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by: Raymond Hettinger |
last post by:
Please comment on the new PEP for reverse iteration methods.
Basically, the idea looks like this:
for i in xrange(10).iter_backwards(): # 9,8,7,6,5,4,3,2,1,0
<do something with i>
The HTML version is much more readable than the ReST version.
See:
http://www.python.org/peps/pep-0322.html
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by: KraftDiner |
last post by:
I have a list, and within it, objects are marked for deletion.
However when I iterate through the list to remove objects
not all the marked objects are deleted..
here is a code portion:
i = 0
for obj in self.objList:
if obj.mouseHit:
print 'delete + ' + `i`
self.objList.pop(i)
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by: Jeremy Owens-Boggs |
last post by:
We are trying to implement a dual list box selection where you have two list
boxes, You highlight items in the right side list box, click a button and
this moves those items over to the left hand list box. The problem is that
if there are many items selected (thousands), then removing the items from
the right side list box takes for ever because we are removing them one at a
time, which causes the listbox to re-index everything before we...
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by: robert |
last post by:
In very rare cases a program crashes (hard to reproduce) :
* several threads work on an object tree with dict's etc. in it. Items
are added, deleted, iteration over .keys() ... ). The threads are "good"
in such terms, that this core data structure is changed only by atomic
operations, so that the data structure is always consistent regarding
the application. Only the change-operations on the dicts and lists
itself seem to cause problems...
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by: Henning Hasemann |
last post by:
I'm using a stl-priority queue and want
- find out if a certain item is contained in the queue
- to be able iterate over all items without having to pop() them, order
does not matter.
I couldnt find methods for these which suprises me as both should be
easily solvable with access to the underlying vector.
Did I just miss these methods? Can I somehow access the vector to get .
begin() .end() and .find()?
|
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by: stef |
last post by:
hello,
can someone tell me why the following iteration doesn't work,
and
how I should replace empty strings in a list with a default value.
.... if items=='':
.... items='3'
....
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by: news.microsoft.com |
last post by:
I am looping through an iteration and I would like to test the next item but
if its not the one that I want how do I put it back so that when my foreach
continues it is in the next iteration?
Bill
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by: Florian Lindner |
last post by:
Hello,
can I determine somehow if the iteration on a list of values is the last
iteration?
Example:
for i in :
if last_iteration:
print i*i
else:
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by: mdpems |
last post by:
Hi,
I have a combo box that is set up to receive items from another from and post as a record set. The items will post to the list as I click an add item button. I also have a remove item button. I also have a total button at the bottom of my screen that when clicked will total the items in the list. What I want to be able to do is retotal the items in the list after removing an item. Right now if I remove items from my list it will not be...
|
by: =?Utf-8?B?Sm9lbCBNZXJr?= |
last post by:
I have created a custom class with both value type members and reference type
members. I then have another custom class which inherits from a generic list
of my first class. This custom listneeds to support cloning:
Public Class RefClass
Public tcp As TcpClient
Public name As String
End Class
Public Class RefClassList
Inherits List(Of RefClass)
Implements ICloneable
|
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,...
|
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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.
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Your website is...
|
by: Hystou |
last post by:
Overview:
Windows 11 and 10 have less user interface control over operating system update behaviour than previous versions of Windows. In Windows 11 and 10, there is no way to turn off the Windows Update option using the Control Panel or Settings app; it automatically checks for updates and installs any it finds, whether you like it or not. For most users, this new feature is actually very convenient. If you want to control the update process,...
|
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: 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();...
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by: TSSRALBI |
last post by:
Hello
I'm a network technician in training and I need your help.
I am currently learning how to create and manage the different types of VPNs and I have a question about LAN-to-LAN VPNs.
The last exercise I practiced was to create a LAN-to-LAN VPN between two Pfsense firewalls, by using IPSEC protocols.
I succeeded, with both firewalls in the same network. But I'm wondering if it's possible to do the same thing, with 2 Pfsense firewalls...
|
by: bsmnconsultancy |
last post by:
In today's digital era, a well-designed website is crucial for businesses looking to succeed. Whether you're a small business owner or a large corporation in Toronto, having a strong online presence can significantly impact your brand's success. BSMN Consultancy, a leader in Website Development in Toronto offers valuable insights into creating effective websites that not only look great but also perform exceptionally well. In this comprehensive...
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