Op 25-09-17 om 00:39 schreef Gregory Ewing:
> Dennis Lee Bieber wrote:
>> "Binding" itself tends to be Python specific terminology -- in
>> that it
>> is the parameter /name/ that gets bound/attached to the argument
>> /object/.
>> It is the same method as used in any Python "assignment" statem
Op 24-09-17 om 04:13 schreef Steve D'Aprano:
>> and consider
>> that something else has to happen as an alternative, and (2) understand
>> that in Python, objects don't have names, they have references (which
>> have names). The rest could be "implementation dependent" (no?)
> No.
>
> There are m
Antoon Pardon :
> the semantics of an assignment depends on the language
I've only seen one kind of assignment in the general-purpose programming
languages I know, maybe with the exception of Prolog and Rust.
So the assignment is the same everywhere, only the evaluation model
varies. In classic
Op 22-09-17 om 15:30 schreef Steve D'Aprano:
> On Fri, 22 Sep 2017 10:27 pm, Marko Rauhamaa wrote:
>
>> r...@zedat.fu-berlin.de (Stefan Ram):
>>
>>> Marko Rauhamaa writes:
swap(slot_ref(locals(), "x"), slot_ref(locals(), "y"))
>>> You need to be able to write the call as
>>>
>>> swap( x, y
Op 25-09-17 om 11:41 schreef Marko Rauhamaa:
> Antoon Pardon :
>
>> the semantics of an assignment depends on the language
> I've only seen one kind of assignment in the general-purpose programming
> languages I know, maybe with the exception of Prolog and Rust.
I disagree. In languages like Pasca
Antoon Pardon :
> Op 25-09-17 om 11:41 schreef Marko Rauhamaa:
>> Antoon Pardon :
>>
>>> the semantics of an assignment depends on the language
>> I've only seen one kind of assignment in the general-purpose
>> programming languages I know, maybe with the exception of Prolog and
>> Rust.
>
> I dis
Op 25-09-17 om 13:32 schreef Marko Rauhamaa:
> Antoon Pardon :
>
>> Op 25-09-17 om 11:41 schreef Marko Rauhamaa:
>>> Antoon Pardon :
>>>
the semantics of an assignment depends on the language
>>> I've only seen one kind of assignment in the general-purpose
>>> programming languages I know, may
Antoon Pardon :
> Op 25-09-17 om 13:32 schreef Marko Rauhamaa:
>> In Python, assignment "mutates the target" as well. It's only that in
>> Python, the target is always a pointer.
>
> Fine if you want to word it like that, the assignments in Pascal and
> Python are still sufficiently different.
>
>
On Mon, 25 Sep 2017 08:05 pm, Antoon Pardon wrote:
> Pass by reference doesn't imply being able to
> write a swap function.
Really. Do you have a counter-example?
> A swap function as possible in pascal requires two conditions.
>
> 1) Pass by reference
> 2) Copy-over assignment.
I don't know
Op 25-09-17 om 14:24 schreef Steve D'Aprano:
> On Mon, 25 Sep 2017 08:05 pm, Antoon Pardon wrote:
>
>> Pass by reference doesn't imply being able to
>> write a swap function.
> Really. Do you have a counter-example?
Python, smalltalk, scheme.
>
>
>> A swap function as possible in pascal requires
On 9/25/17 8:24 AM, Steve D'Aprano wrote:
On Mon, 25 Sep 2017 08:05 pm, Antoon Pardon wrote:
Pass by reference doesn't imply being able to
write a swap function.
Really. Do you have a counter-example?
A swap function as possible in pascal requires two conditions.
1) Pass by reference
2) Co
Op 25-09-17 om 14:16 schreef Marko Rauhamaa:
> Antoon Pardon :
>
>> Op 25-09-17 om 13:32 schreef Marko Rauhamaa:
>>> In Python, assignment "mutates the target" as well. It's only that in
>>> Python, the target is always a pointer.
>> Fine if you want to word it like that, the assignments in Pascal
I'm trying to work out a good algorithm to code a calculation I need
to do. I can see brute force ways of handling the problem, but I keep
getting bogged down in details, and the question seems like it's
something that should have been solved plenty of times in the past, I
just don't know where to
Op 25-09-17 om 14:53 schreef Ned Batchelder:
> On 9/25/17 8:24 AM, Steve D'Aprano wrote:
>> On Mon, 25 Sep 2017 08:05 pm, Antoon Pardon wrote:
>>
>>> Pass by reference doesn't imply being able to
>>> write a swap function.
>> Really. Do you have a counter-example?
>>
>>
>>> A swap function as possi
Antoon Pardon :
> Op 25-09-17 om 14:16 schreef Marko Rauhamaa:
>> Python only operates with pointers. You can operate with pointers in
>> Pascal as well.
>
> You are talking about implementation details.
No, I'm not. I'm talking about pointers in the abstract sense, both in
case of Python and Pas
Op 25-09-17 om 15:16 schreef Marko Rauhamaa:
> Antoon Pardon :
>
>> Op 25-09-17 om 14:16 schreef Marko Rauhamaa:
>>> Python only operates with pointers. You can operate with pointers in
>>> Pascal as well.
>> You are talking about implementation details.
> No, I'm not. I'm talking about pointers in
On Mon, Sep 25, 2017 at 6:49 AM, Paul Moore wrote:
> I'm trying to work out a good algorithm to code a calculation I need
> to do. I can see brute force ways of handling the problem, but I keep
> getting bogged down in details, and the question seems like it's
> something that should have been sol
On Mon, Sep 25, 2017 at 7:41 PM, Marko Rauhamaa wrote:
> Antoon Pardon :
>
>> the semantics of an assignment depends on the language
>
> I've only seen one kind of assignment in the general-purpose programming
> languages I know, maybe with the exception of Prolog and Rust.
>
> So the assignment i
On 25 September 2017 at 14:23, Ian Kelly wrote:
> You have a DAG, so you can sort it topologically. Then you can process
> it in that order so that everything that uses X will be processed
> before X so that when you get to X you'll know exactly how much of it
> you need and you don't have to worr
Chris Angelico :
> On Mon, Sep 25, 2017 at 7:41 PM, Marko Rauhamaa wrote:
>> In Python, all expressions evaluate pointers.
>
> And that's an assertion that isn't backed by anything in the Python
> specification. Where do you get that all Python expressions are
> pointers?
That's not what I said.
Antoon Pardon :
> Op 25-09-17 om 15:16 schreef Marko Rauhamaa:
>> No, I'm not. I'm talking about pointers in the abstract sense, both in
>> case of Python and Pascal. Neither language gives any hint as to the
>> physical nature of the pointer.
>
> Yes you are. Python doesn't have pointers at the l
On Mon, 25 Sep 2017 11:39 am, Stefan Ram wrote:
> The problem with »__module__« is that it is not always
> a permissible prefix for a use of the name. For example,
That's not what __module__ is intended for.
Just because an object obj was created inside module M doesn't mean it is
accessibl
On Mon, 25 Sep 2017 12:05 pm, Stefan Ram wrote:
> So when after
>
> import builtins
>
> the expression
>
> builtins.dir
>
> yields a value, then »dir« must be in »builtins«.
dir is in builtins *now*, but that doesn't tell you where it came from. Anything
can be added, or removed, from bu
On 25 September 2017 at 15:20, Paul Moore wrote:
> On 25 September 2017 at 14:23, Ian Kelly wrote:
>> You have a DAG, so you can sort it topologically. Then you can process
>> it in that order so that everything that uses X will be processed
>> before X so that when you get to X you'll know exact
On Mon, Sep 24, 2017 09:41 PM, Daiyue Weng wrote:
>
Hi, I tried to make a menu using print statements in Python 3. The code is
>as follows,
>
>print('insert data into: ')
>data_insert_method = ['new collection', 'existing collection']
>for index, elem in enumerate(data_insert_method):
>print(ind
On 9/25/17 9:15 AM, Antoon Pardon wrote:
Op 25-09-17 om 14:53 schreef Ned Batchelder:
On 9/25/17 8:24 AM, Steve D'Aprano wrote:
On Mon, 25 Sep 2017 08:05 pm, Antoon Pardon wrote:
Pass by reference doesn't imply being able to
write a swap function.
Really. Do you have a counter-example?
A
On Mon, 25 Sep 2017 10:53 pm, Ned Batchelder wrote:
> Would we be able to end these interminable debates if we just agree that
> we all know how it works,
If only that were true. Not everyone understands Python semantics (or for that
matter, Java/Swift/language of your choice) and I still come a
Python List,
I am trying to make practice data for plotting purposes. I am using
Python 3.6. The instructions I have are
import matplotlib.pyplot as plt
import math
import numpy as np
t = np.arange(0, 2.5, 0.1)
y1 = map(math.sin, math.pi*t)
plt.plot(t,y1)
However, at this point, I get a TypeE
On 9/25/17 12:29 PM, Steve D'Aprano wrote:
Regardless of whether I'm using Python, Swift, Java, C, Pascal or Scheme, if I
write something like:
x = Parrot(name="Polly")
(using Python syntax for simplicity) and somebody tries to tell me that the
value of x is anything but a Parrot instance named
On Sun, 24 Sep 2017 09:13 am, Bill wrote:
[context snipped for brevity]
> I agree (I was a bit hasty in my choice of words); but if they didn't
> "have" these references, it would be difficult, though not impossible,
> to refer to them. Also keep in mind that the garbage collector keeps
> track,
On 9/25/2017 12:44 PM, john polo wrote:
Python List,
I am trying to make practice data for plotting purposes. I am using
Python 3.6. The instructions I have are
import matplotlib.pyplot as plt
import math
import numpy as np
t = np.arange(0, 2.5, 0.1)
y1 = map(math.sin, math.pi*t)
Change to
On 2017-09-26 02:29, Steve D'Aprano wrote:
> x = Parrot(name="Polly")
>
> (using Python syntax for simplicity) and somebody tries to tell me
> that the value of x is anything but a Parrot instance named "Polly",
So this is a Polly-morphic constructor?
-tkc
--
https://mail.python.org/mailman/l
On 9/25/17 12:44 PM, john polo wrote:
Python List,
I am trying to make practice data for plotting purposes. I am using
Python 3.6. The instructions I have are
import matplotlib.pyplot as plt
import math
import numpy as np
t = np.arange(0, 2.5, 0.1)
y1 = map(math.sin, math.pi*t)
plt.plot(t,y1)
john polo wrote:
> Python List,
>
> I am trying to make practice data for plotting purposes. I am using
> Python 3.6. The instructions I have are
>
> import matplotlib.pyplot as plt
> import math
> import numpy as np
> t = np.arange(0, 2.5, 0.1)
> y1 = map(math.sin, math.pi*t)
> plt.plot(t,y1)
>
On 2017-09-25, john polo wrote:
> Python List,
>
> I am trying to make practice data for plotting purposes. I am using
> Python 3.6. The instructions I have are
>
> import matplotlib.pyplot as plt
> import math
> import numpy as np
> t = np.arange(0, 2.5, 0.1)
> y1 = map(math.sin, math.pi*t)
> pl
You're using Python 3, and I suspect that you're working from
instructions that assume Python 2. In Python 3, the result of map() is
a generator, not a list (which is what Python 2's map returned). In
order to get an actual list (which appears to be what you need for
your plot call) you just need t
On 25-09-17 16:29, Marko Rauhamaa wrote:
> Antoon Pardon :
>
>> Op 25-09-17 om 15:16 schreef Marko Rauhamaa:
>>> No, I'm not. I'm talking about pointers in the abstract sense, both in
>>> case of Python and Pascal. Neither language gives any hint as to the
>>> physical nature of the pointer.
>>
>>
On 25-09-17 15:37, Ned Batchelder wrote:
> On 9/25/17 9:15 AM, Antoon Pardon wrote:
>> Op 25-09-17 om 14:53 schreef Ned Batchelder:
>>> On 9/25/17 8:24 AM, Steve D'Aprano wrote:
On Mon, 25 Sep 2017 08:05 pm, Antoon Pardon wrote:
> Pass by reference doesn't imply being able to
> wr
On Tue, Sep 26, 2017 at 3:04 AM, Antoon Pardon
wrote:
> On 25-09-17 16:29, Marko Rauhamaa wrote:
>> Antoon Pardon :
>>
>>> Op 25-09-17 om 15:16 schreef Marko Rauhamaa:
No, I'm not. I'm talking about pointers in the abstract sense, both in
case of Python and Pascal. Neither language gives
On Tue, Sep 26, 2017 at 2:52 AM, Tim Chase
wrote:
> On 2017-09-26 02:29, Steve D'Aprano wrote:
>> x = Parrot(name="Polly")
>>
>> (using Python syntax for simplicity) and somebody tries to tell me
>> that the value of x is anything but a Parrot instance named "Polly",
>
> So this is a Polly-morphic
On Tue, Sep 26, 2017 at 12:26 AM, Marko Rauhamaa wrote:
> Chris Angelico :
>
>> On Mon, Sep 25, 2017 at 7:41 PM, Marko Rauhamaa wrote:
>>> In Python, all expressions evaluate pointers.
>>
>> And that's an assertion that isn't backed by anything in the Python
>> specification. Where do you get tha
On 25-09-17 19:31, Chris Angelico wrote:
> On Tue, Sep 26, 2017 at 3:04 AM, Antoon Pardon
> wrote:
>> On 25-09-17 16:29, Marko Rauhamaa wrote:
>>> Antoon Pardon :
>>>
Op 25-09-17 om 15:16 schreef Marko Rauhamaa:
> No, I'm not. I'm talking about pointers in the abstract sense, both in
On 9/25/2017 12:03 PM, Paul Moore wrote:
You're using Python 3, and I suspect that you're working from
instructions that assume Python 2. In Python 3, the result of map() is
a generator, not a list (which is what Python 2's map returned). In
order to get an actual list (which appears to be what y
I would claim that these two paragraphs do not agree.
What is stored in the variable in Pascal?
In declared variables and value parameters, the value itself.
Let's just temporarily stipulate that for reference parameters
and pointer variables actually store a pointer to the object.
Where is it r
On Tue, Sep 26, 2017 at 3:54 AM, Antoon Pardon
wrote:
> On 25-09-17 19:31, Chris Angelico wrote:
>> If by "identity" you mean the integer values returned by id(), then
>> nope, you're still wrong - there is no mapping from identities to
>> values. There is a mapping from name to object/value, and
On 25/09/17 15:26, Marko Rauhamaa wrote:
Chris Angelico :
On Mon, Sep 25, 2017 at 7:41 PM, Marko Rauhamaa wrote:
In Python, all expressions evaluate pointers.
And that's an assertion that isn't backed by anything in the Python
specification. Where do you get that all Python expressions are
On 25-09-17 20:01, Chris Angelico wrote:
> On Tue, Sep 26, 2017 at 3:54 AM, Antoon Pardon
> wrote:
>> On 25-09-17 19:31, Chris Angelico wrote:
>>> If by "identity" you mean the integer values returned by id(), then
>>> nope, you're still wrong - there is no mapping from identities to
>>> values. T
On Tue, Sep 26, 2017 at 4:30 AM, Antoon Pardon
wrote:
> On 25-09-17 20:01, Chris Angelico wrote:
>> On Tue, Sep 26, 2017 at 3:54 AM, Antoon Pardon
>> wrote:
>>> On 25-09-17 19:31, Chris Angelico wrote:
If by "identity" you mean the integer values returned by id(), then
nope, you're stil
Chris Angelico :
> On Tue, Sep 26, 2017 at 12:26 AM, Marko Rauhamaa wrote:
> Sorry, that was my bad in the terminology. But where do you get that
> all Python expressions evaluate to pointers?
What do they evaluate to if not pointers? Anton's "identities" would
work, too. "Address" would do, as
Chris Angelico :
> You need *some* support for your assertion that there are pointers,
What would convince you?
Marko
--
https://mail.python.org/mailman/listinfo/python-list
On 9/25/17 5:32 AM, Antoon Pardon wrote:
Can you explain, what you mean by "Pass-By-Reference" as far a I understand,
pass by reference means that the parameter of the function becomes an alias
of the argument, so that if the entity is mutated through one name that
mutation is visible through the
On Tue, Sep 26, 2017 at 5:35 AM, Marko Rauhamaa wrote:
> Chris Angelico :
>
>> On Tue, Sep 26, 2017 at 12:26 AM, Marko Rauhamaa wrote:
>> Sorry, that was my bad in the terminology. But where do you get that
>> all Python expressions evaluate to pointers?
>
> What do they evaluate to if not pointe
Rhodri James :
> On 25/09/17 15:26, Marko Rauhamaa wrote:
>> That's not what I said. I said all expressions *evaluate to* pointers.
>
> This may well be true in particular implementations, but it is an
> implementation detail so Chris' point still stands. Another
> implementation could evaluate ex
On Tue, Sep 26, 2017 at 5:36 AM, Marko Rauhamaa wrote:
> Chris Angelico :
>> You need *some* support for your assertion that there are pointers,
>
> What would convince you?
Evidence, or a statement from the documentation.
ChrisA
--
https://mail.python.org/mailman/listinfo/python-list
On 25/09/2017 20:40, Marko Rauhamaa wrote:
Rhodri James :
On 25/09/17 15:26, Marko Rauhamaa wrote:
That's not what I said. I said all expressions *evaluate to* pointers.
This may well be true in particular implementations, but it is an
implementation detail so Chris' point still stands. Anot
On Tue, Sep 26, 2017 at 5:51 AM, Stefan Ram wrote:
> Ned Batchelder writes:
>>Wikipedia has the right definition of call by reference
>
> Assertions can be right or wrong.
>
> Definitions cannot be right or wrong.
You have made two assertions. One of them is right. The other is wrong. :-)
C
Chris Angelico :
> On Tue, Sep 26, 2017 at 5:36 AM, Marko Rauhamaa wrote:
>> Chris Angelico :
>>> You need *some* support for your assertion that there are pointers,
>>
>> What would convince you?
>
> Evidence, or a statement from the documentation.
I mean, what piece of Python code could decide
On 2017-09-25, Steve D'Aprano wrote:
> So I believe that either "call by binding" or "call by
> assignment" could both equally apply to any and all languages
> with function parameters, regardless of implementation or the
> language's defined semantics.
I disagree on C++ where there's a keen diff
On 25-09-17 21:44, Ned Batchelder wrote:
> On 9/25/17 5:32 AM, Antoon Pardon wrote:
>> Can you explain, what you mean by "Pass-By-Reference" as far a I understand,
>> pass by reference means that the parameter of the function becomes an alias
>> of the argument, so that if the entity is mutated thr
On 25-09-17 18:29, Steve D'Aprano wrote:
>
> Regardless of whether I'm using Python, Swift, Java, C, Pascal or Scheme, if I
> write something like:
>
> x = Parrot(name="Polly")
>
> (using Python syntax for simplicity) and somebody tries to tell me that the
> value of x is anything but a Parrot
Traceback (most recent call last):
File "", line 1, in
nome = input("Digite seu nome:")
File "", line 1, in
NameError: name 'rick' is not defined
>>>
Estou com esse problema alguem me ajuda pfvr
--
https://mail.python.org/mailman/listinfo/python-list
Steve D'Aprano wrote:
Or perhaps I should say:
I disintegrate it really snooze to pyramid running when the ribbons they
apply to sandwiches are not the same as the sleep I use.
You could say that, and nobody would care much.
If you insisted that your personal interpretation of those
On Tue, Sep 26, 2017 at 8:49 AM, Stefan Ram wrote:
> |>>> from random import randint
> |
> |>>> randint
> |>
> |
> |>>> randint.__self__
> |
> |
> |>>> randint( 2, 3 )
> |2
>
> It seems I am calling the method »randint« of the object at
> »0x389798«, but I do not have to write the object into
On 26/09/17 00:49, Stefan Ram wrote:
> |>>> from random import randint
> |
> |>>> randint
> |>
> |
> |>>> randint.__self__
> |
> |
> |>>> randint( 2, 3 )
> |2
>
> It seems I am calling the method »randint« of the object at
> »0x389798«, but I do not have to write the object into the
> call!?
On 25/09/17 18:44, john polo wrote:
> Python List,
>
> I am trying to make practice data for plotting purposes. I am using
> Python 3.6. The instructions I have are
>
> import matplotlib.pyplot as plt
> import math
> import numpy as np
> t = np.arange(0, 2.5, 0.1)
> y1 = map(math.sin, math.pi*t)
I
On 26/09/17 01:04, Thomas Jollans wrote:
>
> In [1]: class C:
>
>...: def m(self):
>
>...: return True
I'll have to give my MUA a stern talking to about the importance of
whitespace. Anyway, you know what I mean.
>
>...:
--
https://mail.python.org/mailman/listinfo/python-list
On 2017-09-25 23:17, claudemirxavie...@gmail.com wrote:
Traceback (most recent call last):
File "", line 1, in
nome = input("Digite seu nome:")
File "", line 1, in
NameError: name 'rick' is not defined
Estou com esse problema alguem me ajuda pfvr
It looks like what you would get
"""
Boolean Operators
True and True is True
True and False is False
False and True is False
False and False is False
True or True is True
True or False is True
False or True is True
False or False is False
Not True is False
Not False is True
"""
If I simply w
On Tue, Sep 26, 2017 at 10:15 AM, Cai Gengyang wrote:
> """
> Boolean Operators
>
> True and True is True
> True and False is False
> False and True is False
> False and False is False
>
> True or True is True
> True or False is True
> False or True is True
> False or
On Monday, September 25, 2017 at 7:15:41 PM UTC-5, Cai Gengyang wrote:
> """
> Boolean Operators
>
> True and True is True
> True and False is False
> False and True is False
> False and False is False
>
> True or True is True
> True or False is True
> False or
I want to run a GUI program (transmission-gtk) from python. This is what I do:
import subprocess
subprocess.Popen(['transmission-gtk', link], stdout=subprocess.PIPE,
stderr=subprocess.PIPE)
Where `link` is some magnetic link.
This command opens transmission-gtk, but it haults the calling progra
On Tue, Sep 26, 2017 at 10:38 AM, Kryptxy via Python-list
wrote:
> I want to run a GUI program (transmission-gtk) from python. This is what I do:
>
> import subprocess
> subprocess.Popen(['transmission-gtk', link], stdout=subprocess.PIPE,
> stderr=subprocess.PIPE)
>
> Where `link` is some magneti
On Tue, 26 Sep 2017 05:35 am, Marko Rauhamaa wrote:
> Chris Angelico :
>
>> On Tue, Sep 26, 2017 at 12:26 AM, Marko Rauhamaa wrote:
>> Sorry, that was my bad in the terminology. But where do you get that
>> all Python expressions evaluate to pointers?
>
> What do they evaluate to if not pointer
On Tue, 26 Sep 2017 08:49 am, Stefan Ram wrote:
> So, is there some mechanism in Python that can bind a method
> to an object so that the caller does not have to specify the
> object in the call?
Indeed there is.
Methods (like functions) are first-class values in Python, so you can do:
py
On Tue, 26 Sep 2017 10:15 am, Cai Gengyang wrote:
> """
[snip text]
> """
>
> If I simply want to print a chunk of words and a paragraph like the above,
> what command should I use ?
Print to the terminal? Use print().
Print to an actual printer? There's no built-in command in Python to do so,
On Tue, 26 Sep 2017 02:54 am, Ned Batchelder wrote:
[...]
Heh, its hard to avoid getting sucked into the sinkhole of definitional debates,
isn't it? :-)
[...]
> But in this line:
>
> x = 2 + 2
>
> You can say,
>
> the value of x is 4
If we're talking about the highest level abstraction leve
r...@zedat.fu-berlin.de (Stefan Ram) writes:
> Cai Gengyang writes:
>> Boolean Operators
>>
>>True and True is True
>>True and False is False
>>False and True is False
>>False and False is False
>>True or True is True
>>True or False is True
>>False or True is Tr
On 09/25/2017 06:38 PM, Kryptxy via Python-list wrote:
> Is there any way that the GUI program is opened, and immediately the
> control returns to calling program, instead of keeping the terminal
> busy?
Yes. This is a classic situation where you want to first fork() the
process, then exec() the n
Chris Angelico wrote:
On Tue, Sep 26, 2017 at 5:35 AM, Marko Rauhamaa wrote:
Chris Angelico :
On Tue, Sep 26, 2017 at 12:26 AM, Marko Rauhamaa wrote:
Sorry, that was my bad in the terminology. But where do you get that
all Python expressions evaluate to pointers?
What do they evaluate to if
Tim Golden wrote:
On 25/09/2017 20:40, Marko Rauhamaa wrote:
Rhodri James :
On 25/09/17 15:26, Marko Rauhamaa wrote:
That's not what I said. I said all expressions *evaluate to* pointers.
This may well be true in particular implementations, but it is an
implementation detail so Chris' point
On 9/25/17 10:20 PM, Steve D'Aprano wrote:
On Tue, 26 Sep 2017 02:54 am, Ned Batchelder wrote:
[...]
We've been asked nicely by the list mod to stop :)
--Ned.
--
https://mail.python.org/mailman/listinfo/python-list
Summary: Could someone explain widget and dialog parenting - the text book is
not making sense.
##
I'm trying to understand widget parenting, from the book: Rapid GUI
Programming, pg 118, and thereabouts - he says:
A. All PyQt classes that derive from QObjectand this includes
On Tuesday, September 26, 2017 at 11:18:54 AM UTC+5:30, Veek M wrote:
> Summary: Could someone explain widget and dialog parenting - the text book is
> not making sense.
> ##
> I'm trying to understand widget parenting, from the book: Rapid GUI
> Programming, pg 118, and there
Neil Cerutti wrote:
The quest to find a succinct way to categorize Python's argument
passing for non-Python programmers strikes me as a sincere effort
to to simplify something that just isn't simple.
I don't see how it's useful to do that in the first place.
Under what circumstances would you f
On Tue, Sep 26, 2017 at 4:25 PM, Gregory Ewing
wrote:
> Neil Cerutti wrote:
>>
>> The quest to find a succinct way to categorize Python's argument
>> passing for non-Python programmers strikes me as a sincere effort
>> to to simplify something that just isn't simple.
>
>
> I don't see how it's use
Antoon Pardon wrote:
It also says: This typically means that the function can modify the variable
used as argument, something Python can do that.
No, it can't. It can modify the *object* bound to the variable,
but *not* the variable itself.
If you think it can, then you're misunderstanding wha
On 25Sep2017 20:59, Michael Torrie wrote:
On 09/25/2017 06:38 PM, Kryptxy via Python-list wrote:
Is there any way that the GUI program is opened, and immediately the
control returns to calling program, instead of keeping the terminal
busy?
Yes. This is a classic situation where you want to fi
Thomas Jollans wrote:
When an object is
constructed from a class, all functions in the class are turned into
method objects that refer back to the original object.
That's not quite true. Nothing is done to the methods at
the time an instance is created; rather, a bound method
object is created
88 matches
Mail list logo
