Hi All,
I've trying to develop one Python application, and
neet to solve one problem. I need to list all classes defined in one
package (not module!).
Could anybody please show me more convinient (correct) way to
implement this?
Thanks,
Dmitry
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;}
2> python:call(P, roll, roll, [5]).
Hello from 7747
Hello from 7749
Hello from 7751
Hello from 7753
Hello from 7755
[<0.34.0>,<0.37.0>,<0.40.0>,<0.43.0>,<0.46.0>]
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http://hlabs.org
http://twitter.com/hdima
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Hello.
Has anybody already meet the problem like this? -
AttributeError: 'module' object has no attribute 'HTML_PARSE_RECOVER'
When I run scrapy, I get
File "/usr/local/lib/python2.7/site-packages/scrapy/selector/factories.py",
line 14, in
libxml2.HTML_PARSE_NOERROR + \
AttributeError: 'm
On Friday, March 1, 2019 at 12:08:00 AM UTC+3, Terry Reedy wrote:
> On 2/28/2019 11:09 AM, ast wrote:
> > Hello
> >
> > I just uploaded a package on pypi, whose name is "arith_lib"
> >
> > The strange thing is that on pypi the package is renamed "arith-lib"
> > The underscore is substitued wi
Does anybody can recomend some links on tutorials on making custom dynamic
languages or objects systems on top of cPython2 ?
I want some interactive dynamic object environment with SmallTalk look&feel but
with Python syntax.
Other tutorials I'm interested in are reflection, dynamic bytecode
(d
Hi, All
I use C++ to create new types(inherited from PyTypeObject)
and objects(inherited from PyObject) and virtual
destructor to destroy objects. sizeof() is different
for different objects and therefore i don't know what i must do
with tp_basicsize.
Will the following source code work?
Must i s
lines = string.split(servers, "\n")
> servers = []
> for line in lines:
> parts = string.split(string.strip(line))
> if not parts: continue
> servers.append(parts[0], parts[1])
> rec.servers = servers
>
> m =
> re.search("((?:(?:Administrative|Billing|Technical|Zone)
> Contact,?[]*)+:)\n", page)
> if m:
> i = m.start()
> m = re.search("Record last updated on",
> page) j = m.start()
> contacts = string.strip(page[i:j])
>
> rec.contacts =
> _ParseContacts_NetworkSolutions(contacts)
>
> return rec
>
>
> ##
> ##
> -
> -
> ##
>
> def ParseWhois(page):
> if string.find(page, "Registrar..: Register.com
> (http://www.register.com)") != -1:
> return ParseWhois_RegisterCOM(page)
> else:
> return ParseWhois_NetworkSolutions(page)
>
>
> ##
> ##
> -
> -
> ##
>
> def usage(progname):
> version = _version
> print __doc__ % vars()
>
> def main(argv, stdout, environ):
> progname = argv[0]
> list, args = getopt.getopt(argv[1:], "", ["help",
> "version",
> "test"])
>
> for (field, val) in list:
> if field == "--help":
> usage(progname)
> return
> elif field == "--version":
> print progname, _version
> return
> elif field == "--test":
> test()
> return
>
>
> for domain in args:
> try:
> page = whois(domain)
> print page
> except NoSuchDomain, reason:
> print "ERROR: no such domain %s" % domain
>
> if __name__ == "__main__":
> main(sys.argv, sys.stdout, os.environ)
>
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>
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Best regards,
Dmitry A. Lyakhovets mailto:[EMAIL PROTECTED]
visit http://www.aikido-groups.ru -- Aikido Dojo site
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>
> Regards,
>
> Fuzzy
> http://www.voidspace.org.uk/python/cgi.shtml
>
> --
> http://mail.python.org/mailman/listinfo/python-list
>
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Best regards,
Dmitry A. Lyakhovets mailto:[EMAIL PROTECTED]
visit http://www.aikido-groups.ru -- Aikido Dojo site
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mp3 and all the layers.
>
> Tooling or links also really welcome. My own googling has helped me some
but
> on the subject of VBR I get stuck.
Try mmpython.
It has something to deal with the VBR tags( XING header ).
Dmitry/
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I was looking over documentation of the bisect module and encountered the
following very strange statement there:
>From https://docs.python.org/2/library/bisect.html
...it does not make sense for the bisect() functions to have key or reversed
arguments because that would lead to an inefficient
beceuse they don't expect the container to ever become large.
On Friday, March 6, 2015 at 6:24:24 PM UTC-8, Steven D'Aprano wrote:
> Dmitry Chichkov wrote:
>
> > I was looking over documentation of the bisect module and encountered the
> > following very strange statemen
can think of:
1. Copy asyncio.queues into our package so it has a different name
2. Override sys.path
Both look really strange. Is there anything else?
Thanks,
Dmitry Panteleev
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Hello,
Yes, the fix has been merged. If 3.5.1 gets released in a month, it
should not be a problem. And looks like it dpends on
http://bugs.python.org/issue25446 .
Thank you for the information.
Dmitry
On Wed, Nov 4, 2015 at 5:52 PM, Terry Reedy wrote:
> On 11/3/2015 8:24 PM, Dmitry Pantel
ariable(s) in the target list; this
> does not affect the next item assigned to it.
In C you do not specify all the values the "looping" variable will be
assigned to, unlike (in the simplest case) you do in Python.
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Happy Hacking.
Dmitry "Sphinx" Dzhus
http://sphinx.net.ru
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> Actually I'm trying to convert a string to a list of float numbers:
> str = '53,20,4,2' to L = [53.0, 20.0, 4.0, 2.0]
str="53,20,4,2"
map(lambda s: float(s), str.split(','))
Last expression returns: [53.0, 20.0, 4.0, 2.0]
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Happy Hacking.
Dmitry &qu
Hello!
I'm using os.popen to perform lengthy operation such as building some
project from source.
It looks like this:
def execute_and_save_output( command, out_file, err_file):
import os
def execute_and_save_output( command, out_file, err_file):
(i,o,e) = os.popen3( command )
try:
> http://mail.python.org/mailman/listinfo/python-announce-list
>
> Support the Python Software Foundation:
> http://www.python.org/psf/donations.html
>
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Hello!
On 24/09/2007, Tommy Nordgren <[EMAIL PROTECTED]> wrote:
>Your problem is that you are not reading the standard output and
> standard error streams in the correct way.
> You need to do the reading of standard out and standard err in
> parallell rather than sequentially.
> The called
Hello!
I'm using subprocess.Popen in python script in vim.
It called this way:
def some_func():
p = subprocess.Popen( command , stdout = subprocess.PIPE,
stderr =
subprocess.STDOUT)
while True:
s = p.stdout.readline()
On 22/10/2007, Andy Kittner <[EMAIL PROTECTED]> wrote:
> >> Are you running this on vim or gvim? If you are running on gvim, my
> >> guess is that the handles that you are passing are not valid. In
> >> either case, try creating explicit handles that are valid (such as for
> >> /dev/null) and creat
Hello!
How to write portable (win32, unix) script that launches another
program and continues its execution?
I've looked at spawn*() but it doesn't look in PATH dirs on windows so
it's totally unusable when you don't know where exactly program is.
I've looked at fork() way but there's no fork for
Hello!
On 08/11/2007, [EMAIL PROTECTED] <[EMAIL PROTECTED]> wrote:
> Take a look at the subprocess module.
Big thanks!
It's interesting what's happening with subprocess.Popen instance after
it has been instatiated and script's main thread exits leaving
Popen'ed application open.
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Hi All !
I'm using httplib2 library in my python script for interactions with
remote web-server. Remote server responses me cookies with the set
expiration time. I'd like to extend this time. Does anybody know how
can I do it using this library ?
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Hello!
I've made some class that can be used with "with statement". It looks this way:
class chdir_to_file( object ):
...
def __enter__(self):
...
def __exit__(self, type, val, tb):
...
def get_chdir_to_file(file_path):
return chdir_to_file(file_path)
...
Snippet with obj
On Dec 19, 2007 12:14 PM, Peter Otten <[EMAIL PROTECTED]> wrote:
> def __enter__(self):
> # ...
> return self
>
> should help.
That helps. Thanks!
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Hello!
I've made a trivial xml filter to modify some attributes on-the-fly:
...
from __future__ import with_statement
import os
import sys
from xml import sax
from xml.sax import saxutils
class ReIdFilter(saxutils.XMLFilterBase):
def __init__(self, upstream, downstream):
Hello!
Here's my implementation of a function that executes some command and
drains stdout/stderr invoking other functions for every line of
command output:
def __execute2_drain_pipe(queue, pipe):
for line in pipe:
queue.put(line)
return
def execute2(command, out_f
On Wed, Mar 5, 2008 at 1:34 PM, <[EMAIL PROTECTED]> wrote:
> The Queue.get method by default is blocking. The documentation is not
> 100% clear about that (maybe it should report
> the full python definition of the function parameters, which makes
> self-evident the default value) but if you d
On Wed, Mar 5, 2008 at 3:39 PM, <[EMAIL PROTECTED]> wrote:
> time.sleep() pauses ony the thread that executes it, not the
> others. And queue objects can hold large amount of data (if you have
> the RAM),
> so unless your subprocess is outputting data very fast, you should not
> have data los
>
> I had no problem with using standard gettext way of doing i18n on
> Windows with PyGTK an Glade, apart some quirks with LANG environment
> variable. Basically, the code that works looks like this:
>
> import gettext, locale
> locale.setlocale(locale.LC_ALL, '')
> if os.name == 'nt':
Hello!
I use some script in python 2.5 from vim editor (it has python
bindings) that updates some file
and then launches another program (ms visual studio, for example) to
do something with updated file.
I faced problem when updated file is locked for writing until vim
editor is closed.
launch vim
On Wed, May 14, 2008 at 8:18 AM, Gabriel Genellina
<[EMAIL PROTECTED]> wrote:
> En Tue, 13 May 2008 11:57:03 -0300, Dmitry Teslenko <[EMAIL PROTECTED]>
> Is the code above contained in a function? So all references are released
> upon function exit?
Yes, it's a function
On Wed, May 14, 2008 at 11:04 AM, Dmitry Teslenko <[EMAIL PROTECTED]> wrote:
> When I've rewrite code something like that:
>with open(backup_file_name, 'w') as backup_file:
>.
>
>filter.parse('
Hello!
I have simple chat application with pygtk UI. I want some event (for
example update user list) to have place every n seconds.
What's the best way to archive it?
I tried threading.Timer but result is following: all events wait till
exit of gtk main loop and only then they occur.
Thanks in adv
2008/4/14 Jarek Zgoda <[EMAIL PROTECTED]>:
> > I have simple chat application with pygtk UI. I want some event (for
> > example update user list) to have place every n seconds.
> > What's the best way to archive it?
> > I tried threading.Timer but result is following: all events wait till
> >
I mean, it's very convenient when default parameters
can be in any position, like
def a_func(x = 2, y = 1, z):
...
(that defaults must go last is really a C++ quirk which
is needed for overload resolution, isn't it?)
and when calling, just omit parameter when you want to
use defaults:
a_func(,
Some example (from real life).
def ChooseItems(StartDate, EndDate, Filter):
#function returns a set of some items in chronological order
#from required interval possibly using filter
ChooseItems() #get everything
ChooseItems('01.01.2000', ,SomeFilter) #get everything after a date using filter
Choo
Some example (from real life).
def ChooseItems(StartDate, EndDate, Filter):
#function returns a set of some items in chronological order
#from required interval possibly using filter
ChooseItems() #get everything
ChooseItems('01.01.2000', ,SomeFilter) #get everything after a date using filter
Choo
doc says that it must be > 0, or < 0, but it seems that
it returns +1 or -1. Can it be reliably used to get the sign of x:
cmp(x, 0) like pascal Sign() function does? I mean, I'm
pretty sure that it can be used, but is it mentioned somewhere
in language spec, or it may be implementation defined?
If
I want to read stdin in chunks of fixed size until EOF
I want to be able (also) to supply data interactively in console
window and then to hit Ctrl+Z when finished
So what I do is:
while True:
s = sys.stdin.read(chunk_size)
if not s:
break
# do something with s
if stdin is standar
Hello!
I'm making gui gtk application. I'm using pypcap
(http://code.google.com/p/pypcap/) to sniff some network packets.
To avoid gui freezing I put pcap call to another thread.
Pypcap call looks like:
pc = pcap.pcap()
pc.setfilter('tcp')
for ts, pkt in pc:
spkt = str(pkt)
...
Sa
On Wed, Dec 30, 2009 at 16:18, aspineux wrote:
> On Dec 30, 1:34 pm, Dmitry Teslenko wrote:
>> Hello!
>> I'm making gui gtk application. I'm using pypcap
>> (http://code.google.com/p/pypcap/) to sniff some network packets.
>> To avoid gui freezing I put p
On Wed, Dec 30, 2009 at 18:25, aspineux wrote:
> On Dec 30, 3:07 pm, Dmitry Teslenko wrote:
>> On Wed, Dec 30, 2009 at 16:18, aspineux wrote:
>> > On Dec 30, 1:34 pm, Dmitry Teslenko wrote:
>> >> Hello!
>> >> I'm making gui gtk application. I
Hello!
I have simple gui gtk app. It has worker thread that populates list
with strings and gtk window with main loop which pops strings
from this list and shows them in TreeView.
Thread runs get_data_from_pcap to populate list with strings.
Gtk app calls update_store() with gobject.timeout_add ev
Here are some proposals. They are quite useful at my opinion and I'm
interested for suggestions. It's all about some common patterns.
First of all: how many times do you write something like
t = foo()
t = t if pred(t) else default_value
? Of course we can write it as
t = foo() if pred(f
On Nov 15, 9:39 am, Dmitry Groshev wrote:
> Here are some proposals. They are quite useful at my opinion and I'm
> interested for suggestions. It's all about some common patterns.
> First of all: how many times do you write something like
> t = foo()
> t = t if p
On Nov 15, 9:48 am, Chris Rebert wrote:
> On Sun, Nov 14, 2010 at 10:39 PM, Dmitry Groshev
> wrote:
> > Here are some proposals. They are quite useful at my opinion and I'm
> > interested for suggestions. It's all about some common patterns.
>
> > Second,
On Nov 15, 10:30 am, alex23 wrote:
> On Nov 15, 4:39 pm, Dmitry Groshev wrote:
>
> > First of all: how many times do you write something like
> > t = foo()
> > t = t if pred(t) else default_value
> > ? Of course we can write it as
> > t = foo
On Nov 15, 12:03 pm, alex23 wrote:
> On Nov 15, 5:50 pm, Dmitry Groshev wrote:
>
> > On Nov 15, 10:30 am, alex23 wrote:
> > > Personally, I like keeping object attribute references separate from
> > > dictionary item references.
>
> > Your Python doe
On Nov 22, 2:21 pm, Andreas Löscher wrote:
> > if x in range(a, b): #wrong!
> > it feels so natural to check it that way, but we have to write
> > if a <= x <= b
> > I understand that it's not a big deal, but it would be awesome to have
> > some optimisations - it's clearly possible to det
Is there any way to use a true lists (with O(c) insertion/deletion and
O(n) search) in python? For example, to make things like reversing
part of the list with a constant time.
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On Dec 19, 9:18 am, Dmitry Groshev wrote:
> Is there any way to use a true lists (with O(c) insertion/deletion and
> O(n) search) in python? For example, to make things like reversing
> part of the list with a constant time.
I forgot to mention that I mean *fast* lists. It's trivia
On Dec 19, 9:48 am, Vito 'ZeD' De Tullio
wrote:
> Dmitry Groshev wrote:
> > Is there any way to use a true lists (with O(c) insertion/deletion and
> > O(n) search) in python? For example, to make things like reversing
> > part of the list with a constant time.
&
Hello
Help please with such problem:
I need to build program object graph (data structure) with additional
parameters for nodes and edges:
include nxgraph # data structure module allowes any py objects for
node/edge id
# (nxgraph ignores 2+ node/edge adding thus no checking need at node/
edge ad
Hello all. Some time ago I wrote a little library:
http://github.com/si14/python-functional-composition/ , inspired by
modern functional languages like F#. In my opinion it is quite useful
now, but I would like to discuss it.
An example of usage:
import os
from pyfuncomp import composable, c, _
d
On Aug 29, 5:14 am, Steven D'Aprano wrote:
> On Sat, 28 Aug 2010 21:30:39 +0400, Dmitry Groshev wrote:
> > Hello all. Some time ago I wrote a little library:
> >http://github.com/si14/python-functional-composition/, inspired by
> > modern functional languages like F#.
Given: a large list (10,000,000) of floating point numbers;
Task: fastest python code that finds k (small, e.g. 10) smallest
items, preferably with item indexes;
Limitations: in python, using only standard libraries (numpy & scipy
is Ok);
I've tried several methods. With N = 10,000,000, K = 10 The
Uh. I'm sorry about the confusion. Last three items are just O(N)
baselines. Python min(), Numpy argmin(), Numpy asarray().
I'll update the code. Thanks!
> A lot of the following doesn't run or returns incorrect results.
> To give but one example:
>
> > def nargsmallest_numpy_argmin(iter, k):
> >
By the way, improving n-ARG-smallest (that returns indexes as well as
values) is actually more desirable than just regular n-smallest:
== Result ==
1.38639092445 nargsmallest
3.1569879055 nargsmallest_numpy_argsort
1.29344892502 nargsmallest_numpy_argmin
Note that numpy array constructor eats aro
wrote:
> On 9/1/2010 9:08 PM, Dmitry Chichkov wrote:
>
>
> Your problem is underspecified;-).
> Detailed timing comparisons are only valid for a particular Python
> version running under a particular OS on particular hardware. So, to
> actually run a contest, you would have to
sychological claim" in that context.
It is obvious that different
medium of information exchange provides
different levels of readability for humans.
And accordingly easier/harder to learn/use.
Regards, Dmitry
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Hi,
after hearing a lot about decorators and never actually using one I have
decided to give it a try. My particular usecase is that I have class that
acts as a proxy to other classes (i.e. passes messages along to those
classes) however hand-coding this type of class is rather tedious, so I
decid
[EMAIL PROTECTED] wrote:
> Your code below is very abstract, so it's kind of hard to figure out
> what problem you're trying to solve, but it seems to me that you're
> using the B proxy class to decorate the A target class, which means
> you want one of these options:
Sorry for unclarities in orig
Aaron "Castironpi" Brady wrote:
> It might help to tell us the order of events that you want in your
> program. You're not using 'mymethod' or 'mymethod2', and you probably
> want 'return fnew' for the future. Something dynamic with __getattr__
> might work. Any method call to A, that is an A
Dmitry S. Makovey wrote:
> In my real-life case A is a proxy to B, C and D instances/objects, not
> just one.
forgot to mention that above would mean that I need to have more than one
decorator function like AproxyB, AproxyC and AproxyD or make Aproxy smarter
about which property of
Diez B. Roggisch wrote:
> Dmitry S. Makovey schrieb:
>> Dmitry S. Makovey wrote:
>>> In my real-life case A is a proxy to B, C and D instances/objects, not
>>> just one.
>>
>> forgot to mention that above would mean that I need to have more than one
>
Thanks Bruno,
your comments were really helpful (so was the "improved" version of code).
My replies below:
Bruno Desthuilliers wrote:
>> So decorators inside of B just identify that those methods will be
>> proxied by A. On one hand from logical standpoint it's kind of weird to
>> tell class th
Aaron "Castironpi" Brady wrote:
> You should write it like this:
>
> class B(object):
> @A.proxy
> def bmethod(self,a):
>
> Making 'proxy' a class method on A.
makes sense.
> In case different A instances (do
> you have more than one BTW?)
yep. I have multiple instances of class
Aaron "Castironpi" Brady wrote:
>> I kept this part of the problem out of this discussion as I'm pretty sure
>> I can fill those in once I figure out the basic problem of
>> auto-population of proxy methods since for each class/method those are
>> going to be nearly identical. If I can autogenerate
Scott Sharkey wrote:
> Any insight into the best way to have a consistent, repeatable,
> controllable development and production environment would be much
> appreciated.
you have just described OS package building ;)
I can't speak for everybody, but supporting multiple platforms (PHP, Perl,
Pytho
George Sakkis wrote:
> I'm not sure if the approach below deals with all the issues, but one
> thing it does is decouple completely the proxied objects from the
> proxy:
> class _ProxyMeta(type):
It smelled to me more and more like metaclass too, I was just trying to
avoid them :)
Your code
Diez B. Roggisch wrote:
> - different OS. I for one don't know about a package management tool
> for windows. And while our servers use Linux (and I as developer as
> well), all the rest of our people use windows. No use telling them to
> apt-get instal python-imaging.
that is a very valid poin
Diez B. Roggisch wrote:
> Well, you certainly want a desktop-orientied Linux for users, so you
> chose ubuntu - but then on the server you go with a more stable debian
> system. Even though the both have the same technical and even package
> management-base, they are still incompatible wrt to packa
Paul McGuire wrote:
>> see, in your code you're assuming that there's only 1 property ( 'b' )
>> inside of A that needs proxying. In reality I have several.
>
> No, really, Diez has posted the canonical Proxy form in Python, using
> __getattr__ on the proxy, and then redirecting to the contained
Bruno Desthuilliers wrote:
> Hem... I'm afraid you don't really take Python's dynamic nature into
> account here. Do you know that even the __class__ attribute of an
> instance can be rebound at runtime ? What about 'once and for all' then ?
must've been wrong wording on my part. Dynamic nature is
Aaron "Castironpi" Brady wrote:
> That prohibits using a descriptor in the proxied classes, or at least
> the proxied functions, since you break descriptor protocol and only
> call __get__ once. Better to cache and get by name. It's only slower
> by the normal amount, and technically saves space,
George Sakkis wrote:
> You seem to enjoy pulling the rug from under our feet by changing the
> requirements all the time :)
but that's half the fun! ;)
Bit more seriously - I didn't know I had those requirements until now :) I'm
kind of exploring where can I get with those ideas. Initial post was
George Sakkis wrote:
> It's funny how often you come with a better solution a few moments
> after htting send! The snippet above can (ab)use the decorator syntax
> so that it becomes:
>
> class A(Proxy):
>
> @ProxyMethod
> def bmethod(self):
> return self.b1
>
> @ProxyMethod
George Sakkis wrote:
> FYI, in case you missed it the final version doesn't need a Proxy base
> class, just inherit from object. Also lowercased ProxyMethod to look
> similar to staticmethod/classmethod:
I cought that, just quoted the wrong one :)
> class A(object):
>
> def __init__(self, b1
disclaimer: I'm not affiliated with any company selling Plone services ;)
I also have nothing against Django and such.
Ken Seehart wrote:
> I want a new python based CMS. ... One that won't keep me up all night
>
>
> I've been fooling around with zope and plone, and I like plone for some
ral always starts with
decimal digit. That makes things simple for a descent recursive parser. I
guess this choice was intentional, back in 1983 a complex parser would eat
too much resources...
--
Regards,
Dmitry A. Kazakov
http://www.dmitry-kazakov.de
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modules? If there are any differences, I would
really appreciate any comments on this.
Regards,
Dmitry Popov
Lemont, IL
USA
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Thank you!
From: Python-list on behalf of
Greg Ewing via Python-list
Sent: Wednesday, May 8, 2024 3:56 AM
To: python-list@python.org
Subject: Re: Use of statement 'global' in scripts.
On 8/05/24 1: 32 pm, Popov, Dmitry Yu wrote: > The stat
What would be the easiest way to learn which version of NumPy I have with my
Anaconda distribution?
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Thank you.
From: Larry Martell
Sent: Wednesday, May 15, 2024 1:55 PM
To: Popov, Dmitry Yu
Cc: Popov, Dmitry Yu via Python-list
Subject: Re: Version of NymPy
On Wed, May 15, 2024 at 2: 43 PM Popov, Dmitry Yu via Python-list wrote: > > What would be the e
ctors along axis
0: [1,2,3]. Those triples of numbers along axis 1 with the factor of1 or -1
would be relatively prime integers.
Regards,
Dmitry Popov
Argonne, IL
USA
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vely prime integers h,k,l pass to this
block of the code
From: avi.e.gr...@gmail.com
Sent: Thursday, July 11, 2024 1:22 PM
To: Popov, Dmitry Yu ; 'Popov, Dmitry Yu via Python-list'
Subject: RE: Relatively prime integers in NumPy
Дмитрий, You may think you explained what you
)
hkl_list.append(hkl_local)
hkl=np.array(hkl_list, dtype=np.int64)
This code will generate a two-dimensional ndarray of h,k,l indices but is it
possible to make a faster routine with NumPy?
Regards,
Dmitry
From: Python-list on behalf of
Popov
Thank you very much. List comprehensions make code much more concise indeed. Do
list comprehensions also improve the speed of calculations?
From: avi.e.gr...@gmail.com
Sent: Friday, July 12, 2024 6:57 PM
To: Popov, Dmitry Yu ; 'Popov, Dmitry Yu via Python
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