sjud9227 wrote:
Doesn't
assigning seconds/(60*60) mean that calculating 6*hours will give me 6 hours
in seconds?
No, it's giving you 6 seconds in hours. (That should
give you a clue as to what you should have done
instead. :-)
Also, I don't know what you were trying to do with
these two statem
Chris Angelico wrote:
OP is using 2.7.6, so short of a __future__ directive, that won't
actually give 6 seconds in hours
Oops, yes, you're right! (I always use future division
these days, so I tend to forget about that.)
and // is unnecessary.
It's still a good habit to get into, though, si
Roy Smith wrote:
In article <[email protected]>,
Steven D'Aprano wrote:
A dubious analogy, since there are artists who would say that attacking
the canvas with a knife and setting the remains on fire count as a form
of artistic creation :-)
That's __del__(
Mark Lawrence wrote:
Called when the instance is created. The arguments are those passed to
the class constructor expression. If a base class has an __init__()
method, the derived class’s __init__() method, if any, must explicitly
call it to ensure proper initialization of the base class part o
Steven D'Aprano wrote:
(In hindsight, it was probably a mistake for Python to define two create-
an-object methods, although I expect it was deemed necessary for
historical reasons.
I'm not sure that all of the reasons are historical. Languages
that have a single creation/initialisation method
Steven D'Aprano wrote:
# --- Untested ---
# Automatically call each __new__ constructor method, starting from
# the most fundamental (object) and ending with the current class.
stack = []
for c in cls.__mro__:
if hasattr(c, '__new__'):
stack.append(c.__new__)
while stack:
stack.po
Roy Smith wrote:
O(-1). In Soviet Russia, operation performs you!
It's rumoured that the PSU is developing a time
machine module that can achieve O(-n), but
--
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Chris Angelico wrote:
mylist = reorder_generator(mylist)
You can iterate over it, but can't index it. But hey, it complies with
the space/time requirements!
Rather than a generator, you could use a view object
that rearranges the indices when you access an element.
That would comply with the s
Steven D'Aprano wrote:
Secondly, O(N*log N) applies to *comparison sorts*. Non-comparison sorts
such as radix-, counting- and bucket-sort have average case complexity of
O(N).
They require additional space, though.
--
Greg
--
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Marko Rauhamaa wrote:
What I'm saying is that Python does not prevent mutable keys but tries
to do that with lists and tuples.
I think Python should stop trying.
Do you volunteer to answer all the posts from beginners
complaining that "the dict type is broken" because they
used a list as a key
BartC wrote:
I simply stated that Python's approach was novel. Steven D'Aprano then
responded by belittling my view, and effectively trashing every language
I've ever used.
He pointed out that many other dynamic languages construct
functions on the fly the same way that Python does, going
all
Rick Johnson wrote:
the lie about: "THERE SHOULD BE ONE (AND PREFERABLY ONLY ONE) WAY TO DO
IT!".
You're misquoting the Zen. It says there should be one
*obvious* way to do it.
--
Greg
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Michael Torrie wrote:
A country in which citizens only expect things from the country and
never think about their ability to change and benefit the country is a
week country indeed.
Yep, definitely won't last more than 7 days. :-)
--
Greg
--
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Grant Edwards wrote:
And don't get me started on those people who use those "integrated
circuits" instead of transistors, relays, and tubes...
Transistors? You don't know how good you had it.
In my day we had to poke the dopant atoms into
the silicon one at a time with the point of a
needle.
-
Chris Angelico wrote:
So start simplistic, and then look
into it like this: "Hey, see how you're doing this five times? There
HAS to be a better way!" (With acknowledgement to Raymond Hettinger.)
That gave me visions of a little animated cartoon of
Raymond popping up in the corner of the screen
Steven D'Aprano wrote:
Quote:
if six.PY2:
# Python 2 code
elif six.PY3:
# Python 3 code
In this case, no code will get executed on Python 4 at all!
Which is good, because if no code is executed, it can't exhibit
any bugs.
Everyone should write thei
Steven D'Aprano wrote:
Maybe Guido will change his mind and we'll have 3.10. 3.11, 3.12, ...
Who says that version numbers have to be base 10? After
3.9 we could have 3.A, 3.B, ... 3.Z, and then we have
a long list of Unicode characters to work through before
we're forced to bump the major num
On 1/14/2016 3:55 PM, Rick Johnson wrote:
And if the owners refuse to sell, no problem, you offer
their customers the same services at bargain basement
discounts
But... that would require you to develop your own
version, which is what you're trying to avoid!
--
Greg
--
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Chris Angelico wrote:
and 3.X would wreak havoc with people's heads.
The danger there is that 3.X would sound so cool (everything
is cooler with an X in it) that nobody would want to move
past it. So after 3.X we would get 3.X.1, ... and then
3.X.X.1, ...
At some point people would start abbre
Mark Lawrence wrote:
On 15/01/2016 15:55, jmp wrote:
Hi pyple !
In the UK it's "purple", a bit like "color" is wrong, it's "colour".
Now, let's not make fun of people with English as a second
language. That was obviously written with a Jäger accent:
http://girlgenius.wikia.com/wiki/J%C3%A4
Random832 wrote:
The main source of confusion is that $foo[5] is an element of @foo.
$foo{'x'} is an element of %foo. Both of these have absolutely nothing
to do with $foo.
And this is where Perl seems totally insane to me. Obviously
it knows from the square brackets that foo[5] is referring
to
[email protected] wrote:
On Thursday, January 28, 2016 at 6:34:34 PM UTC-8, Chris Angelico wrote:
https://xkcd.com/353/
I have this comic pinned to the outside wall of my cubicle at work, where I
use Python for 98% of my work.
Another good thing to pin to your wall:
http://www.gentooge
Rustom Mody wrote:
1. One can use string-re's instead of compiled re's
And I gather that string REs are compiled on first use and
cached, so you don't lose much by using them most of the
time.
--
Greg
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Michael Torrie wrote:
I'm not sure how SQLite handles it, or even what the SQL spec says, but
I know in MySQL you could do something like this:
SELECT count(id) as row_count,`tablename`.* FROM `tablename` WHERE condition
I don't think that's strictly valid SQL. I know of at least
one SQL imple
Chris Angelico wrote:
hash_to_filename = defaultdict(list)
for fn in files:
# Step 1: Hash every file.
hash = calculate_hash(fn)
# Step 2: Locate all pairs of files with identical hashes
hash_to_filename[hash].append(fn)
I think you can avoid hashing the files altogether.
Firs
Veek. M wrote:
I'm writing a price parser. I need to do the equivalent of perl's
$$var to instantiate a class where $car is the class_name.
I'm passing 'Ebay' or 'Newegg' or 'Amazon' via cmd-line. I have a module
named ebay.py and a class called Ebay (price parser). I do something
like:
\> m
Ben Finney wrote:
One valid filesystem path each time it's accessed. That is, behaviour
equivalent to ‘tempfile.mktemp’.
My question is because the standard library clearly has this useful
functionality implemented, but simultaneously warns strongly against its
use.
But it *doesn't*, if your r
Ben Finney wrote:
The existing behaviour of ‘tempfile.mktemp’ – actually of its internal
class ‘tempfile._RandomNameSequence’ – is to generate unpredictable,
unique, valid filesystem paths that are different each time.
But that's not documented behaviour, so even if mktemp()
weren't marked as
Herman wrote:
I want to pass in the key to the default_factory of defaultdict and I found
that defaultdict somehow can intercept my call to dict.__getitem__(self,
key),
What's happening here is that defaultdict doesn't actually
override __getitem__ at all. Instead, it overrides __missing__,
whi
BartC wrote:
Our system must have been more advanced then, or designed for training.
We used a time-sharing 'dec-system 10' and it was usually accessed via
interactive terminals, either teletypes or the odd VDU.
According to Wikipedia the first interactive version of
Dartmouth BASIC appeared i
Ian Kelly wrote:
All metaclasses are subclasses of type, so all classes are instances of type.
I think that's about the most general definition you
can find. Almost everything else that you might think
of as being part of the classness of a class can be
overridden.
Another definition might be
王珺 wrote:
Suppose io_operation() takes 3 seconds, then how can I write something like
future = io_operation()
print('Start')
time.sleep(1)
print('Something')
time.sleep(2)
print(future.result())
that print 'Start' immediately and the result of io_operation() 3 seconds
later.
Yes, Python can d
pyfreek wrote:
The following snippet alone is taking 1 minute to execute. is there any best
way to find 'No such file' other than using child.before
if not scrutinFile.startswith('/') :
scrutinFile = '/'+ scrutinFile
scrutinFileFtp = direc
[email protected] wrote:
Now, I've noticed people talking about importing os.path. Is there any
reason to use "import os.path" rather than "import os"? Both of them will
still put the "os" module into the global namespace.
In the case of os.path it doesn't matter, because the
os module im
Steven D'Aprano wrote:
That's exactly why I miss Hypercard so much. The builder and the runtime are
the same thing.
Maybe someone would like to resurrect this project:
http://pythoncard.sourceforge.net/
--
Greg
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Tim Golden wrote:
A few teachers recently were discussing this on Twitter. One suggested
that his pupils always add their initials to whatever filename they use.
Works well until Lawrence Ian Bernstein writes his own
module called "url"...
--
Greg
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alister wrote:
On Thu, 03 Mar 2016 11:03:55 -0700, Ian Kelly wrote:
On Thu, Mar 3, 2016 at 10:21 AM, alister
wrote:
Antimatter has positive mass.
Are you sure?
mix 1 atom of hydrogen + 1 of anti hydrogen & you end up with 0 mass
That's not because anti-hydrogen has negative mass, though.
Oscar Benjamin wrote:
If we want to be precise then
it's pointless to even refer to the "rest mass" of something that is
never at rest.
Which just shows that the term "rest mass" is a bit silly.
It came from some confused thinking very early in the
development of relativity. The physicists soon
Rodrick Brown wrote:
if m.group(1) not in od.keys():
od[m.group(1)] = int(m.group(2))
else:
od[m.group(1)] += int(od.get(m.group(1),0))
Others have pointed out what's wrong with this, but here's
a general tip: Don't repeat complicated subexpressions
such as m.group(1
Rick Johnson wrote:
I have witnessed the mayhem that occurs when a language does
not mandate module encapsulation (Ruby, i'm looking directly
at you), and while i agree with the Python designers
that modules must *ALWAYS* be mandatory, i am not convinced
that module space should be so strictl
Rick Johnson wrote:
Sure, that's reliable in most cases, but your argument
assumes that the actual source code for the symbol exists in
the module from which it was imported, when it could just as
well exist N-levels below that that module, due to chained
imports.
Unless the module is doing som
Chris Angelico wrote:
There are many places where there are limits (hard or soft) on message
lengths. Some of us still use MUDs and 80-character line limits.
Business cards or other printed media need to be transcribed by hand.
Dictation of URLs becomes virtually impossible when they're
arbitrari
Steven D'Aprano wrote:
On Thu, 17 Mar 2016 11:31 am, Chris Angelico wrote:
orig = globals()[cls.__name__]
I wouldn't want to rely on it working with decorator syntax either. Even if
it does now, I'm not sure that's a language guarantee.
The following idiom relies on similar behaviour:
Chris Angelico wrote:
So maybe it's a language guarantee that
hasn't been written down somewhere,
The Language Reference says:
[the decorator] is invoked with the function object as the only argument.
The returned value is bound to the function name instead of the function
object.
The "
Gene Heskett wrote:
But I learned a lot about hot ($2400F) iron too.
2400 dollars farenheit? That's an intriguing unit...
Or is it meant to be the temperature in hex?
--
Greg
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Chris Angelico wrote:
I've seen much MUCH worse... where multiple conditional
expressions get combined arithmetically, and then the result used
somewhere...
In the days of old-school BASIC it was common to
exploit the fact that boolean expressions evaluated
to 0 or 1 (or -1, depending on your d
Michael Torrie wrote:
As far as I can tell, no BASIC dialect I've looked at (DOS and Linux
worlds only), has ever had any logical operators like AND (&&), OR (||),
and NOT (!). They only appear to have bitwise operators (&,|,~ C
equivalent). The fact that comparison operators returned 0 and -1
On Monday, October 27, 2014 5:33:17 PM UTC-7, alex23 wrote:
It is NP-complete, meaning that there is no easy solution.
The correct answer is "Not possible".
No, that's not the correct answer. Being NP-complete doesn't
mean something is impossible, or even hard to do. All it
means is that nobo
Seymore4Head wrote:
The course is free. You can't beat the price. It is only for a few
more weeks.
But if it's teaching you things that are blatantly wrong
in relation to Python, it may be doing more harm than
good.
--
Greg
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Steven D'Aprano wrote:
Like all good Pythonistas[1], we hate Java and think that getter/setter
methods are pointless. But come on, they're not *wrong*,
What's wrong is the statement that getters and setters
are necessary to allow the implementation to change
without changing the interface. That
Denis McMahon wrote:
On Mon, 03 Nov 2014 06:29:39 +, Dan Sommers wrote:
What's the difference between a Diamond and a Rhombus?
Oops, I was thinking a rhombus was a general parallelogram, my mistake.
Some diamonds are neither rhombuses nor parallelograms:
http://minecraft.gamepedia.co
Jean-Michel Pichavant wrote:
Python uses the descriptor protocol which is
basically getters and setters. It's is just hidden by a strange decorator
syntax.
This is about the interface, not the implementation.
"Getters and setters" in this context means designing
the API of your class to have th
Steve Hayes wrote:
On Thu, 6 Nov 2014 15:22:45 + (UTC), Grant Edwards
wrote:
According to
http://www.theregister.co.uk/2014/11/06/hackers_use_gmail_drafts_as_dead_drops_to_control_malware_bots:
404: Page not found
Works if you remove the spurious colon from the end of the url.
--
Gre
Robert Voigtländer wrote:
I need to generate all variants of a 2D array with variable dimension sizes
which fit a specific rule. (up to 200*1000)
Um... you realise there are 200**1000 solutions for the
200x1000 case? Are you sure that's really what you want?
--
Greg
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https://mail.python.org
Ethan Furman wrote:
On 11/06/2014 10:59 PM, dieter wrote:
A possibility to get the original approach implemented looks like:
make "__call__" a descriptor on the class which looks up the real
method on the instance.
This still wouldn't get the signatrue correct, though.
Why not? O
Ethan Furman wrote:
And the thing going on is the normal python behavior (in
__getattribute__, I believe) of examining the returned attribute to see
if it is a descriptor, and if so invoking it.
Only if you look it up through the instance, though.
Normally, if you look up an attribute on a cla
Grant Edwards wrote:
What the zipper on a coat does is convert two separate sequences into
a single sequence where the members alternate between the two input
sequences.
True, the zipper analogy isn't quite accurate. It's
hard to think of an equally concise and suggestive
name, however.
--
Gr
Fabio Zadrozny wrote:
can someone from python-dev give some background of why
that's the way it is?
It's because, with new-style classes, a class is also an
instance (of class "type" or a subclass thereof). So
without that rule, it would be ambiguous whether a dunder
method applied to instances
Roy Smith wrote:
Wouldn't it make more sense to use four periods?
def spam(arg)
for x in seq
pass
Conversely, to save space you should be able to
stack one of the dots of an ellipsis on top and
write it as either .: or :.
Taking this even further, we could allow all
charac
Chris Angelico wrote:
Just out of curiosity, why does the stdlib need modules for
manipulating .wav and other sound files, but we have to go to PyPI to
get a PostgreSQL client?
I suspect it's mainly for historical reasons. The wave
module has been around since the very early days of
Python when
Marko Rauhamaa wrote:
Unicode strings is not wrong but the technical emphasis on Unicode is as
strange as a "tire car" or "rectangular door" when "car" and "door" are
what you usually mean.
The reason Unicode gets emphasised so much is that
until relatively recently, it *wasn't* what "string"
u
Kasper Peeters wrote:
I have something like
def fun():
cfun_that_creates_q_in_local_scope()
def fun2():
cfun_that_wants_to_see_if_q_is_available()
So the Python side actually doesn't see 'q' directly at all.
I am willing to elaborate on this if you want
I think
Kasper Peeters wrote:
I could in principle decide to make these settings a proper
Python object, and ask the user to create one and pass it along at
every C-function call.
I would make the C functions methods of the object holding
the settings. Your nested function example would then look
somet
Ned Batchelder wrote:
I would use thread locals for this:
https://docs.python.org/2/library/threading.html#threading.local
You could get dynamic scoping that way, but the OP
seems to want lexical scoping.
--
Greg
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Israel Brewster wrote:
Primary because they aren’t forms, they are links. And links are, by
definition, GET’s. That said, as I mentioned in earlier replies, if using a
form for a simple link is the Right Way to do things like this, then I can
change it.
I'd look at it another way and say that a
Kasper Peeters wrote:
That may have been the design plan, but in Python 2.7.6, I definitely
am able to inject locals via PyEval_GetLocals() and have them be visible
both from the C and Python side;
What seems to be happening is that the dict created by
PyEval_GetLocals() is kept around, so you
Steven D'Aprano wrote:
I do not believe that good code must be obviously right. It's okay for code
to be subtly right.
If you write code as subtly as you can, you're not
subtle enough to debug it...
--
Greg
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Terry Reedy wrote:
However, this 'beautiful' code has a trap. If one gets rid of the
seemingly unneeded temporary list res by telescoping the last two lines
into a bit too much into
yield tuple(next(i) for i in iters)
we now have an infinite generator, because tuple() swallows th
Albert-Jan Roskam wrote:
I was trying to change the one-dim array into a two-dim array so
I could easily retrieve columns. I now use a pandas DataFrame to do that.
Numpy can do that, if I understand what you want correctly,
but it requires an unintuitive trick.
The trick is to index the array
Dave Tian wrote:
A: a = ‘h’
> B: b = ‘hh’
According to me understanding, A should be faster as characters would
shortcut this 1-byte string ‘h’ without malloc;
It sounds like you're expecting characters to be stored
"unboxed" like in Java.
That's not the way Python works. Objects are used
Chris Angelico wrote:
On Tue, Dec 30, 2014 at 7:17 AM, Ian Kelly wrote:
You could try renaming the .pyc instead of deleting it.
Hmm, and in doing so I just learned that they don't, after all, have
any sort of timestamp in them - I thought they did.
I think it contains the timestamp of the
Chris Angelico wrote:
On Sat, Jan 3, 2015 at 4:15 AM, Rick Johnson
wrote:
Those who refuse to be a part of the modern world can
suffer the troubles of forking the code into their ancient
systems -- and i will not loose any sleep over the issue.
By the way, is this "loose" part of your "moder
Steven D'Aprano wrote:
I'm just sketching an informal proof. If you want to make it vigorous
I think the usual term is "rigorous", unless the mathematician
is taking some kind of stimulant... :-)
--
Greg
--
https://mail.py
Steven D'Aprano wrote:
Arguably, *integer* 0**0 could be zero, on the basis that you can't take
limits of integer-valued quantities, and zero times itself zero times
surely has to be zero.
It's far from clear what *anything* multiplied by
itself zero times should be.
A better way of thinking a
Skip Montanaro wrote:
The way this is done, is
that the message is removed from the underlying mbox file, and the
archive regenerated. That changes the counter for every message after
that point
Would it help to replace the message with a stub
instead of deleting it altogether?
--
Greg
--
http
Ian Kelly wrote:
Wait, are you actually asking why bool is a doubleton? If nobody has
answered that, I think probably nobody understood you were asking it,
because it shouldn't need to be explained.
What does perhaps need explaining is why Python goes
out of its way to *enforce* the doubleton-n
Andrew Robinson wrote:
I never said subclassing bool is the 'only' solution; I
have indicated it's a far better solution than many.
An assertion with which we very much disagree.
I have spent well over
twenty years on and off dealing with boolean values that are very often
mixed indistingu
Dennis Lee Bieber wrote:
On Fri, 16 Jan 2015 01:50:00 +1100, Chris Angelico
declaimed the following:
>
Problem: You have a smartphone with a 4x4 pixel screen.
BIG problem, considering that a late 70s DECWriter needed 5x7 pixels
for glyphs in an 8x10 pixel character cell {as I recall.
Marko Rauhamaa wrote:
Gregory Ewing :
If those are 24-bit RGB pixels, you could encode
3 characters in each pixel.
Not since Python3. Characters are Unicode now so you'll need to dedicate
a pixel for each character.
Depends on which characters you want. With the
Flexible Chro
Steven D'Aprano wrote:
I've never really understand why "abstract factory", "factory method"
and "builder" are considered different design patterns. They're variants on
the same idea.
I think it's because they address different problems. Factories
are for hiding the details of how an object is
Chris Angelico wrote:
Is this to get
around style guides that reject this kind of model:
x = Foo(
opt1=True,
opt2=True,
color=Yellow,
)
It's to get around the fact that you *can't* do that in
Java, because it doesn't have keyword arguments.
This is a source of a lot of the complex
Tim wrote:
I have this type of situation and wonder if I should use a global variable
outside the recursive function instead of passing the updated parameter
through.
No! Globals are evil, at least for that sort of thing.
The way you're doing it is fine.
The only thing I would change is to wra
Roy Smith wrote:
I will commonly put something like:
import logging
logger = logging.getLogger("logger-name-for-my-module")
But that's not really a global variable, it's a
global constant. There's nothing wrong with those,
we use them all the time -- classes, functions, etc.
If you were to re
Yawar Amin wrote:
Cool ... but it looks like this can still potentially hit the max
recursion limit?
It depends on the nature of your data. If the data is
a tree, it's very unlikely you'll reach the recursion
limit unless the tree is massively unbalanced.
If there's a chance of that, or if th
Steven D'Aprano wrote:
def a(x=4)
x+2
end
a + b => 7
a+b => 7
a+ b => 7
a +b => 3
A shiny new penny for any non-Ruby coder who can explain that!
Seems pretty obvious to me: the Ruby interpreter is
infested with demons.
DWIM = Demonic Whim Infers Meaning
--
Greg
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https://mail.pyth
Chris Angelico wrote:
Every once in a while, someone looks at Py2's print statement and
Py3's print function and says, "why not allow function calls without
parentheses". This right here is why not.
There's also the fact that the parens are needed to
distinguish between calling a function and u
Albert van der Horst wrote:
Knowing that the source is an mbox file, I don't need to follow
that link to conclude that one is not very inventive.
It suffices to replace the content of the message by
a repetition of '\n'.
Editing the mbox file isn't the problem. From what I
gather, telling m
Jussi Piitulainen wrote:
I prefer parentheses.
They are not nearly as fragile.
So do I, but the other day I had occasion to write a
small piece of VBScript, and I discovered that it
actually *forbids* parens around the arguments to
procedure calls (but not function calls).
Fortunately, it requ
Andrew Robinson wrote:
The spelling caveat is great -- and in Python the object named in bool's
honor is spelled bool (lowercase too). ;)
That doesn't change the fact that the man was called
George Boole (not Charles!). If you're going to refer
to him by name, it's only courteous to make some
Mario Figueiredo wrote:
That error message has me start that thread arguing that the error is
misleading because the Sub object does have the __bases__ attribute.
It's the Sub instance object that does not have it.
Some of the answers that were given argued that in Python object =
instance.
Mario Figueiredo wrote:
I couldn't think of a way to
demonstrate that a class object does not participate in its own
inheritance rules. Only instances of it can.
I think I may see where your reasoning is going astray.
You think that an instance "inherits" methods from its
class in the same way
Mario Figueiredo wrote:
An instance of an object is capable of doing so, per its
class definitions. Whereas a Python class object is not.
>>> class Master:
def func(self):
pass
>>> class Sub(Master):
pass
>>> Sub.func()
TypeError: func()
Steven D'Aprano wrote:
In fairness, "inherit" is standard terminology for the way instances get
their behaviour from their class.
I'm not sure that's true, but even if it is, it's
not the same kind of inheritance relationship as
exists between a class and a base class, which was
my point.
Al
Steven D'Aprano wrote:
Actually, if you look at my example, you will see that it is a method and it
does get the self argument. Here is the critical code again:
from types import MethodType
polly.talk = MethodType(
lambda self: print("Polly wants a spam sandwich!"), polly)
Doing it by han
Michael Torrie wrote:
On 01/30/2015 10:31 AM, Rustom Mody wrote:
And what about the grey area between lightweight and heavyweight?
That's what the smart pointers are for.
I'd say it's what higher-level languages are for. :-)
I'm completely convinced nowadays that there is
*no* use case for
Steven D'Aprano wrote:
[quote]
If the object has a method named __dir__(), this method will
be called and must return the list of attributes.
[end quote]
The first inaccuracy is that like all (nearly all?) dunder methods, Python
only looks for __dir__ on the class, not the inst
Steven D'Aprano wrote:
If I have an arbitrary pointer, and I want to check if it is safe to
dereference, how do I do it? Surely I'm not expected to write something
like:
if type(ptr) == A:
if ptr != Anil: ...
if type(ptr) == B:
if ptr != Bnil: ...
etc. That would be insane. So how doe
Devin Jeanpierre wrote:
I answered my own question later, by accident: Java nulls are castable
to each other if you do it explicitly (routing through Object -- e.g.
(Something)((Object) ((SomeOtherThing) null.
So in that sense, there is only one null, just with some arbitrary
compiler distin
Steven D'Aprano wrote:
Both K.f and K.g are methods, even though only one meets the definition
given in the glossary. The glossary is wrong.
Or rather, it is not so much that it is *wrong*, but that it is incomplete
and over-simplified.
I agree with that; a more complete definition would be
"a
Steven D'Aprano wrote:
In Python 2, they are methods. In Python 3, they are functions, and aren't
converted into methods until you access them via the instance:
They're methods in both cases. They don't have to be
"converted into methods"; they already are, by virtue
of their location and inte
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