Greg Ewing ezt írta (időpont: 2021. jún. 2.,
Sze, 4:01):
> On 1/06/21 7:01 am, Alan Gauld wrote:
> > That was the point, the OP said it was a book about OOP.
> > Not a book about "OOP in Python".
>
> In that case it would be best to avoid the word, or give
> a definition of the way he's using it,
On 1/06/21 7:01 am, Alan Gauld wrote:
That was the point, the OP said it was a book about OOP.
Not a book about "OOP in Python".
In that case it would be best to avoid the word, or give
a definition of the way he's using it, making it clear
that it's not a universal definition. Python's definit
On 31/05/2021 15:59, Dennis Lee Bieber wrote:
> On Sun, 30 May 2021 21:20:24 +0100, Alan Gauld via Python-list
> declaimed the following:
>
>> On 30/05/2021 17:57, Irv Kalb wrote:
>>> I am doing some writing (for an upcoming book on OOP), and I'm a little
>>> stuck.
>>
>> Oh dear, that's one o
On 6/1/21, Jon Ribbens via Python-list wrote:
>
> I already answered that in the post you are responding to, but you
> snipped it: You can tell something's definitely not a data attribute
> if you have to put brackets after its name to call it as a method to
> invoke its function or retrieve the v
On 2021-06-01, Greg Ewing wrote:
> On 1/06/21 2:34 am, Jon Ribbens wrote:
>> From the outside, it's just a *data* attribute. Which, from the inside,
>> it isn't. Hence "pretending".
>
> But what is it about the external appearance that would make
> you think it's a data attribute, rather than som
On 1/06/21 2:34 am, Jon Ribbens wrote:
From the outside, it's just a *data* attribute. Which, from the inside,
it isn't. Hence "pretending".
But what is it about the external appearance that would make
you think it's a data attribute, rather than some other kind
of attribute?
(I'm assuming th
On 31/05/2021 01:24, Greg Ewing wrote:
> On 31/05/21 8:20 am, Alan Gauld wrote:
>>
>> That's a very Pythonic description.
>
> If it's a book about Python, it needs to be. The word "property"
> has a very specialised meaning in Python.
>
> In some other languages it's used the way we use "attribut
On 2021-05-31, Greg Ewing wrote:
> On 31/05/21 9:13 am, Jon Ribbens wrote:
>> No, I said it pretends to be a *data* attribute.
>
> I don't think it's pretending to be anything. From the outside,
> it's just an attribute.
>From the outside, it's just a *data* attribute. Which, from the inside,
it
> On May 30, 2021, at 10:15 AM, Jon Ribbens via Python-list
> wrote:
>
> On 2021-05-30, Irv Kalb wrote:
>> I understand what a "property" is, how it is used and the benefits,
>> but apparently my explanation hasn't made the light bulb go on for my
>> editor. The editor is asking for a defin
On 31/05/21 9:13 am, Jon Ribbens wrote:
No, I said it pretends to be a *data* attribute.
I don't think it's pretending to be anything. From the outside,
it's just an attribute.
Data attributes are more common than non-data attributes, so
we tend to assume that an attribute is a data attribute
On 31/05/21 4:57 am, Irv Kalb wrote:
Perhaps the best I've found so far is from the Python documentation:
A property object has getter, setter, and deleter methods usable as decorators
that create a copy of the property with the corresponding accessor function set
to the decorated function.
On 31/05/21 8:20 am, Alan Gauld wrote:
That's a very Pythonic description.
If it's a book about Python, it needs to be. The word "property"
has a very specialised meaning in Python.
In some other languages it's used the way we use "attribute" in
Python. So a Python-specific definition is nece
On 30/05/2021 23:57, Mike Dewhirst wrote:
>
> A property is an object method masquerading as a cachable object attribute
Or a group of methods perhaps?
--
Alan G
Author of the Learn to Program web site
http://www.alan-g.me.uk/
http://www.amazon.com/author/alan_gauld
Follow my photo-blog on Fli
On 2021-05-30, Terry Reedy wrote:
> Note: at least one person says a property *pretends* to be an attribute.
No, I said it pretends to be a *data* attribute. It is effectively
several methods in a trenchcoat pretending to be a variable.
--
https://mail.python.org/mailman/listinfo/python-list
On 5/30/21, Ethan Furman wrote:
>
> > Properties are a special kind of attribute. Basically, when Python
> encounters the following code:
> >
> > spam = SomeObject()
> > print(spam.eggs)
> >
> > it looks up eggs in spam, and then examines eggs to see if it has a
> __get__, __set__, o
-list On
Behalf Of Alan Gauld via Python-list
Sent: Sunday, May 30, 2021 4:20 PM
To: python-list@python.org
Subject: Re: Definition of "property"
On 30/05/2021 17:57, Irv Kalb wrote:
> I am doing some writing (for an upcoming book on OOP), and I'm a little
stuck.
Oh dear, tha
On Sun, May 30, 2021 at 9:57 AM Irv Kalb wrote:
> I am doing some writing (for an upcoming book on OOP), and I'm a little
> stuck.
>
> I understand what a "property" is, how it is used and the benefits, but
> apparently my explanation hasn't made the light bulb go on for my editor.
> The editor i
On 31/05/2021 2:57 am, Irv Kalb wrote:
I am doing some writing (for an upcoming book on OOP), and I'm a little stuck.
I understand what a "property" is, how it is used and the benefits, but
apparently my explanation hasn't made the light bulb go on for my editor. The editor is
asking for a de
On 31/05/2021 04.57, Irv Kalb wrote:
> I am doing some writing (for an upcoming book on OOP), and I'm a little
> stuck.
>
> I understand what a "property" is, how it is used and the benefits, but
> apparently my explanation hasn't made the light bulb go on for my editor.
> The editor is aski
On 30/05/2021 17:57, Irv Kalb wrote:
> I am doing some writing (for an upcoming book on OOP), and I'm a little
> stuck.
Oh dear, that's one of myt hot buttons I'm afraid!
I hope it really is about OOP and not about classes. Classes
are such a minor part of OOP that it is depressing how many
boo
On 5/30/2021 12:57 PM, Irv Kalb wrote:
I am doing some writing (for an upcoming book on OOP), and I'm a little stuck.
I understand what a "property" is, how it is used and the benefits, but
apparently my explanation hasn't made the light bulb go on for my editor. The editor is
asking for a de
On 2021-05-30, Irv Kalb wrote:
> I understand what a "property" is, how it is used and the benefits,
> but apparently my explanation hasn't made the light bulb go on for my
> editor. The editor is asking for a definition of property. I've
> looked at many articles on line and a number of books,
On 5/30/21 9:57 AM, Irv Kalb wrote:
> I understand what a "property" is, how it is used and the benefits, but apparently my explanation hasn't made the
light bulb go on for my editor.
My answer from Stackoverflow [1]:
> Properties are a special kind of attribute. Basically, when Python encoun
> On 30 May 2021, at 17:57, Irv Kalb wrote:
>
> I am doing some writing (for an upcoming book on OOP), and I'm a little
> stuck.
>
> I understand what a "property" is, how it is used and the benefits, but
> apparently my explanation hasn't made the light bulb go on for my editor.
> The
On Mon, May 31, 2021 at 2:58 AM Irv Kalb wrote:
>
> I am doing some writing (for an upcoming book on OOP), and I'm a little stuck.
>
> I understand what a "property" is, how it is used and the benefits, but
> apparently my explanation hasn't made the light bulb go on for my editor.
> The editor
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