| |
by: Clarence Gardner |
last post by:
The super object is considered a solution to the "diamond problem".
However, it generally requires that the ultimate base class know that it
is last in the method resolution order, and hence it should not itself
use super (as well as supplying the ultimate implementation of an
overridden method.)
However, a problem comes up if that ultimate base class is also the base
class for another which inherits from it and another independent base...
|
by: Nicolas Lehuen |
last post by:
Hi,
I hope this is not a FAQ, but I have trouble understanding the behaviour of
the super() built-in function. I've read the excellent book 'Python in a
Nutshell' which explains this built-in function on pages 89-90. Based on the
example on page 90, I wrote this test code :
class A(object):
def test(self):
print 'A'
|
by: Michele Simionato |
last post by:
Here is an idea for a nicer syntax in cooperative method calls,
which is not based on Guido's "autosuper" example. This is just a
hack, waiting for a nicer "super" built-in ...
Here is example of usage:
from cooperative import Cooperative
class B(Cooperative):
def print_(self):
|
by: Delaney, Timothy C (Timothy) |
last post by:
http://aspn.activestate.com/ASPN/Cookbook/Python/Recipe/286195
This is a new version of super that automatically determines which
method needs to be called based on the existing stack frames. It's much
nicer for writing cooperative classes. It does have more overhead, but
at this stage I'm not so concerned about that - the important thing is
it actually works.
Note that this uses sys._getframe() magic ...
|
by: Steven Bethard |
last post by:
When would you call super with only one argument? The only examples I
can find of doing this are in the test suite for super. Playing around
with it:
py> class A(object):
.... x = 'a'
....
py> class B(A):
.... x = 'b'
....
|
| |
by: Kent Johnson |
last post by:
Are there any best practice guidelines for when to use
super(Class, self).__init__()
vs
Base.__init__(self)
to call a base class __init__()?
The super() method only works correctly in multiple inheritance when the
base classes are written to expect it, so "Always use super()" seems
like bad advice. OTOH sometimes you need super() to get correct
behaviour. ISTM "Only use super() when you know you need it" might be
|
by: Pupeno |
last post by:
Hello,
I have a class called MyConfig, it is based on Python's
ConfigParser.ConfigParser.
It implements add_section(self, section), which is also implemented on
ConfigParser.ConfigParser, which I want to call.
So, reducing the problem to the bare minimum, the class (with a useless
add_section that shows the problem):
.... def add_section(self, section):
.... super(MyConfig, self).add_section(section)
|
by: Mike Krell |
last post by:
I'm reading Alex Martelli's "Nutshell" second edition. In the section
called "Cooperative superclass method calling", he presents a diamond
inheritance hierachy:
class A(object):
def met(self):
print "A.met"
class B(A):
def met(self):
print "B.met"
|
by: ddtl |
last post by:
Hello everybody.
Consider the following code:
class A(object):
def met(self):
print 'A.met'
class B(A):
def met(self):
|
by: Erwan Adam |
last post by:
Hi all,
I have a problem with the use of descriptors
and super. The file is :
# ---------------
class Desc(object):
def __init__(self, class_name):
self.class_name = class_name
|
by: Hystou |
last post by:
Most computers default to English, but sometimes we require a different language, especially when relocating. Forgot to request a specific language before your computer shipped? No problem! You can effortlessly switch the default language on Windows 10 without reinstalling. I'll walk you through it.
First, let's disable language synchronization. With a Microsoft account, language settings sync across devices. To prevent any complications,...
|
| |
by: Oralloy |
last post by:
Hello folks,
I am unable to find appropriate documentation on the type promotion of bit-fields when using the generalised comparison operator "<=>".
The problem is that using the GNU compilers, it seems that the internal comparison operator "<=>" tries to promote arguments from unsigned to signed.
This is as boiled down as I can make it.
Here is my compilation command:
g++-12 -std=c++20 -Wnarrowing bit_field.cpp
Here is the code in...
|
by: jinu1996 |
last post by:
In today's digital age, having a compelling online presence is paramount for businesses aiming to thrive in a competitive landscape. At the heart of this digital strategy lies an intricately woven tapestry of website design and digital marketing. It's not merely about having a website; it's about crafting an immersive digital experience that captivates audiences and drives business growth.
The Art of Business Website Design
Your website is...
|
by: tracyyun |
last post by:
Dear forum friends,
With the development of smart home technology, a variety of wireless communication protocols have appeared on the market, such as Zigbee, Z-Wave, Wi-Fi, Bluetooth, etc. Each protocol has its own unique characteristics and advantages, but as a user who is planning to build a smart home system, I am a bit confused by the choice of these technologies. I'm particularly interested in Zigbee because I've heard it does some...
|
by: agi2029 |
last post by:
Let's talk about the concept of autonomous AI software engineers and no-code agents. These AIs are designed to manage the entire lifecycle of a software development project—planning, coding, testing, and deployment—without human intervention. Imagine an AI that can take a project description, break it down, write the code, debug it, and then launch it, all on its own....
Now, this would greatly impact the work of software developers. The idea...
|
by: isladogs |
last post by:
The next Access Europe User Group meeting will be on Wednesday 1 May 2024 starting at 18:00 UK time (6PM UTC+1) and finishing by 19:30 (7.30PM).
In this session, we are pleased to welcome a new presenter, Adolph Dupré who will be discussing some powerful techniques for using class modules.
He will explain when you may want to use classes instead of User Defined Types (UDT). For example, to manage the data in unbound forms.
Adolph will...
|
by: conductexam |
last post by:
I have .net C# application in which I am extracting data from word file and save it in database particularly. To store word all data as it is I am converting the whole word file firstly in HTML and then checking html paragraph one by one.
At the time of converting from word file to html my equations which are in the word document file was convert into image.
Globals.ThisAddIn.Application.ActiveDocument.Select();...
|
| |
by: 6302768590 |
last post by:
Hai team
i want code for transfer the data from one system to another through IP address by using C# our system has to for every 5mins then we have to update the data what the data is updated we have to send another system
|
by: muto222 |
last post by:
How can i add a mobile payment intergratation into php mysql website.
|
3
