On Fri, 6 May 2022 at 09:53, Grant Edwards wrote:
>
> On 2022-05-05, Mats Wichmann wrote:
>
> > Without having any data at all on it, just my impressions, more
> > people these days learn from in-person or video experiences.
>
> I've always been utterly baffled by video tutorials for
> programmin
On Thu, 5 May 2022 at 13:14, Avi Gross wrote:
>
> Chris,
>
> It was an extremely open-ended question to a forum where
> most of the readers are more advanced, at least I think.
>
>
> My library has oodles of Python Books for free to borrow on paper and
> return and I have read many of them. There
On Thu, 5 May 2022 at 12:57, Avi Gross via Python-list
wrote:
>
> https://wiki.python.org/moin/PythonBooks
>
That's an incredibly daunting list, and not something I'd overly
strongly recommend, but yes, if you want to get a dead-tree or e-book
to read, there are quite a lot of options available.
On Thu, 5 May 2022 at 12:49, Patrick 0511 wrote:
>
> Hello, I'm completely new here and don't know anything about python. Can
> someone tell me how best to start? So what things should I learn first?
>
I'd start right here with the tutorial!
https://docs.python.org/3/tutorial/
Most important t
On Tue, 3 May 2022 at 04:38, Marco Sulla wrote:
>
> On Mon, 2 May 2022 at 18:31, Stefan Ram wrote:
> >
> > |The Unicode standard defines a number of characters that
> > |conforming applications should recognize as line terminators:[7]
> > |
> > |LF:Line Feed, U+000A
> > |VT:Vertical Tab,
On Mon, 2 May 2022 at 11:54, Cameron Simpson wrote:
>
> On 01May2022 23:30, Stefan Ram wrote:
> >Dan Stromberg writes:
> >>But what about Unicode? Are all 10 bytes newlines in Unicode encodings?
> > It seems in UTF-8, when a value is above U+007F, it will be
> > encoded with bytes that always
On Mon, 2 May 2022 at 09:20, Dan Stromberg wrote:
>
>
> On Sun, May 1, 2022 at 1:44 PM Chris Angelico wrote:
>>
>> On Mon, 2 May 2022 at 06:43, Dan Stromberg wrote:
>> > On Sun, May 1, 2022 at 11:10 AM Chris Angelico wrote:
>> >>
>> &g
On Mon, 2 May 2022 at 09:19, Dan Stromberg wrote:
>
> On Sun, May 1, 2022 at 3:19 PM Cameron Simpson wrote:
>
> > On 01May2022 18:55, Marco Sulla wrote:
> > >Something like this is OK?
> >
>
> Scanning backward for a byte == 10 in ASCII or ISO-8859 seems fine.
>
> But what about Unicode? Are al
On Mon, 2 May 2022 at 01:53, Nas Bayedil wrote:
> We believe that using this method to develop completely new, fast
> algorithms, approaching the speed of the famous *QuickSort*, the speed of
> which cannot be surpassed, but its drawback can be circumvented, in the
> sense of stack overflow, on so
On Sun, 1 May 2022 at 00:03, Vlastimil Brom wrote:
> (Even the redundant u prefix from your python2 sample is apparently
> accepted, maybe for compatibility reasons.)
Yes, for compatibility reasons. It wasn't accepted in Python 3.0, but
3.3 re-added it to make porting easier. It doesn't do anythi
On Mon, 25 Apr 2022 at 01:47, Marco Sulla wrote:
>
>
>
> On Sat, 23 Apr 2022 at 23:18, Chris Angelico wrote:
>>
>> Ah. Well, then, THAT is why it's inefficient: you're seeking back one
>> single byte at a time, then reading forwards. That is NOT goin
On Sun, 24 Apr 2022 at 21:11, Antoon Pardon wrote:
>
>
>
> Op 23/04/2022 om 20:57 schreef Chris Angelico:
> > On Sun, 24 Apr 2022 at 04:37, Marco Sulla
> > wrote:
> >> What about introducing a method for text streams that reads the lines
>
On Sun, 24 Apr 2022 at 10:04, Cameron Simpson wrote:
>
> On 24Apr2022 08:21, Chris Angelico wrote:
> >On Sun, 24 Apr 2022 at 08:18, Cameron Simpson wrote:
> >> An approach I think you both may have missed: mmap the file and use
> >> mmap.rfind(b'\n'
On Sun, 24 Apr 2022 at 08:18, Cameron Simpson wrote:
>
> On 24Apr2022 07:15, Chris Angelico wrote:
> >On Sun, 24 Apr 2022 at 07:13, Marco Sulla
> >wrote:
> >> Emh, why chunks? My function simply reads byte per byte and compares
> >> it to b"\n"
On Sun, 24 Apr 2022 at 08:06, dn wrote:
>
> On 24/04/2022 09.15, Chris Angelico wrote:
> > On Sun, 24 Apr 2022 at 07:13, Marco Sulla
> > wrote:
> >>
> >> On Sat, 23 Apr 2022 at 23:00, Chris Angelico wrote:
> >>>>> This is quite ineffici
On Sun, 24 Apr 2022 at 08:03, Peter J. Holzer wrote:
>
> On 2022-04-24 04:57:20 +1000, Chris Angelico wrote:
> > On Sun, 24 Apr 2022 at 04:37, Marco Sulla
> > wrote:
> > > What about introducing a method for text streams that reads the lines
> > &
On Sun, 24 Apr 2022 at 07:13, Marco Sulla wrote:
>
> On Sat, 23 Apr 2022 at 23:00, Chris Angelico wrote:
> > > > This is quite inefficient in general.
> > >
> > > Why inefficient? I think that readlines() will be much slower, not
> > > only more t
On Sun, 24 Apr 2022 at 06:41, Marco Sulla wrote:
>
> On Sat, 23 Apr 2022 at 20:59, Chris Angelico wrote:
> >
> > On Sun, 24 Apr 2022 at 04:37, Marco Sulla
> > wrote:
> > >
> > > What about introducing a method for text streams that reads the li
On Sun, 24 Apr 2022 at 04:37, Marco Sulla wrote:
>
> What about introducing a method for text streams that reads the lines
> from the bottom? Java has also a ReversedLinesFileReader with Apache
> Commons IO.
It's fundamentally difficult to get precise. In general, there are
three steps to reading
On Sat, 23 Apr 2022 at 09:31, Rob Cliffe via Python-list
wrote:
>
> I don't use docstrings much; instead I put a line or two of comments
> after the `def ` line.
> But my practice in such situations is as per the OP's 3rd suggestion, e.g.
> # Returns True if .
The point of docstrings is
On Sat, 23 Apr 2022 at 08:24, <2qdxy4rzwzuui...@potatochowder.com> wrote:
>
> On 2022-04-22 at 15:35:15 -0500,
> "Michael F. Stemper" wrote:
>
> > On 22/04/2022 14.59, Chris Angelico wrote:
> > > On Sat, 23 Apr 2022 at 05:56, Michael F. Stemper
> >
On Sat, 23 Apr 2022 at 05:56, Michael F. Stemper
wrote:
>
> I'm writing a function that is nearly self-documenting by its name,
> but still want to give it a docstring. Which of these would be
> best from a stylistic point of view:
>
>
>Tells caller whether or not a permutation is even.
>
>
On Fri, 22 Apr 2022 at 04:19, Jack Dangler wrote:
>
>
> On 4/21/22 13:09, Chris Angelico wrote:
> > On Fri, 22 Apr 2022 at 03:02, Tola Oj wrote:
> >> for i in range(1, n+1):
> >> if i % 3 == 0 and i % 5 == 0:
> >> print
On Fri, 22 Apr 2022 at 03:02, Tola Oj wrote:
>
> for i in range(1, n+1):
> if i % 3 == 0 and i % 5 == 0:
> print("Fizzbuzz")
> elif i % 3 == 0:
> print("Fizz")
> elif i % 5 == 0:
> print("Buzz")
> else:
> print(i)
>
On Thu, 21 Apr 2022 at 13:23, Abdur-Rahmaan Janhangeer
wrote:
>
> Assumes checking for object equality before inserting.
> If they are they same, do we need different hashes?
>
The point of the hash is to find things that are equal. That's why
1234, 1234.0, and 0j+1234.0 all have the same hash.
On Thu, 21 Apr 2022 at 06:20, Avi Gross via Python-list
wrote:
>
> This does raise an issue, Chris, if you use the method of making a tuple
> companion for a list at a specific time just for use as a dictionary key,
> then later change the list, you can end up with various situations.
>
Yes. An
On Thu, 21 Apr 2022 at 05:30, Sam Ezeh wrote:
>
> Repeating the above points, here is an example of what would happen if
> you tried. Dictionaries require their keys to be immutable as
> under-the-hood they use hash tables and they'd fail when the
> underlying values are allowed to change.
>
> ```
On Thu, 21 Apr 2022 at 04:23, Abdur-Rahmaan Janhangeer
wrote:
>
> Greetings list,
Greetings tuple,
> Using Python3.9, i cannot assign a list [1, 2] as key
> to a dictionary. Why is that so? Thanks in advanced!
>
Because a list can be changed, which would change what it's equal to:
>>> spam = [
On Wed, 20 Apr 2022 at 02:16, Loris Bennett wrote:
> I now realise that timedelta is not really what I need. I am interested
> solely in pure periods, i.e. numbers of seconds, that I can convert back
> and forth from a format such as
>
> 11-22::44:55
>
> (These are the lengths of time a job has
On Sun, 17 Apr 2022 at 18:17, Peter J. Holzer wrote:
>
> On 2022-04-17 06:08:54 +1000, Chris Angelico wrote:
> > On Sun, 17 Apr 2022 at 03:37, Peter J. Holzer wrote:
> > > Datetime arithmetic in the real world is typically not done in seconds,
> > > but in calend
On Sun, 17 Apr 2022 at 08:37, Dennis Lee Bieber wrote:
> And proposals to make
> DST permanent year round -- so "noon" (1200hrs) is not "noon" (sun at
> zenith) pretty much anywhere.
>
Noon isn't precisely zenith anyway, for several reasons:
1) Time zones synchronize their clocks on the mean noo
On Sun, 17 Apr 2022 at 07:37, Sam Ezeh wrote:
>
> Two questions here.
>
> Firstly, does anybody know of existing discussions (e.g. on here or on
> python-ideas) relating to unpacking inside lambda expressions?
>
> I found myself wanting to write the following.
>
> ```
> map(
> lambda (module,
On Sun, 17 Apr 2022 at 05:38, Peter J. Holzer wrote:
>
> On 2022-04-17 02:46:38 +1000, Chris Angelico wrote:
> > On Sun, 17 Apr 2022 at 02:45, Peter J. Holzer wrote:
> > > For adding a datetime and timedelta I think the answer is clear.
> > > But subtract
On Sun, 17 Apr 2022 at 03:37, Peter J. Holzer wrote:
> Datetime arithmetic in the real world is typically not done in seconds,
> but in calendaric units: Hours, days, weeks, months, years, ...
> The problem is that several of these have varying lengths:
>
> * 1 minute may be 60 or 61 seconds (theo
On Sun, 17 Apr 2022 at 03:52, Peter J. Holzer wrote:
>
> On 2022-04-17 02:46:38 +1000, Chris Angelico wrote:
> > On Sun, 17 Apr 2022 at 02:45, Peter J. Holzer wrote:
> > > On 2022-04-17 02:14:44 +1000, Chris Angelico wrote:
> > > > So which one is it? Which one
On Sun, 17 Apr 2022 at 02:45, Peter J. Holzer wrote:
>
> On 2022-04-17 02:14:44 +1000, Chris Angelico wrote:
> > On Sun, 17 Apr 2022 at 02:03, Peter J. Holzer wrote:
> > > On the contrary. When a datetime is timezone aware, it must use that
> > > timezone's
On Sun, 17 Apr 2022 at 02:03, Peter J. Holzer wrote:
>
> On 2022-04-16 14:22:04 -, Jon Ribbens via Python-list wrote:
> > timedelta(days=1) is 24 hours (as you can check by
> > calling timedelta(days=1).total_seconds() ),
>
> It shouldn't be. 1 Day is not 24 hours in the real world.
>
> > but
On Sat, 16 Apr 2022 at 04:51, Python wrote:
>
> Cecil Westerhof wrote:
> > In C when you declare a variable static in a function, the variable
> > retains its value between function calls.
> > The first time the function is called it has the default value (0 for
> > an int).
> > But when the funct
On Fri, 15 Apr 2022 at 17:42, Tola Oj wrote:
>
> i = int(input())
> lis = list(map(int,input().strip().split()))[:i]
> z = max(lis)
> while max(lis) == z:
> lis.remove(max(lis))
>
> print (max(lis))
>
> this is an answer to a question from the discussion chat in hackerrank. i
> didn't know the ans
On Fri, 15 Apr 2022 at 03:53, Sam Ezeh wrote:
>
> I've seen people use function attributes for this.
> ```
> Python 3.10.2 (main, Jan 15 2022, 19:56:27) [GCC 11.1.0] on linux
> Type "help", "copyright", "credits" or "license" for more information.
> >>> def function():
> ... print(function.var
On Fri, 15 Apr 2022 at 00:54, Loris Bennett wrote:
>
> Hi,
>
> With Python 3.9.2 I get
>
> $ import datetime
> $ s = "1-00:01:01"
> $ t = datetime.datetime.strptime(s, "%d-%H:%M:%S")
> $ d = datetime.timedelta(days=t.day, hours=t.hour, minutes=t.minute,
> seconds=t.second)
> $ d.days
>
On Fri, 15 Apr 2022 at 03:45, Marco Sulla wrote:
>
> On Thu, 14 Apr 2022 at 19:16, MRAB wrote:
> >
> > When you're working only with dates, timedelta not having a 'days'
> > attribute would be annoying, especially when you consider that a day is
> > usually 24 hours, but sometimes 23 or 25 hours
On Thu, 14 Apr 2022 at 11:00, Kevin M. Wilson via Python-list
wrote:
>
>
>
>
>
> MS Edge settings are displayed in the first picture, the error I encountered
> is the second picture...not sure how I get around this!I reloaded the browser
> after checking the settings for JavaScript...confused.
>
On Wed, 13 Apr 2022 at 03:37, Stefano Ovus wrote:
>
> found a solution: importing modules instead of classes, ex.
>
> -- square.py
>
> import circle
>
> ...
> @classmethod
> def from_circle(cls, circle: circle.Circle) -> Square:
> ...
> return cls(...)
Yep! Good solution.
Be aware that
On Fri, 8 Apr 2022 at 16:26, Peter J. Holzer wrote:
> Unless you have a unique immutable identifier that's enforced by
> some authority (like a social security number[1]), I don't think there
> is a chance to do that reliably in a program (although with enough data,
> a heuristic may be good enoug
On Mon, 4 Apr 2022 at 05:19, Marco Sulla wrote:
>
> On Sun, 3 Apr 2022 at 18:57, Dieter Maurer wrote:
> > You know you can easily implement this yourself -- in your own
> > `dict` subclass.
>
> Well, of course, but the question is if such a method is worth to be
> builtin, in a world imbued with
On Mon, 4 Apr 2022 at 00:59, Kirill Ratkin via Python-list
wrote:
>
> Hi Marco.
>
> Recently I met same issue. A service I intergated with was documented
> badly and sent ... unpredictable jsons.
>
> And pattern matching helped me in first solution. (later I switched to
> Pydantic models)
>
> For
On Fri, 1 Apr 2022 at 11:16, Dennis Lee Bieber wrote:
>
> On Fri, 1 Apr 2022 03:59:32 +1100, Chris Angelico
> declaimed the following:
>
>
> >That's jmf. Ignore him. He knows nothing about Unicode and is
> >determined to make everyone aware of that fact.
> &
On Fri, 1 Apr 2022 at 03:45, Dennis Lee Bieber wrote:
>
> On Thu, 31 Mar 2022 00:36:10 -0700 (PDT), moi
> declaimed the following:
>
> 'äÄöÖüÜ'.encode('utf-8')
> >b'\xc3\xa4\xc3\x84\xc3\xb6\xc3\x96\xc3\xbc\xc3\x9c'
> len('äÄöÖüÜ'.encode('utf-8'))
> >12
>
> ?
>
> Is the
On Thu, 31 Mar 2022 at 03:33, Edward Spencer wrote:
>
> 在 2022年3月30日星期三 UTC+1 16:38:26， 写道：
> > > On 30 Mar 2022, at 16:11, Edward Spencer wrote:
> > >
> > > 在 2021年9月3日星期五 UTC+1 18:50:51， 写道：
> > On 2 Sep 2021, at 23:38, Dieter Maurer wrote:
> > >>>
> > >>> Edward Spencer wrote at 2021-9
On Tue, 29 Mar 2022 at 09:04, Cameron Simpson wrote:
>
> On 29Mar2022 06:10, Chris Angelico wrote:
> >On Tue, 29 Mar 2022 at 06:08, Christian Gollwitzer wrote:
> >> Am 28.03.22 um 20:03 schrieb Chris Angelico:
> >> > Would you accept a solutio
On Tue, 29 Mar 2022 at 06:08, Christian Gollwitzer wrote:
>
> Am 28.03.22 um 20:03 schrieb Chris Angelico:
> > Would you accept a solution that involves a subprocess call?
> >
> > wmctrl -ir {id} -b add,sticky
> >
> > Now, the only problem is... figuring out y
On Tue, 29 Mar 2022 at 02:56, Skip Montanaro wrote:
>
> > I might be misguided, but on modern desktops that should be possible
> > with a few mouseclicks. E.g. in KDE, there is a little pin icon
> > displayed in every title bar of a toplevel window on the left side.
>
> Correct, and that's what I'
On Fri, 25 Mar 2022 at 10:44, Avi Gross wrote:
> But would it be helpful? Maybe. I am thinking back to decades ago when I
> did C and C++ programming and how we used it. It was way more that just:
>
> #DEFINE TIMEZONE 5
>
> The above use is sort of to create a constant. What we often used was ways
On Fri, 25 Mar 2022 at 06:05, Grant Edwards wrote:
>
> On 2022-03-24, Chris Angelico wrote:
>
> > No, I would say that a preprocessor of that sort isn't necessary to a
> > Python-like language. If you really want one, it's honestly not that
> > hard to do; r
On Fri, 25 Mar 2022 at 04:15, Avi Gross via Python-list
wrote:
> Python made lots of choices early on and then tried to graft on ever more
> features, sometimes well and sometimes not optimally. The same is true
> for so many other languages. A carefully designed new language built now
> might ana
On Tue, 22 Mar 2022 at 10:52, Skip Montanaro wrote:
>
> Given that both asyncio & tkinter are modules in the standard lib and both
> have event loops, I would have expected to find some "best practice"
> solution to mixing the two. I've not used asyncio, but might find it useful
> with the pynput
On Tue, 22 Mar 2022 at 08:13, Paul St George wrote:
>
>
> When I am writing code, I often do things like this:
>
> context = bpy.context # convenience
>
> then whenever I need bpy.context, I only need to write context
>
>
> Here’s my question:
>
> When I forget to use the convenient shorter form
On Sat, 19 Mar 2022 at 14:06, Greg Ewing wrote:
>
> On 19/03/22 9:40 am, Rathmann wrote:
> > The other challenge/question would be to see if there is a way to implement
> > this basic approach with lower overhead.
>
> My original implementation of yield-from didn't have this problem,
> because it
On Wed, 16 Mar 2022 at 18:48, Cameron Simpson wrote:
>
> On 16Mar2022 16:58, Chris Angelico wrote:
> >On Wed, 16 Mar 2022 at 14:00, Cameron Simpson wrote:
> >> On 16Mar2022 10:57, Chris Angelico wrote:
> >> A significant difference is that tuples have no keys, u
On Wed, 16 Mar 2022 at 14:00, Cameron Simpson wrote:
>
> On 16Mar2022 10:57, Chris Angelico wrote:
> >> Is it sensible to compute the hash only from the immutable parts?
> >> Bearing in mind that usually you need an equality function as well and
> >> it m
On Wed, 16 Mar 2022 at 10:42, Cameron Simpson wrote:
>
> On 12Mar2022 21:45, Marco Sulla wrote:
> >I have a custom immutable object, and I added a cache for its hash
> >value. The problem is the object can be composed of mutable or
> >immutable objects, so the hash can raise TypeError.
>
> Is it
On Tue, 15 Mar 2022 at 08:28, Dan Stromberg wrote:
>
> Hi folks.
>
> First off, I know, python2 is ancient history. Porting to 3.x is on my
> list of things to do (though I'm afraid it's not yet at the top of the
> list), and the same thing happens with python3.
>
> So anyway, I'm strace'ing a #!
On Sun, 13 Mar 2022 at 10:41, Jen Kris wrote:
>
>
> Thanks for PySequence_InPlaceConcat, so when I need to extend I'll know what
> to use. But my previous email was based on incorrect information from
> several SO posts that claimed only the extend method will work to add tuples
> to a list.
On Sun, 13 Mar 2022 at 10:30, Jen Kris wrote:
>
>
> Chris, you were right to focus on the list pDictData itself. As I said,
> that is a list of 2-tuples, but I added each of the 2-tuples with
> PyList_Append, but you can only append a tuple to a list with the extend
> method. However, there
On Sun, 13 Mar 2022 at 08:54, Jen Kris wrote:
>
>
> pDictData, despite the name, is a list of 2-tuples where each 2-tuple is a
> dictionary object and a string.
>
Ah, gotcha. In that case, yeah, slicing it will involve referencing
the tuples all the way down the line (adding to their refcounts,
On Sun, 13 Mar 2022 at 08:25, Jen Kris via Python-list
wrote:
> PyObject* slice = PySlice_New(PyLong_FromLong(0), half_slice, 0);
> PyObject* subdata_a = PyObject_GetItem(pDictddata, slice);
>
> On the final line (subdata_a) I get a segfault. I know that the second
> parameter of PyObject_GetIt
On Fri, 11 Mar 2022 at 19:57, Roel Schroeven wrote:
>
> Op 11/03/2022 om 3:50 schreef Chris Angelico:
> > On Fri, 11 Mar 2022 at 09:51, Cousin Stanley
> > wrote:
> > > The following will display a list of lxqt packages
> > > that are in the
On Fri, 11 Mar 2022 at 16:39, Dan Stromberg wrote:
> Some folks say the desktop environment matters more than the distribution,
> when choosing what OS to install.
Matters more to the choice? Impossible to say.
Matters more to the UI? Without a doubt.
ChrisA
--
https://mail.python.org/mailman/
On Fri, 11 Mar 2022 at 09:51, Cousin Stanley wrote:
>
> Marco Sulla wrote:
>
> >>
> >> Maybe Debian itself?
> >
> > I tried Debian on a VM, but I found it too much basical. A little
> > example: it does not have the shortcut ctrl+alt+t to open a terminal
> > that Ubuntu has. I'm quite sure it's si
On Fri, 11 Mar 2022 at 00:05, Marco Sulla wrote:
>
> On Thu, 10 Mar 2022 at 04:50, Michael Torrie wrote:
> >
> > On 3/9/22 13:05, Marco Sulla wrote:
> > > So my laziness pays. I use only LTS distros, and I update only when
> > > there are security updates.
> > > PS: any suggestions for a new LTS
On Tue, 8 Mar 2022 at 04:13, Jen Kris wrote:
>
>
> The PyObject str_sentence is a string representation of a list. I need to
> convert the list to a string like "".join because that's what the library
> call takes.
>
What you're doing is the equivalent of str(sentence), not
"".join(sentence).
On Tue, 8 Mar 2022 at 04:06, Jen Kris via Python-list
wrote:
> But with the C API it looks like this:
>
> PyObject *pSentence = PySequence_GetItem(pSents, sent_count);
> PyObject* str_sentence = PyObject_Str(pSentence); // Convert to string
>
> PyObject* repr_str = PyObject_Repr(str_sentence);
Y
On Mon, 7 Mar 2022 at 09:51, Avi Gross via Python-list
wrote:
>
> >>>
> Pascal versus PASCAL versus pascal (not versus paschal) and
> Perl versus PERL versus perl (not versus pearl)
>
> seems to be a topic.
> <<<
>
> The nitpickers here are irrelevant. I happen to know how things are formally
> s
On Mon, 7 Mar 2022 at 07:37, Martin Di Paola wrote:
>
>
>
> >
> >The way you've described it, it's a hack. Allow me to slightly redescribe it.
> >
> >modules = loader()
> >objs = init(modules)
> >
> >def invoke(mod, func):
> ># I'm assuming that the loader is smart enough to not load
> >#
On Sun, 6 Mar 2022 at 23:43, Martin Di Paola wrote:
>
> Hi everyone. I implemented time ago a small plugin engine to load code
> dynamically.
>
> So far it worked well but a few days ago an user told me that he wasn't
> able to run in parallel a piece of code in MacOS.
>
> He was using multiproces
On Sat, 5 Mar 2022 at 10:28, Peter J. Holzer wrote:
>
> On 2022-03-04 11:34:07 +1100, Chris Angelico wrote:
> > On Fri, 4 Mar 2022 at 10:09, Avi Gross via Python-list
> > wrote:
> > > The drumbeat I keep hearing is that some people hear/see the same
> > > word
On Sat, 5 Mar 2022 at 07:52, Avi Gross wrote:
>
> Chris,
>
> My example was precisely what to do when it is an empty closet:
Does it correctly handle a closet with shirts in it, though?
There's not a lot of point demonstrating an alternate use for the
"else" clause when it is *absolutely identic
On Sat, 5 Mar 2022 at 03:44, Avi Gross via Python-list
wrote:
>
> Dieter,
>
> Your use is creative albeit it is not "needed" since all it does is make sure
> your variable is initialized to something, specifically None.
>
> So would this not do the same thing?
>
> eye = None
>
> for eye in ra
On Sat, 5 Mar 2022 at 02:02, Tim Chase wrote:
>
> On 2022-03-04 11:55, Chris Angelico wrote:
> > In MS-DOS, it was perfectly possible to have spaces in file names
>
> DOS didn't allow space (0x20) in filenames unless you hacked it by
> hex-editing your filesystem (whic
On Fri, 4 Mar 2022 at 21:02, gene heskett wrote:
> That makes the logic work, but who then cleans up the trash on the stack.
> Thats a memory leak.
>
Not sure I follow?
ChrisA
--
https://mail.python.org/mailman/listinfo/python-list
On Fri, 4 Mar 2022 at 18:13, Dieter Maurer wrote:
>
> Rob Cliffe wrote at 2022-3-4 00:13 +:
> >I find it so hard to remember what `for ... else` means that on the very
> >few occasions I have used it, I ALWAYS put a comment alongside/below the
> >`else` to remind myself (and anyone else unfort
On Fri, 4 Mar 2022 at 14:37, Avi Gross via Python-list
wrote:
>
> That is one way to look at it, Jach. Of course, a particular loop may have
> multiple break statements each meaning something else. The current
> implementation makes all of them jump to the same ELSE statement so in one
> sense,
On Fri, 4 Mar 2022 at 14:05, Avi Gross via Python-list
wrote:
> To answer something Chris said and was also mentioned here, I do not consider
> language design to be easy let alone implementing it. Not at all. BUT I think
> some changes can be straightforward. Having a symbol like a curly brace
On Fri, 4 Mar 2022 at 11:39, Avi Gross via Python-list
wrote:
>
> Rob,
>
> I regularly code with lots of comments like the one you describe, or mark the
> end of a region that started on an earlier screen such as a deeply nested
> construct.
>
> I have had problems though when I have shared such
On Fri, 4 Mar 2022 at 11:14, Rob Cliffe via Python-list
wrote:
>
> I find it so hard to remember what `for ... else` means that on the very
> few occasions I have used it, I ALWAYS put a comment alongside/below the
> `else` to remind myself (and anyone else unfortunate enough to read my
> code) wh
On Fri, 4 Mar 2022 at 10:09, Avi Gross via Python-list
wrote:
>
> The drumbeat I keep hearing is that some people hear/see the same word as
> implying something else. ELSE is ambiguous in the context it is used.
>
What I'm hearing is that there are, broadly speaking, two types of
programmers [1]
On Fri, 4 Mar 2022 at 03:29, Tim Chase wrote:
>
> On 2022-03-03 06:27, Grant Edwards wrote:
> > On 2022-03-03, Chris Angelico wrote:
> > > Awww, I was going to make a really bad joke about timezones :)
> >
> > As opposed to all the really good jokes about timez
On Fri, 4 Mar 2022 at 00:25, computermaster360
wrote:
>
> I want to make a little survey here.
>
> Do you find the for-else construct useful? Have you used it in
> practice? Do you even know how it works, or that there is such a thing
> in Python?
Yes, yes, and yes-yes. It's extremely useful.
>
On Thu, 3 Mar 2022 at 13:05, gene heskett wrote:
> I take it back, kmail5 had decided it was a different thread. My bad, no
> biscuit.
>
Awww, I was going to make a really bad joke about timezones :)
ChrisA
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On Wed, 2 Mar 2022 at 19:34, Peter Otten <__pete...@web.de> wrote:
>
> On 02/03/2022 01:32, Rob Cliffe via Python-list wrote:
>
> > itertools.product returns an iterator (or iterable, I'm not sure of the
> > correct technical term).
>
> There's a simple test:
>
> iter(x) is x --> True # iterator
>
On Tue, 1 Mar 2022 at 22:52, Morten W. Petersen wrote:
> Yep. Well, as I said, I could create some range objects myself, and even
> create a little module and put it up on pypi, if I couldn't find any existing
> module I could use.
>
> As we're discussing this, it is clear that different point
On Tue, 1 Mar 2022 at 09:28, Morten W. Petersen wrote:
>
> Hi Chris, Cameron.
>
> Well, let's say I specify the datetime 2022-02-22 02:02 (AM). I think
> everyone could agree that it also means 2022-02-22 02:02:00:00, to 2022-02-22
> 02:02:59:59.
>
Not sure how many :59s you want there :) I'm g
On Mon, 28 Feb 2022 at 08:51, Cameron Simpson wrote:
>
> On 27Feb2022 11:16, Morten W. Petersen wrote:
> >I was initially using the date object to get the right timespan, but
> >then
> >found that using the right timezone with that was a bit of a pain. So I
> >went for the datetime object instea
On Mon, 28 Feb 2022 at 03:24, MRAB wrote:
>
> On 2022-02-27 08:51, Barry Scott wrote:
> >
> >
> >> On 22 Feb 2022, at 09:30, Chris Angelico wrote:
> >>
> >> On Tue, 22 Feb 2022 at 20:24, Frank Millman >> <mailto:fr...@chagford.com>> wr
On Sun, 27 Feb 2022 at 16:35, Dan Stromberg wrote:
>
>
> On Fri, Feb 25, 2022 at 3:15 PM Chris Angelico wrote:
>>
>> But ultimately, that's still the same as sum(), and it's no more
>> readable than chain(), so I'd still be inclined to go with chain and
On Sat, 26 Feb 2022 at 15:39, Avi Gross via Python-list
wrote:
> Take interpreted languages including Python and R that specify all kinds of
> functions that may be written within the language at first. Someone may
> implement a function like sum() (just an example) that looks like the sum of
>
On Sat, 26 Feb 2022 at 14:35, Avi Gross via Python-list
wrote:
> But with numpy and more available anyway, it may not be necessary to reinvent
> much of that. I was just wondering if it ever made sense to simply include it
> in the base python, perhaps as a second executable with a name like pyt
On Sat, 26 Feb 2022 at 10:05, Albert-Jan Roskam wrote:
>Was also thinking about reduce, though this one uses a dunder method:
>from functools import reduce
>d = {1: ['aaa', 'bbb', 'ccc'], 2: ['fff', 'ggg']}
>print(reduce(list.__add__, list(d.values(
If you don't want to use th
On Sat, 26 Feb 2022 at 09:58, Richard Damon wrote:
>
> On 2/25/22 2:47 PM, Chris Angelico wrote:
> > On Sat, 26 Feb 2022 at 05:49, Richard Damon
> > wrote:
> >> On 2/25/22 4:12 AM, BELAHCENE Abdelkader wrote:
> >>> Hi,
> >>> a lot of people
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