Re: Calling pselect/ppoll/epoll_pwait

On 12/2/22 14:00, Ian Pilcher wrote: Does Python provide any way to call the "p" variants of the I/O multiplexing functions? Just to close this out ... As others suggested, there's no easy way to call the "p" variants of the I/O multiplexing functions, but thi

set.add() doesn't replace equal element

I just discovered this behavior, which is problematic for my particular use. Is there a different set API (or operator) that can be used to add an element to a set, and replace any equal element? If not, am I correct that I should call set.discard() before calling set.add() to achieve the behavi

Re: set.add() doesn't replace equal element

On 12/30/22 15:47, Paul Bryan wrote: What kind of elements are being added to the set? Can you show reproducible sample code? The objects in question are DHCP leases. I consider them "equal" if the lease address (or IPv6 prefix) is equal, even if the timestamps have changed. That code is not

Re: set.add() doesn't replace equal element

On 12/30/22 17:00, Paul Bryan wrote: It seems to me like you have to ideas of what "equal" means. You want to update a "non-equal/equal" value in the set (because of a different time stamp). If you truly considered them equal, the time stamp would be irrelevant and updating the value in the set

Tool that can document private inner class?

I've been banging my head on Sphinx for a couple of days now, trying to get it to include the docstrings of a private (name starts with two underscores) inner class. All I've managed to do is convince myself that it really can't do it. See https://github.com/sphinx-doc/sphinx/issues/11181. Is t

Re: Tool that can document private inner class?

On 2/7/23 14:53, Weatherby,Gerard wrote: Yes. Inspect module import inspect class Mine: def __init__(self): self.__value = 7 def __getvalue(self): /"""Gets seven""" /return self.__value mine = Mine() data = inspect.getdoc(mine) for m in inspect.getmembers(mine): if '__getvalue' in m[0]:

Re: Tool that can document private inner class?

On 2/8/23 08:25, Weatherby,Gerard wrote: No. I interpreted your query as “is there something that can read docstrings of dunder methods?” Have you tried the Sphinx specific support forums? https://www.sphinx-doc.org/en/master/support.html Yes. I've posted to both the -user and -dev group

Which more Pythonic - self.__class__ or type(self)?

Seems like an FAQ, and I've found a few things on StackOverflow that discuss the technical differences in edge cases, but I haven't found anything that talks about which form is considered to be more Pythonic in those situations where there's no functional difference. Is there any consensus? --

Re: neoPython : Fastest Python Implementation: Coming Soon

I wish you best of luck, on top of everything else it looks like the neopython namespace has already been eaten up by some crypto project On Wed, May 5, 2021 at 11:18 AM Benjamin Schollnick < bscholln...@schollnick.net> wrote: > > Why? The currently extant Python implementations contribute to cli

Re: Comparing sequences with range objects

n 0 # They are equal and key data for both is present 2) Sort the data using the comparator function. 3) Run through the data with a trailing enumeration loop, merging matching records together. 4) If there are no records copied out with missing key data, then you are done, so exit. 5) Choose

Re: Python slang

On Aug 10, 2016 4:36 PM, "Lawrence D’Oliveiro" wrote: On Thursday, August 11, 2016 at 5:35:03 AM UTC+12, Rustom Mody wrote: > On Wednesday, August 10, 2016 at 9:31:40 PM UTC+5:30, Anders J. Munch wrote: > Python’s inspiration and origin is ABC > Whose assignment looked like > PUT expr INTO var

Re: I am new to python. I have a few questions coming from an armature!

On Aug 15, 2016 6:57 PM, "Lawrence D’Oliveiro" wrote: Python, on the other hand, introduces the special word “lambda” for this purpose, eschewing its usual “def”. Why? Something to do with GvR’s allergy to anonymous functions... Actually, GvR is on record stating that he's never much cared fo

Re: I am new to python. I have a few questions coming from an armature!

On Aug 16, 2016 12:36 AM, "Lawrence D’Oliveiro" wrote: On Tuesday, August 16, 2016 at 6:26:01 PM UTC+12, Paul Rudin wrote: > sohcahtoa82 writes: >> squared_plus_one_list = map(lambda x: x**2 + 1, some_list) > > I realise that this is about understanding lambda, but it's worth noting > in passing

Re: I am new to python. I have a few questions coming from an armature!

On Aug 16, 2016 12:57 AM, "Lawrence D’Oliveiro" wrote: I see. I thought I saw a mention somewhere else that Python lambdas were designed to be less functional than full def-style functions. But perhaps this limitation wasn’t intentional, just an inherent consequence of the fact that Python’s si

Re: Why monkey patching on module object doesn't work ?

On Wed, Aug 17, 2016 at 10:14 PM, Shiyao Ma wrote: > Hi, > > I am using Python2. > > For the following snippet, > > http://ideone.com/i36pKO > > I'd suppose the dummy_func would be invoked, but seems not. > > Indeed, heapq.heapify does invoke cmp_lt per here: > https://hg.python.org/cpython/file/2

Re: Why don't we call the for loop what it really is, a foreach loop?

On Tue, Sep 13, 2016 at 2:57 PM, wrote: > It would help newbies and prevent confusion. Ada uses "for". C++11 uses "for". Dart uses "for". Go uses "for". Groovy uses "for". Java uses "for". JavaScript uses "for". MATLAB uses "for". Objective-C uses "for". Pasceal uses "for". Perl moved from "fore

Re: Linear Time Tree Traversal Generator

On Tue, Sep 20, 2016 at 11:03 AM, Rob Gaddi wrote: > The only thing that's O(N log N) in that is the number of actual yield > calls. If you're doing pretty much anything with those values as > they're being iterated over then they'll dominate the timing, and that > is O(N). It's fair to say that

Re: Is there a way to change the closure of a python function?

On Tue, Sep 27, 2016 at 8:41 AM, jmp wrote: > On 09/27/2016 04:01 PM, Peng Yu wrote: >> >> Hi, In many other functional language, one can change the closure of a >> function. Is it possible in python? >> >> http://ynniv.com/blog/2007/08/closures-in-python.html >> > > If I understood correctly your

Re: Is there a way to change the closure of a python function?

On Tue, Sep 27, 2016 at 3:19 PM, Terry Reedy wrote: > On 9/27/2016 11:01 AM, Chris Angelico wrote: >> >> On Wed, Sep 28, 2016 at 12:01 AM, Peng Yu wrote: >>> >>> Hi, In many other functional language, one can change the closure of a >>> function. Is it possible in python? >>> >>> http://ynniv.com

Re: Is it possible to use 'groupby' asynchronously?

On Thu, Oct 6, 2016 at 9:57 AM, Chris Angelico wrote: > On Thu, Oct 6, 2016 at 11:09 PM, Frank Millman wrote: >> Hi all >> >> I have used itertools.groupby before, and I love it. I used it to process a >> csv file and 'break' on change of a particular field. It worked very well. >> >> Now I want

Re: Function to take the minimum of 3 numbers

On Oct 9, 2016 2:57 PM, wrote: On Sunday, October 9, 2016 at 2:41:41 PM UTC+1, BartC wrote: > def min3(a,b,c): > if a<=b and a<=c: > return a > elif b<=a and b<=c: > return b > else: > return c The Pythonic way if b >= a <= c: ... Better: if a <=

Re: Inplace shuffle function returns none

On Tue, Oct 18, 2016 at 2:25 PM, Sayth Renshaw wrote: > So why can't i assign the result slice to a variable b? > > It just keeps getting none. Because shuffle returns none. If you want to keep both the original list and the shuffled list, then do something like: b = a[:] shuffle(b) print(a) pri

Re: How to execute "gksudo umount VirtualDVD"

On Thu, Oct 27, 2016 at 3:30 PM, Demosthenes Koptsis wrote: > I want to execute the command "gksudo umount VirtualDVD" > > My code is this but it fails: > > def umount(self): > '''unmounts VirtualDVD''' cmd ='gksudo umount VirtualDVD' proc = > subprocess.Popen(str(cmd),shell=True,stdout=subpro

Re: Released: pip v9.0.0

Pick check? ;-) On Nov 2, 2016 2:27 PM, "Donald Stufft" wrote: > I’d like to announce the release of pip v9.0. > > This release features: > > * The 9.x series will be the last pip versions to support Python 2.6. > * Support for Requires-Python (will require additional support in > setuptools/PyP

Re: N-grams

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

Re: Python rules!

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

Re: N-grams

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

Re: how to multiply two matrices with different size?

On Fri, Nov 18, 2016 at 6:51 PM, wrote: > Hi :) > I'm trying to multiply two matrices that has different size. > > -code- > > import numpy as np > > a = np.random.randn(4, 3) > b = np.random.randn(4, 1) > > print a > print b > >

Re: How to append a modified list into a list?

On Nov 18, 2016 6:47 PM, wrote: I have a working list 'tbl' and recording list 'm'. I want to append 'tbl' into 'm' each time when the 'tbl' was modified. I will record the change by append it through the function 'apl'. For example: >>>tbl=[0,0] >>>m=[] >>>tbl[0]=1 >>>apl(tbl) >>>m [[1,0]] >

Re: Extra base class in hierarchy

On Nov 19, 2016 11:22 AM, "Victor Porton" wrote: Consider class FinalTreeNode(object): def childs(self): return [] class UsualTreeNode(FinalTreeNode) def childs(self): return ... In this structure UsualTreeNode derives from FinalTreeNode. This looks odd because "final

Re: The Case Against Python 3

On Fri, Nov 25, 2016 at 1:29 AM, Mark Summerfield wrote: > The article has a section called: > > "Too Many Formatting Options" > > He's right! The % formatting was kept to help port old code, the new > .format() which is far more versatile is a bit verbose, so finally they've > settled on f-

Re: Asyncio -- delayed calculation

On Mon, Nov 28, 2016 at 5:48 AM, Steve D'Aprano wrote: > Let's pretend that the computation can be performed asynchronously, so that > I can have all five Counter objects counting down in parallel. I have this: > > > import asyncio > > class Counter: > def __init__(self): > self.count

Re: async enumeration - possible?

On Tue, Nov 29, 2016 at 7:25 AM, Frank Millman wrote: > However, it does not allow you to enumerate over the generator output - > async def main(): > > ... c = counter(5) > ... async for j, k in enumerate(c): > ... print(j, k) > ... print('done') > ... loop.run_until_compl

Re: Asyncio -- delayed calculation

On Mon, Nov 28, 2016 at 10:42 PM, Chris Angelico wrote: > On Tue, Nov 29, 2016 at 4:13 PM, Paul Rubin wrote: >> >> I haven't gotten my head around Python asyncio and have been wanting >> to read this: >> >>http://lucumr.pocoo.org/2016/10/30/i-dont-understand-asyncio/ > > It's talking a lot ab

Re: async enumeration - possible?

On Tue, Nov 29, 2016 at 8:22 PM, Chris Angelico wrote: > Interestingly, I can't do that in a list comp: > [x async for x in aiterable] > File "", line 1 > [x async for x in aiterable] >^ > SyntaxError: invalid syntax > > Not sure why. Because you tried to use an async compr

Re: async enumeration - possible?

On Wed, Nov 30, 2016 at 12:53 AM, Marko Rauhamaa wrote: > I have a couple of points to make with my question: > > * We are seeing the reduplication of a large subset of Python's >facilities. I really wonder if the coroutine fad is worth the price. I don't think there's any technical reason w

Re: async enumeration - possible?

On Wed, Nov 30, 2016 at 1:20 AM, Chris Angelico wrote: > Hmm. The thing is, comprehensions and generators are implemented with > their own nested functions. So I would expect that their use of async > is independent of the function they're in. But maybe we have a bug > here? > async def spam(

Re: async enumeration - possible?

On Wed, Nov 30, 2016 at 1:29 AM, Frank Millman wrote: > "Marko Rauhamaa" wrote in message news:87d1hd4d5k@elektro.pacujo.net... >> >> >> One of the more useful ones might be: >> >> o = await anext(ait) >> > > Definitely! > > But I found it easy to write my own - > > async def anext(aiter)

Re: async enumeration - possible?

On Wed, Nov 30, 2016 at 2:28 AM, Marko Rauhamaa wrote: > "Frank Millman" : > >> "Marko Rauhamaa" wrote in message news:87d1hd4d5k@elektro.pacujo.net... >>> I don't think bulk iteration in asynchronous programming is ever that >>> great of an idea. You want to be prepared for more than one

Re: Timer runs only once.

On Wed, Nov 30, 2016 at 8:06 AM, siva gnanam wrote: > On Wednesday, November 30, 2016 at 8:11:49 PM UTC+5:30, vnthma...@gmail.com > wrote: >> from threading import Timer >> >> class TestTimer: >> def foo(self): >> print("hello world") >> self.startTimer() >> >> def startTi

Re: async enumeration - possible?

On Wed, Nov 30, 2016 at 5:05 PM, Steve D'Aprano wrote: > On Wed, 30 Nov 2016 07:51 pm, Ian Kelly wrote: > >> On Wed, Nov 30, 2016 at 1:29 AM, Frank Millman wrote: > >>> But I found it easy to write my own - >>> >>> async def anext(aiter): >>&

Re: async enumeration - possible?

On Wed, Nov 30, 2016 at 8:34 PM, Ian Kelly wrote: > To be pedantic, it should be more like: > > return type(aiter).__dict__['__anext__']() And of course, if you don't find it there then to be proper you also have to walk the MRO and check all of those class

Re: Asyncio -- delayed calculation

On Thu, Dec 1, 2016 at 12:53 AM, Christian Gollwitzer wrote: > well that works - but I think it it is possible to explain it, without > actually understanding what it does behind the scences: > > x = foo() > # schedule foo for execution, i.e. put it on a TODO list This implies that if you never a

Re: When will they fix Python _dbm?

On Mon, Dec 5, 2016 at 7:45 AM, clvanwall wrote: > I have been a Perl programmer for 15+ years and decided to give Python a try. > My platform is windows and I installed the latest 3.5.2. Next I decided to > convert a perl program that uses a ndbm database since according to the doc > on pytho

Re: When will they fix Python _dbm?

On Dec 6, 2016 4:04 PM, wrote: On Tuesday, December 6, 2016 at 9:35:19 PM UTC, Ian wrote: > On Mon, Dec 5, 2016 at 7:45 AM, clvanwall wrote: > > I have been a Perl programmer for 15+ years and decided to give Python a try. My platform is windows and I installed the latest 3.5.2. Next

Re: % string formatting - what special method is used for %d?

On Sat, Dec 10, 2016 at 11:40 PM, Veek M wrote: > Well take a look at this: > ### > #!/usr/bin/python > > class Foo(int): > def __init__(self, value): > self.value = value > > def __str__(self): > print '__str__' > return str(

Re: asyncio question

On Tue, Dec 13, 2016 at 6:15 AM, Frank Millman wrote: > The client uses AJAX to send messages to the server. It sends the message > and continues processing, while a background task waits for the response and > handles it appropriately. As a result, the client can send a second message > before re

Re: Recipe request: asyncio "spin off coroutine"

On Wed, Dec 14, 2016 at 12:53 PM, Chris Angelico wrote: > On Thu, Dec 15, 2016 at 6:27 AM, Marko Rauhamaa wrote: >> Chris Angelico : >> >>> asyncio.spin_off(parallel()) # ??? >>> >>> [...] >>> >>> What code should go on the "???" line to accomplish this? >> >> asyncio.ensure_future(parallel()

Re: Python constructors have particular semantics, and ‘Foo.__init__’ doesn't qualify

On Thu, Dec 15, 2016 at 11:05 AM, Terry Reedy wrote: > On 12/14/2016 11:14 PM, Thomas 'PointedEars' Lahn wrote: > >> According to >> , >> “Foo.__init__” is _not_ an instance method. Were it an instance >> method, the following would

Re: Metaclasses - magic functions

On Tue, Dec 20, 2016 at 2:04 PM, Mr. Wrobel wrote: > Hi, > > Quick question, can anybody tell me when to use __init__ instead of __new__ > in meta programming? > > I see that __new__ can be used mostly when I want to manipulate with class > variables that are stored into dictionary. > > But when t

Re: US/Eastern offset

On Thu, Dec 22, 2016 at 2:49 PM, Skip Montanaro wrote: > In a small application I realized I needed all my timestamps to have > timezone info. Some timestamp strings come in with no TZ markings, but > I know they are US/Eastern. so, I built one: > import pytz tz = pytz.timezone("US/Easte

Re: US/Eastern offset

On Thu, Dec 22, 2016 at 4:19 PM, Ian Kelly wrote: > On Thu, Dec 22, 2016 at 2:49 PM, Skip Montanaro > wrote: >> In a small application I realized I needed all my timestamps to have >> timezone info. Some timestamp strings come in with no TZ markings, but >> I know th

Re: Metaclasses - magic functions

On Fri, Dec 23, 2016 at 5:14 AM, Mr. Wrobel wrote: > Hi,thanx for answers, let's imagine that we want to add one class attribute > for newly created classess with using __init__ in metaclass, here's an > example: > > #!/usr/bin/env python > > class MetaClass(type): > # __init__ manipulation: >

Re: sorting strings numerically while dealing with missing values

On Wed, Dec 28, 2016 at 2:14 PM, Larry Martell wrote: > > I have a list containing a list of strings that I want to sort > numerically by one of the fields. I am doing this: > > sorted(rows, key=float(itemgetter(sortby))) I'm guessing that you left out a lambda here since the key argument takes a

Re: sorting strings numerically while dealing with missing values

On Wed, Dec 28, 2016 at 2:43 PM, Ian Kelly wrote: > On Wed, Dec 28, 2016 at 2:14 PM, Larry Martell > wrote: >> >> I have a list containing a list of strings that I want to sort >> numerically by one of the fields. I am doing this: >> >> sorted(rows, ke

Re: learning and experimenting python.

On Fri, Dec 30, 2016 at 11:50 AM, wrote: > Hello everyone, > I am the new comer and learner of python. > I have a doubt that when I type python and press enter it shows a prompt like > But why it is >>> ? > Is there any special reason? > Why it is not setted as @,& or any other special chara

Re: learning and experimenting python.

On Dec 30, 2016 4:42 PM, wrote: Yes, I am not confusing you all, rather I thought that this is the best place to solve any doubts, soy only question for you is Why python uses >>> instead of >, or any other special characters? Do you know about this, if yes then please answer it. I will be so mu

Re: learning and experimenting python.

On Fri, Dec 30, 2016 at 6:05 PM, wrote: > But in his website, he recommended that post your questions here, he will > answer it. > But still as you told me I will send him an personal e-mail. This is a good place for asking questions about Python, but you should know that Guido himself doesn't

Re: Problem with running python 3.6.0 on a 32 bit windows 7 ultimate operating system.

On Fri, Dec 30, 2016 at 10:53 PM, Sagar Utlas wrote: > I am new to python, I've been using C++ as as a student till last 3 years. > To expand my knowledge, I installed Python 3.6.0 and when tried to open it, > a pop up window appeared saying- "The program can't start because > api-ms-win-crt-runti

Re: learning and experimenting python.

On Dec 31, 2016 1:48 AM, "mm0fmf" wrote: On 30/12/2016 17:50, einstein1...@gmail.com wrote: > Hello everyone, > I am the new comer and learner of python. > I have a doubt that when I type python and press enter it shows a prompt > like > >> But why it is >>> ? > Is there any special reason?

Re: learning and experimenting python.

On Dec 31, 2016 3:12 AM, wrote: That's true. Please include quoted context in your replies. I have no idea who or what you're responding to. -- https://mail.python.org/mailman/listinfo/python-list

Re: New re feature in 3.6: local flags and example use

On Sun, Jan 1, 2017 at 8:25 PM, Terry Reedy wrote: \> 3.6 added syntax for 'local flags'. > ''' > (?imsx-imsx:...) > > (Zero or more letters from the set 'i', 'm', 's', 'x', optionally > followed by '-' followed by one or more letters from the same set.) The > letters set or removes the corres

Re: learning and experimenting python.

On Sun, Jan 1, 2017 at 11:30 AM, Grant Edwards wrote: > On 2016-12-31, Ian Kelly wrote: >> On Dec 31, 2016 3:12 AM, wrote: >> >> That's true. >> >> Please include quoted context in your replies. I have no idea who or what >> you're respon

Re: learning and experimenting python.

On Mon, Jan 2, 2017 at 12:15 AM, Ian Kelly wrote: > Since they're unlikely to do that however, Then again, I see that einstein1410 made a couple of rather aggressive posts 11 hours ago that haven't made it to my email, so maybe he did manage to get himself banned. -- https://ma

Re: learning and experimenting python.

On Jan 2, 2017 10:57 AM, "Wildman via Python-list" wrote: On Sun, 01 Jan 2017 23:02:34 -0800, einstein1410 wrote: > I really don't care the person like you. > Leave my posts, if don't like it. > Why wasting your as well as my time. > Just get lost man, or shut up. [Obscene gesture trimmed] Way

Re: Is there an peekable similar to peekable but in additional allowing one to put some data to it?

On Wed, Jan 11, 2017 at 8:51 AM, Peng Yu wrote: > Hi, peekable from more-itertools only allow peeking an iterator. But > sometimes, one may want to take a look at an element, manipulate it, > then put it back to the iterator. Is there a class in python that can > help do this? Not that I'm aware

Re: Is there an peekable similar to peekable but in additional allowing one to put some data to it?

On Wed, Jan 11, 2017 at 10:07 AM, Ian Kelly wrote: > On Wed, Jan 11, 2017 at 8:51 AM, Peng Yu wrote: >> Hi, peekable from more-itertools only allow peeking an iterator. But >> sometimes, one may want to take a look at an element, manipulate it, >> then put it back to the

Re: Byte-run: a Python interpreter written in Python

On Fri, Jan 13, 2017 at 3:46 AM, Steve D'Aprano wrote: > > http://aosabook.org/en/500L/a-python-interpreter-written-in-python.html Neat. But not really surprising IMO that it can fit into 500 lines, since it doesn't handle compiling Python into bytecode (which is the hard part) and doesn't includ

Re: Byte-run: a Python interpreter written in Python

On Fri, Jan 13, 2017 at 11:07 AM, BartC wrote: > Even when it turns out that the actual code on github is 1000 lines rather > than 500! Maybe it grew a bit since the 500 lines was quoted. I assume they're excluding blank lines, comments and docstrings. And I don't know whether the 500 lines is a

Re: How can I make a sentinel value NOT be initialized in a class/method - OOP?

On Jan 13, 2017 3:33 PM, wrote: The issue I am having is that when i enter the sentinel value of QUIT, it gets initialized as the name and printed out. How can I get around this? I hope this makes sense. Hard to say for certain without seeing your code, but the most likely cause of this is th

Re: Python, asyncio, and systemd

On Tue, Jan 17, 2017 at 9:57 AM, Chris Angelico wrote: > If I write a web server using asyncio (and the aiohttp package), I can > spin up the server with: > > await loop.create_server(app.make_handler(), "0.0.0.0", 8080) > > This works fine for a high port, but if I want to bind to port 80, I > ne

Re: With class as contextmanager

On Tue, Jan 24, 2017 at 2:31 PM, This Wiederkehr wrote: > Hellou > > having a class definition: > > class Test(): > > @classmethod > def __enter__(cls): > pass > > @classmethod > def __exit__(cls, exception_type, execption_value, callback): > pass > > now using this as a contextmanager doe

Re: Need reviews for my book on introductory python

On Jan 27, 2017 2:13 PM, "bob gailer" wrote: On 1/26/2017 8:05 PM, Sandeep Nagar wrote: > Hi > > As I mentioned, a scaled down version is available for free at > bookmuft.Com which can be used to judge in this case. > Maybe I am blind, but I don't see any mention of bookmuft.Co. I pulled up th

Re: Overriding True and False ?

On Jan 30, 2017 2:00 AM, "Chris Angelico" wrote: (Interestingly, Ellipsis is not included in that.) Perhaps because it's rather unusual for a program to depend upon the value of Ellipsis. -- https://mail.python.org/mailman/listinfo/python-list

Re: Overriding True and False ?

On Jan 30, 2017 1:32 AM, "Irv Kalb" wrote: I teach intro to programming using Python. In my first assignment, students are asked to assign variables of different types and print out the values. One student (who really did not understand Booleans) turned in the following for his/her interpretati

Re: Overriding True and False ?

On Jan 30, 2017 6:07 PM, "Steve D'Aprano" wrote: > Hey Ian, > > Your news reader or mail client has stopped quoting the text you are > quoting, so it appears as if you have written it. > > See: > > https://mail.python.org/pipermail/python-list/2017-January

Re: What are your opinions on .NET Core vs Python?

On Jan 30, 2017 11:32 PM, "Gregory Ewing" wrote: > That's the thing I find most frustrating about both C# and Java, > the lack of anything like Python's "from ... import ...". You get > a choice of either effectively doing "import *" on the contents > of a whole class and polluting your namespace,

Re: What are your opinions on .NET Core vs Python?

On Jan 30, 2017 8:00 PM, "Michael Torrie" wrote: > In any case, partial classes seems like a misfeature of C# to me but > apparently they are used when making Windows Forms GUI-based apps. > Apparently VS autogenerates the class that backs the form, and then the > developer creates a partial class

Re: Python doesn't catch exceptions ?

On Wed, Feb 1, 2017 at 8:11 AM, Ivo Bellin Salarin wrote: > This code generates instead the messages: > ``` > ERROR 47.135[bigquery.py.create_table:362] caught exception: HttpError, > defined in server/libs/googleapiclient/errors.pyc. we are in > /Users/nilleb/dev/gae-sample-project/app > ERROR 47

Re: Python3 using requests to grab HTTP Auth Data

On Wed, Feb 1, 2017 at 2:51 PM, Νίκος Βέργος wrote: > Τη Τετάρτη, 1 Φεβρουαρίου 2017 - 11:41:28 μ.μ. UTC+2, ο χρήστης Michael > Torrie έγραψε: >> On 02/01/2017 01:51 PM, Νίκος Βέργος wrote: >> > as well as input() for both user & pass combo but iam not getting in >> > chrome the basic pop-up HTT

Re: Python3 using requests to grab HTTP Auth Data

On Wed, Feb 1, 2017 at 5:22 PM, Νίκος Βέργος wrote: > > # Give user the file requested > > print(''' content="5;url=http://superhost.gr/data/files/%s";>''' % realfile) > > authuser = os.environ.get( 'REMOTE_USER', 'Άγνωστος' ) > print( authuser ) >

Spot the invalid syntax

le "/tmp/test.py", line 32 return ips ^ SyntaxError: invalid syntax I've checked for tabs and mismatched parentheses. Aargh! -- Ian Pilcher arequip...@gmail.com "I grew up before Mark Zuckerberg invented friendship" -- https://mail.python.org/mailman/listinfo/python-list

Re: Spot the invalid syntax

On 03/08/2018 05:26 PM, Chris Angelico wrote: On Fri, Mar 9, 2018 at 10:23 AM, Ian Pilcher wrote: (Because I certainly can't.) ips.update(_san_dnsname_ips(cname, True) return ips I've checked for tabs and mismatched parentheses. Check the immediately prec

Re: Spot the invalid syntax

bone-headed to use properly, apparently. -- ==== Ian Pilcher arequip...@gmail.com "I grew up before Mark Zuckerberg invented

Re: Make synchronous generator from an asynchronous generator

On Thu, Mar 15, 2018 at 1:35 PM, Julien Salort wrote: > Because I wanted to keep the synchronous function for scripts which used it, > without unnecessarily duplicating the code, I built also a synchronous > function from this new asynchronous one, like that: > > def acquire_to_files(self, *args

Re: Accessing parent objects

On Sun, Mar 25, 2018 at 5:46 AM, Steven D'Aprano wrote: > On Sun, 25 Mar 2018 06:11:53 -0500, D'Arcy Cain wrote: >> It accesses the parent class. I want to access the parent object. > > Ah. Well, no wonder it doesn't work: you're confusing the OO inheritance > concept of "parent" (a superclass) w

Re: Accessing parent objects

On Sun, Mar 25, 2018 at 9:01 AM, Jugurtha Hadjar wrote: > > On 03/25/2018 03:25 PM, Terry Reedy wrote: >> >> On 3/25/2018 7:42 AM, Jugurtha Hadjar wrote: >> >>> class C2(object): >>> def __init__(self, parent=None): >>> self.parent = parent >> >> >> Since parent is required, it shoul

Re: Accessing parent objects

On Sun, Mar 25, 2018 at 9:01 AM, Jugurtha Hadjar wrote: > > On 03/25/2018 03:25 PM, Terry Reedy wrote: >> None.foo will raise AttributeError. >> > > Right.. As I said, I tried to assume as little as possible about OP's code > and namespace. Didn't want to include C1 in __init__ signature because I

Re: A question related to the PYTHONPATH

On Mon, Mar 26, 2018 at 1:24 PM, Dan Stromberg wrote: > On Sun, Mar 25, 2018 at 11:10 PM, dieter wrote: >> adrien oyono writes: >>> I have recently read the documentation about how imports work on python, >>> and I was wondering why, when you execute a python file, the current >>> directory is n

Re: To super or not to super (Re: Accessing parent objects)

On Tue, Mar 27, 2018 at 12:21 AM, Gregory Ewing wrote: > The idea that super() is *always* the right way to call > inherited methods in a multiple inheritance environment > seems to have been raised by some people to the level > of religous dogma. > > I don't buy it. In order for it to work, the f

Re: To super or not to super (Re: Accessing parent objects)

On Tue, Mar 27, 2018 at 8:47 AM, Ian Kelly wrote: > On Tue, Mar 27, 2018 at 12:21 AM, Gregory Ewing > wrote: >> The trouble is, those conditions don't always hold. >> Often when overriding a method, you want to do something >> *instead* of what the base method doe

Re: please test the new PyPI (now in beta)

On Mon, Mar 26, 2018 at 4:16 PM, Sumana Harihareswara wrote: > The new Python Package Index at https://pypi.org is now in beta. > > This means the site is robust, but we anticipate needing more user > testing and changes before it is "production-ready" and can fully > replace https://pypi.python.

Re: ***URGENT CONTRACT OPPORTUNITY***

On Wed, Mar 28, 2018 at 9:02 AM, Tobiah wrote: > > When should I apply? The ad said ASAP, so I guess that now it's already too late. -- https://mail.python.org/mailman/listinfo/python-list

Re: Python Developer Survey: Python 3 usage overtakes Python 2 usage

On Fri, Mar 30, 2018 at 7:10 PM, Rick Johnson wrote: > On Friday, March 30, 2018 at 7:44:40 PM UTC-5, Steven D'Aprano wrote: > [...] >> Reddit's /ruby subreddit: 40,571 subscribers. >> >> Reddit's /python subreddit: 230,858 subscribers. > > Those numbers mean nothing unless you can prove all two-

Re: Python Developer Survey: Python 3 usage overtakes Python 2 usage

On Fri, Mar 30, 2018 at 8:43 PM, Ian Kelly wrote: > You really think that 90% of the active users are trolls? And yet the > subreddit remains usable despite that allegedly terrible > signal-to-noise ratio. I'm now laughing at the image of a large community of trolls sitting around

Re: Python Developer Survey: Python 3 usage overtakes Python 2 usage

On Sat, Mar 31, 2018 at 6:29 AM, Rick Johnson wrote: > On Friday, March 30, 2018 at 8:59:16 PM UTC-5, Chris Angelico wrote: >> Wanna provide some competing information showing that other >> languages are more used? > > Chris, here is how debate works: > > PersonA asserts X. > > PersonB dem

Re: Unified async/sync interface

On Sat, Mar 31, 2018 at 7:44 PM, Demian Brecht wrote: > I might be entirely off my face, but figured I'd ask anyways given I > haven't figured out a clean solution to this problem myself yet: > > I'm trying to write a REST API client that supports both async and > synchronous HTTP transports (init

Re: In asyncio, does the event_loop still running after run_until_complete returned?

On Mon, Apr 2, 2018 at 5:32 AM, wrote: > I am new to the asyncio subject, just trying to figure out how to use it. > Below is the script I use for testing: > - > # asyncio_cancel_task2.py > > import asyncio > > @asyncio.coroutine > def task_func(): > print('in

Re: In asyncio, does the event_loop still running after run_until_complete returned?

On Mon, Apr 2, 2018 at 9:01 PM, wrote: > I also do a quick check, with call_later delay keeps at 1.5, to see what the > event loop status is after run_until_complete returns. Strangely, both > is_closed and is_running return a False. > > try: > event_loop.run_until_complete(main(eve

Re: Python aliases under Windows?

On Tue, Apr 3, 2018 at 3:24 AM, Kirill Balunov wrote: > Perhaps this is a silly question but still...There is PEP 394 "The "python" > Command on Unix-Like Systems" which I find very reasonable, no matter how > it is respected. Why was not _somewhat_ the same done for Windows? PEP 394 is meant to

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