nov 10, 2016 at 12:16 PM, BartC wrote:
> But now that I was about to use it, another problem. The Ubuntu Python is
> 2.7. The Windows one has both 2.7 and 3.4 (and my IDE can select either).
>
> The bit of code I wanted to run has Py3-style print functions. I tried
> 'import six' as someon
On 10/11/2016 01:16, BartC wrote:
I suppose I can get rid of the prints for the test I wanted to do, or
find out how to do the same thing under Py2 print. Or install Py3 on
Ubuntu, which is a big job and I've no idea how to switch between them.
Some good news, it turned out Ubuntu had both Pyt
> Too bad that the indentation is still not actually significant. One little
> undetectable mistake with the braces and the meaning of the code is
totally
> changed.
Maybe an Emacs mode which can toggle between "Java view/mode" (normal) and
"Python view/mode" (Rustom's Twitter example) would be us
On 10/11/2016 00:38, Michael Torrie wrote:
On 11/09/2016 02:10 PM, BartC wrote:
Good point, I use Ubuntu under Windows. It should be child's play,
except... 'sudo apt-get install numpy' or 'python-numpy' doesn't work.
Something is wrong with your setup then. Because both python-numpy and
pytho
On Thu, 10 Nov 2016 11:38 am, Michael Torrie wrote:
> On 11/09/2016 02:10 PM, BartC wrote:
>> Good point, I use Ubuntu under Windows. It should be child's play,
>> except... 'sudo apt-get install numpy' or 'python-numpy' doesn't work.
>
> Something is wrong with your setup then.
Bart has been
On Nov 9, 2016 5:48 PM, "Michael Torrie" wrote:
On 11/09/2016 12:39 PM, jlada...@itu.edu wrote:
> On Wednesday, November 9, 2016 at 4:32:15 AM UTC-8, Rustom Mody wrote:
>> https://twitter.com/UdellGames/status/788690145822306304
>
> It took me a minute to see it. That's insane!
Yeah it is... ho
On 11/09/2016 05:54 PM, Chris Angelico wrote:
> On Thu, Nov 10, 2016 at 11:42 AM, Michael Torrie wrote:
>> On 11/09/2016 12:39 PM, jlada...@itu.edu wrote:
>>> On Wednesday, November 9, 2016 at 4:32:15 AM UTC-8, Rustom Mody wrote:
https://twitter.com/UdellGames/status/788690145822306304
>>>
>>
On Thu, Nov 10, 2016 at 11:42 AM, Michael Torrie wrote:
> On 11/09/2016 12:39 PM, jlada...@itu.edu wrote:
>> On Wednesday, November 9, 2016 at 4:32:15 AM UTC-8, Rustom Mody wrote:
>>> https://twitter.com/UdellGames/status/788690145822306304
>>
>> It took me a minute to see it. That's insane!
>
>
On Thu, Nov 10, 2016 at 11:38 AM, Michael Torrie wrote:
> On 11/09/2016 02:10 PM, BartC wrote:
>> Good point, I use Ubuntu under Windows. It should be child's play,
>> except... 'sudo apt-get install numpy' or 'python-numpy' doesn't work.
>
> Something is wrong with your setup then.
Or with his e
On 11/09/2016 12:39 PM, jlada...@itu.edu wrote:
> On Wednesday, November 9, 2016 at 4:32:15 AM UTC-8, Rustom Mody wrote:
>> https://twitter.com/UdellGames/status/788690145822306304
>
> It took me a minute to see it. That's insane!
Yeah it is... however Java actually looks pretty nice without all
On 11/09/2016 02:10 PM, BartC wrote:
> Good point, I use Ubuntu under Windows. It should be child's play,
> except... 'sudo apt-get install numpy' or 'python-numpy' doesn't work.
Something is wrong with your setup then. Because both python-numpy and
python3-numpy are in the standard ubuntu reposi
On Thu, Nov 10, 2016 at 8:35 AM, wrote:
> I don't actually use pip much myself, I use Synaptic Package Manager. Unless
> you need a package from the PSF repository that Canonical doesn't have,
> Synaptic should be fine for you. If you want to run the Python3 version of
> pip from the command
On 11/09/2016 04:21 PM, Ethan Furman wrote:
>> On 09/11/2016 21:25, breamore...@gmail.com wrote:
>
> [...filtered...]
>
> Mark, you do not need to be insulting nor condescending.
Agreed. Is he still being filtered on the mailing list? He's still in
my killfile.
--
https://mail.python.org/mail
On Thu, 10 Nov 2016 08:08 am, Wolfgang Maier wrote:
> Hi,
>
> I just used the stdlib's modulefinder.ModuleFinder (intended to find
> modules used by a script) for the first time in my life and it just
> doesn't seem to work like documented at all.
> Not sure what is going on, but if I try the usa
On 09/11/2016 21:25, breamore...@gmail.com wrote:
[...filtered...]
Mark, you do not need to be insulting nor condescending.
--
~Ethan~
--
https://mail.python.org/mailman/listinfo/python-list
On Thu, 10 Nov 2016 10:01 am, BartC wrote:
> I haven't ruled out that collections is written in Python. But I can't
> find a 'collections.py' module in my Python 3.4; the nearest is
> "__init__.py". And there /is/ a lot of code there.
And that's exactly right.
py> import collections
py> collecti
@eryk sun: Thank you for useful reply.
But note that I don't propose to touch the python interpeters (python*.exe),
neither to change anything in how distutils work (about entry points).
My proposal is only for the Windows-specific Py launcher. For those who runs
python*.exe thru associations o
On 09/11/2016 21:25, breamore...@gmail.com wrote:
On Wednesday, November 9, 2016 at 7:34:41 PM UTC, BartC wrote:
All the real work is done inside the Collections module. If that was
written in Python, then you'd have to Cythonise that, and there might be
quite a lot of it!
But I think 'collec
I am a Python beginner but would like to contribute $0.02 in absence of
authoritative answers (thanks Tim J. for encouragement).
After researching this topic for a while, it looks like they now recommend
distributing wheels rather than sdist's.
For Windows thus is reasonable, given that there i
On 09.11.2016 22:48, Skip Montanaro wrote:
I've not used it before, but I suspect it's meant to be used in
"freeze" type environments. In that situation, you really do want
everything reachable, whether the script imported it or not.
Hmm, but that's exactly the problem. It *is* supposed to repo
I've not used it before, but I suspect it's meant to be used in
"freeze" type environments. In that situation, you really do want
everything reachable, whether the script imported it or not. It
doesn't take much to wind up importing much of the stdlib either. Try:
python -m modulefinder -m /path/t
On Wednesday, November 9, 2016 at 1:10:34 PM UTC-8, BartC wrote:
> On 09/11/2016 19:44, j...@i...edu wrote:
> Good point, I use Ubuntu under Windows. It should be child's play,
> except... 'sudo apt-get install numpy' or 'python-numpy' doesn't work.
>
> 'pip' doesn't work; it needs to be installe
On 09/11/2016 19:44, jlada...@itu.edu wrote:
On Wednesday, November 9, 2016 at 5:03:30 AM UTC-8, BartC wrote:
On 05/11/2016 17:10, Mr. Wrobel wrote:
1. What I have found is modified python interpreter - pypy -
http://pypy.org that does not require any different approach to develop
your code.
Hi,
I just used the stdlib's modulefinder.ModuleFinder (intended to find
modules used by a script) for the first time in my life and it just
doesn't seem to work like documented at all.
Not sure what is going on, but if I try the usage example from
https://docs.python.org/3/library/modulefinde
On UNIX type systems, the Python installer creates multiple links to the
actual Python executable. For example in Python 3.5:
python - link to python3.5
python3 - link to python3.5
python3.5 - actual executable
Unless your script specifically requires version 3.5, then it is better
to use the
On Thursday, November 03, 2016 3:08 AM, Heli wrote:
> I have a question about data interpolation using python. I have a big
> ascii file containg data in the following format and around 200M
> points.
>
> id, xcoordinate, ycoordinate, zcoordinate
>
> then I have a second file containing data
On Wednesday, November 9, 2016 at 5:03:30 AM UTC-8, BartC wrote:
> On 05/11/2016 17:10, Mr. Wrobel wrote:
>
> > 1. What I have found is modified python interpreter - pypy -
> > http://pypy.org that does not require any different approach to develop
> > your code.
> >
> > 2. And: Gpu based computi
On Wednesday, November 9, 2016 at 4:32:15 AM UTC-8, Rustom Mody wrote:
> https://twitter.com/UdellGames/status/788690145822306304
It took me a minute to see it. That's insane!
--
https://mail.python.org/mailman/listinfo/python-list
On 05/11/2016 04:11, DFS wrote:
It reads in a text file of the Bible, and counts the Top 20 most common
words.
http://www.truth.info/download/bible.htm
import time; start=time.clock()
import sys, string
from collections import Counter
#read fil
On Wed, Nov 9, 2016 at 6:38 AM, Steve D'Aprano
wrote:
> And here's an implementation for arbitrary n-grams:
>
>
> def ngrams(iterable, n=2):
> if n < 1:
> raise ValueError
> t = tee(iterable, n)
> for i, x in enumerate(t):
> for j in range(i):
> next(x, None
The documentation for the itertools has this nice implementation for a fast
bigram function:
from itertools import tee
def pairwise(iterable):
"s -> (s0,s1), (s1,s2), (s2, s3), ..."
a, b = tee(iterable)
next(b, None)
return zip(a, b)
https://docs.python.org/3/library/itertools.h
On 05/11/2016 17:10, Mr. Wrobel wrote:
1. What I have found is modified python interpreter - pypy -
http://pypy.org that does not require any different approach to develop
your code.
2. And: Gpu based computing powered by Nvidia (NumbaPro compiler):
https://developer.nvidia.com/how-to-cuda-pyt
https://twitter.com/UdellGames/status/788690145822306304
--
https://mail.python.org/mailman/listinfo/python-list
On Wed, 9 Nov 2016 06:35 pm, John Ladasky wrote:
[...]
> I work a lot with a package called GROMACS, which does highly iterative
> calculations to simulate the motions of atoms in complex molecules.
> GROMACS can be built to run on a pure-CPU platform (taking advantage of
> multiple cores, if you
Am 08.11.16 um 02:23 schrieb Steve D'Aprano:
But as far as I know, they [NVidia] 're not the only manufacturer of GPUs, and
they
are the only ones who support IEEE 754. So this is *exactly* the situation
I feared: incompatible GPUs with varying support for IEEE 754 making it
difficult or impossi
keskiviikko 9. marraskuuta 2016 2.25.59 UTC Steve D'Aprano kirjoitti:
> On Wed, 9 Nov 2016 10:01 am, teppo...@gmail.com wrote:
>
> > Generally, with testing, it would be optimal to test outputs of the system
> > for given inputs without caring how things are implemented.
>
> I disagree with that
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