Search Results

Search found 32397 results on 1296 pages for 'reference program'.

Page 816/1296 | < Previous Page | 812 813 814 815 816 817 818 819 820 821 822 823  | Next Page >

• How do I silence strace's message "[ Process PID=15733 runs in 64 bit mode. ]" ?

  - by Ross Rogers

  I'm using memoize.py, but strace keeps injecting the following into the program output each time a process is executed: [ Process PID=15733 runs in 64 bit mode. ] or [ Process PID=16503 runs in 32 bit mode. ] How can I silence strace such that it doesn't inject these statements into the log file? At the very least, I'd like these statements to only go into the output file that memoize.py is instructing strace to use. It's already telling strace to put its output into a specific file ithrough arguments -o /tmp/OUTFILE. Note that strace is being called with the -f parameter to follow child processes.

  Read the article

• Where can I find drivers for Fujitsu Scansnap fi-5110 for Windows 7 x64

  - by Tone

  I have a Fujitsu scanner that I cannot get working on Windows 7 x64. I have downloaded both the TWAIN and ISIS x64 drivers from the fujitsu website but Windows still does not recognize. I have tried it out using GIMP and Paint.net, neither program sees the scanner. I have also tried the fi-5000N Configuration Tool from Fujitsu but to no avail. Anyone know what drivers i need to install? Here's the info on the back of the scanner: Model: Fi-5110E0X2 Part No: PA03360-B015 Serial No: 026132 Date: 2005-09

  Read the article

• Perform shell operation through secure shell

  - by Ben

  Is it possible to perform a shell operation from a bash script through a secure shell. Here is an example of why you may want to do this. Lets say you have a simple unix operating system that you need only build and run on, but you want to do all of the development on another machine. I want to write a bash script that has the following functionality: scp file to location on other machine ssh to other machine cd into correct directory make run program scp results to file on original computer exit ssh Is this remotely possible? (Pardon the Pun :p)

  Read the article

• how do I make my Dualshock 3 gamepad work in Ubuntu 14.04?

  - by user290527

  When my desktop computer was running Ubuntu 12.04, my PS3 controllers would work with USB. I didn't need to do any special setup. I could just plug it in before I start SuperTuxKart and it would recognize it. I can also do this on my laptop (still running 12.04). Since I gave my desktop a fresh install of Ubuntu 14.04, the controller would never work. I have played with some installed software that I found when looking for information. Here is what I get with xboxdrv: liam@Liam-CustomDesktop:~$ sudo xboxdrv --detach-kernel-driver xboxdrv 0.8.5 - http://pingus.seul.org/~grumbel/xboxdrv/ Copyright © 2008-2011 Ingo Ruhnke <[email protected]> Licensed under GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html> This program comes with ABSOLUTELY NO WARRANTY. This is free software, and you are welcome to redistribute it under certain conditions; see the file COPYING for details. Controller: PLAYSTATION(R)3 Controller Vendor/Product: 054c:0268 USB Path: 003:012 Controller Type: Playstation 3 USB Your Xbox/Xbox360 controller should now be available as: /dev/input/js0 /dev/input/event16 Press Ctrl-c to quit, use '--silent' to suppress the event output So the existence of this controller is acknowledged at on my computer. But it never works for input. In my old installation, I didn't even need to get software like xboxdrv for it to work. I have never tried bluetooth on either computer, but I don't think I even have that on my desktop. So now, how do I make my gamepad work in Ubuntu 14.04?

  Read the article

• unable to run OpenOffice from text mode

  - by dilip

  I have installed OpenOffice in Redhat5 in text mode. When I tried to start OpenOffice using the command: sudo /usr/lib/openoffice/program/soffice "-accept=socket,host=localhost,port=8100; urp;StarOffice.ServiceManager " -nologo -headless -nofirststartwizard: " It shows the error saying javaldx: Could not find a Java Runtime Environment! So I installed jre in my system, and then I did not get any error but OpenOffice does not start. Also I checked the process regarding OpenOffice, but I haven's seen any process related to that. Can any one help me to fix this issue?

  Read the article

• qtcreator keyboard problem: azerty/qwerty

  - by Allen

  I picked up the qt SDK and I've been trying it out. I'm working in English but I have a French AZERTY keyboard. When I run Qt Designer all is fine. When I run Qt Creator or Qt Designer from within Qt Creator things work as though I had a QWERTY keyboard, so I have to hit the "q" key to get an "a", etc. Qt Creator is version 1.3.1 and it is using Qt 4.6.2. My PC is running XP. What is going on and what is to be done? Any ideas? Editing a program in this setup is, of course, impossible! Luckily I discovered I can use an external editor, so I can use xemacs, which would be my first choice anyway, but this keyboard problem is a real nuisance! Thanks.

  Read the article

• First class language in Visual Studio 2010 using F#

  - by Aamir Hasan

   F# is a strongly-typed language like C#.It is light weight syntax just like Python.It give you math-like feel. let data = (1,2,3)   let rotations (x, y, z) =     [ (x, y, z);       (z, x, y);       (y, z, x) ]   let derivative f x =     let p1 = f (x - 0.05)     let p2 = f (x + 0.05)     (p2 - p1) / 0.1   let f x = 2.0*x*x - 6.0*x + 3.0   let df = derivative f   System.Console.WriteLine("The derivative of f at x=4 is {0}", df 4.0)   This program will print: “The derivative of f at x=4 is 10”That’s a quick look at just a few of the exciting features of F#.  For more on F#, visit the F# Development Center on MSDN.  

  Read the article

• What are the software design essentials? [closed]

  - by Craig Schwarze

  I've decided to create a 1 page "cheat sheet" of essential software design principles for my programmers. It doesn't explain the principles in any great depth, but is simply there as a reference and a reminder. Here's what I've come up with - I would welcome your comments. What have I left out? What have I explained poorly? What is there that shouldn't be? Basic Design Principles The Principle of Least Surprise – your solution should be obvious, predictable and consistent. Keep It Simple Stupid (KISS) - the simplest solution is usually the best one. You Ain’t Gonna Need It (YAGNI) - create a solution for the current problem rather than what might happen in the future. Don’t Repeat Yourself (DRY) - rigorously remove duplication from your design and code. Advanced Design Principles Program to an interface, not an implementation – Don’t declare variables to be of a particular concrete class. Rather, declare them to an interface, and instantiate them using a creational pattern. Favour composition over inheritance – Don’t overuse inheritance. In most cases, rich behaviour is best added by instantiating objects, rather than inheriting from classes. Strive for loosely coupled designs – Minimise the interdependencies between objects. They should be able to interact with minimal knowledge of each other via small, tightly defined interfaces. Principle of Least Knowledge – Also called the “Law of Demeter”, and is colloquially summarised as “Only talk to your friends”. Specifically, a method in an object should only invoke methods on the object itself, objects passed as a parameter to the method, any object the method creates, any components of the object. SOLID Design Principles Single Responsibility Principle – Each class should have one well defined purpose, and only one reason to change. This reduces the fragility of your code, and makes it much more maintainable. Open/Close Principle – A class should be open to extension, but closed to modification. In practice, this means extracting the code that is most likely to change to another class, and then injecting it as required via an appropriate pattern. Liskov Substitution Principle – Subtypes must be substitutable for their base types. Essentially, get your inheritance right. In the classic example, type square should not inherit from type rectangle, as they have different properties (you can independently set the sides of a rectangle). Instead, both should inherit from type shape. Interface Segregation Principle – Clients should not be forced to depend upon methods they do not use. Don’t have fat interfaces, rather split them up into smaller, behaviour centric interfaces. Dependency Inversion Principle – There are two parts to this principle: High-level modules should not depend on low-level modules. Both should depend on abstractions. Abstractions should not depend on details. Details should depend on abstractions. In modern development, this is often handled by an IoC (Inversion of Control) container.

  Read the article

• SQLAuthority News – Why I am Going to Attend #SQLPASS Summit 2012 – Seattle

  - by pinaldave

  I am going to Seattle I once again attend SQLPASS this year. This will be my fourth SQLPASS. Lots of people ask me why I am going to SQLPASS every year. Well there are so many different reasons for that. I go to SQLPASS because – I love it!  Here are few of the reasons I go to SQLPASS. Meet friends whom I have never met before Meet community at large – it is fun to hang around with like minded people Meet Rick Morelan – my book co-author and friend Attend various SQL Parties – there are so many parties around – see the list below Explore various new tools from various third party vendors Meet fellow Chapter Leaders and Regional Mentors And of course attend SQL Server Learning Sessions from industry known experts. The three-day event will be marked by a lot of learning, sharing, and networking, which will help me increase both my knowledge and contacts. PASS Summit provides me a golden opportunity to build my network as well as to identify and meet potential customers or employees. If I am a consultant or vendor who is looking for better career opportunities, PASS Summit is the perfect platform to meet and show my skills to my new potential customers and employers. Further, breakfasts, lunches, and evening receptions, which are included with registration, are meant to provide more and more networking opportunities. At PASS Summit, I gain not only new ideas but also inspire myself from top professionals and experts. Learning new things about SQL Server, interacting with different kinds of professionals, and sharing issues and solutions will definitely improve my understanding and turn me into a better SQL Server professional who can leverage and optimize SQL Server to improve business. I am going – are you joining? Note: This is re-blogged with modification from my 2 years old blog posts on a similar subject. Reference: Pinal Dave (http://blog.sqlauthority.com) Filed under: About Me, Pinal Dave, SQL, SQL Authority, SQL Query, SQL Server, SQL Tips and Tricks, SQLAuthority News, SQLServer, T SQL, Technology

  Read the article

• Wake timers don't wake computer from sleep mode

  - by Joe

  I'm got a custom built PC running 64 bit Windows 7 Ultimate. So far everything works great except for one thing: it will not wake up from sleep mode for a wake timer or scheduled task. Sleep mode itself works great. If it's sleeping, it wakes successfully when I press the power button, mash the keyboard, wiggle the mouse, or send a WOL packet. The only problem is wake timers. I even tried the program WakeupOnStandBy but it looks like that uses wake timers, so it doesn't do anything for me either. And yes, wake timers are enabled: Any ideas on how to fix the problem, or troubleshoot it? I'd imagine that there would be a log somewhere telling me exactly why the wake timers are having trouble, but if there is I haven't found it.

  Read the article

• Do I need to uninstall lxde before installing kde-standard?

  - by A Roy

  I have ubuntu 12.04 (upgraded from 10.04) and since I disliked the default desktop, I installed lxde (sudo apt-get install lxde). This was good except that occasionally there would be trouble with Firefox (blinking on panel) so that finally I had to close it and then a error message from Ubuntu was issued. I had asked about it before but there was no useful response so now I want to move to another desktop which will hopefully not create the problem I have now. My doubt is, should I first uninstall lxde and then install kde (sudo apt-get install kde-standard) or is it enough to install kde without uninstalling lxde? In case it is necessary to uninstall, should I use the command sudo apt-get remove lxde or is there a better command for it? You may also help me with choice of desktop. I installed lxde since this is simple and lightweight. I am assuming that kde will not be as simple but hopefully not create problem like above. But I hate if it takes too long to log in or to launch a program like Firefox etc and also there should not be icons fixed on the left part of terminal (I hate to keep icons on desktop since these are distracting). Some of these issues were present with default Ubuntu 12.04. So is my choice of kde-standard appropriate or are there better desktop alternatives?

  Read the article

• NFS server generating "invalid extent" on EXT4 system disk?

  - by Stephen Winnall

  I have a server running Xen 4.1 with Oneiric in the dom0 and each of the 4 domUs. The system disks of the domUs are LVM2 volumes built on top of an mdadm RAID1. All the domU system disks are EXT4 and are created using snapshots of the same original template. 3 of them run perfectly, but one (called s-ub-02) keeps on being remounted read-only. A subsequent e2fsck results in a single "invalid extent" diagnosis: e2fsck 1.41.14 (22-Dec-2010) /dev/domu/s-ub-02-root contains a file system with errors, check forced. Pass 1: Checking inodes, blocks, and sizes Inode 525418 has an invalid extent (logical block 8959, invalid physical block 0, len 0) Clear<y>? yes Pass 2: Checking directory structure Pass 3: Checking directory connectivity Pass 4: Checking reference counts Pass 5: Checking group summary information /dev/domu/s-ub-02-root: 77757/655360 files (0.3% non-contiguous), 360592/2621440 blocks The console shows typically the following errors for the system disk (xvda2): [101980.903416] EXT4-fs error (device xvda2): ext4_ext_find_extent:732: inode #525418: comm apt-get: bad header/extent: invalid extent entries - magic f30a, entries 12, max 340(340), depth 0(0) [101980.903473] EXT4-fs (xvda2): Remounting filesystem read-only I have created new versions of the system disk. The same thing always happens. This, and the fact that the disk is ultimately on a RAID1, leads me to preclude a hardware disk error. The only obvious distinguishing feature of this domU is the presence of nfs-kernel-server, so I suspect that. Its exports file looks like this: /exports/users 192.168.0.0/255.255.248.0(rw,sync,no_subtree_check) /exports/media/music 192.168.0.0/255.255.248.0(rw,sync,no_subtree_check) /exports/media/pictures 192.168.0.0/255.255.248.0(rw,sync,no_subtree_check) /exports/opt 192.168.0.0/255.255.248.0(rw,sync,no_subtree_check) /exports/users and /exports/opt are LVM2 volumes from the same volume group as the system disk. /exports/media is an EXT2 volume. (There is an issue where clients see /exports/media/pictures as being a read-only volume, which I mention for completeness.) With the exception of the read-only problem, the NFS server appears to work correctly under light load for several hours before the "invalid extent" problem occurs. There are no helpful entries in /var/log. All of a sudden, no more files are written, so you can see when the disk was remounted read-only, but there is no indication of what the cause might be. Can anyone help me with this problem? Steve

  Read the article

• Recommended boot partition size for Windows 7

  - by dwj

  I started using One Big Partition for everything and separating data out with folders when I got my current computer years ago. I'm preparing to upgrade my system from Windows XP to Windows 7 and I thought I might go back to putting my data on a separate partition. Most likely I'll just use the default OS install. My current Program Files tree has ~16 GB of stuff. Thinking ahead though, I've had XP installed for years. Who knows what apps I'm going to install down the line? This, of course, begs the question: How big do I make my Windows 7 install partition?

  Read the article

• Collision Resolution

  - by ultifinitus

  Hey all, I'm making a simple side-scrolling game, and I would appreciate some input! My collision detection system is a simple bounding box detection, so it's really easy to implement. However my collision resolution is ridiculous! Currently I have a little formula like this: if (colliding(firstObject,secondObject)) firstObject.resolve_collision(yAxisOffset); if (colliding(firstObject,secondObject)) firstObject.resolve_collision(xAxisOffset); where yAxisOffset is only set if the first object's previous y position was outside the second object's collision frame, respectively xAxisOffset as well. Now this is working great, in general. However there is a single problem. When I have a stack of objects and I push the first object against that stack, the first object get's "stuck," on the stack. What's I think is happening is the object's collision system checks and resolves for collisions based on creation time, so If I check one axis, then the other, the object will "sink" object directly along the checking axis. This sinking action causes the collision detection routine to think there's a gap between our position and the other object's position, and when I finally check the object that I've already sunk into, my object's position is resolved to it's original position... All this is great, and I'm sure if I bang my head against a wall long enough i'll come up with a working algorithm, but I'd rather not =). So what in the heck do you think I should do? How could I change my collision resolution system to fix this? Here's the program (temporary link, not sure how long it'll last) (notes: arrow keys to navigate, click to drop block, x to jump) I'd appreciate any help you can offer!

  Read the article

• how a pure functional programming language manage without assignment statements?

  - by Gnijuohz

  When reading the famous SICP,I found the authors seem rather reluctant to introduce the assignment statement to Scheme in Chapter 3.I read the text and kind of understand why they feel so. As Scheme is the first functional programming language I ever know something about,I am kind of surprised that there are some functional programming languages(not Scheme of course) can do without assignments. Let use the example the book offers,the bank account example.If there is no assignment statement,how can this be done?How to change the balance variable?I ask so because I know there are some so-called pure functional languages out there and according to the Turing complete theory,this must can be done too. I learned C,Java,Python and use assignments a lot in every program I wrote.So it's really an eye-opening experience.I really hope someone can briefly explain how assignments are avoided in those functional programming languages and what profound impact(if any) it has on these languages. The example mentioned above is here: (define (make-withdraw balance) (lambda (amount) (if (>= balance amount) (begin (set! balance (- balance amount)) balance) "Insufficient funds"))) This changed the balance by set!.To me it looks a lot like a class method to change the class member balance. As I said,I am not familiar with functional programming languages,so if I said something wrong about them,feel free to point out.

  Read the article

• Running programs in cache and registers

  - by OSX NINJA

  In my operating systems class we were shown a picture depicting a hierarchy of memory starting from most expensive and fastest at the top and least expensive and slowest at the bottom. At the very top was registers and underneath it was cache. The professor said that the best place to run programs is in cache. I was wondering why programs can't be run in registers? Also, how can a program load itself into cache? Isn't the cache something that's controlled by the CPU and works automatically without software control?

  Read the article

• How To: Modernize IBM AIX/Power To Oracle Solaris/SPARC

  - by Cinzia Mascanzoni

  Learn how to leverage the Modernizing IBM AIX/Power to Oracle Solaris/SPARC Program, to assist you in migrating IBM AIX/Power customers to the Oracle Solaris/SPARC platform.  Customers will find Oracle Solaris/SPARC solutions an ideal long-term platform, providing greatly significantly reduced capital and operational cost savings and greatly improved performance and productivity. Normal 0 false false false EN-US X-NONE X-NONE /* Style Definitions */ table.MsoNormalTable {mso-style-name:"Table Normal"; mso-tstyle-rowband-size:0; mso-tstyle-colband-size:0; mso-style-noshow:yes; mso-style-priority:99; mso-style-qformat:yes; mso-style-parent:""; mso-padding-alt:0cm 5.4pt 0cm 5.4pt; mso-para-margin-top:0cm; mso-para-margin-right:0cm; mso-para-margin-bottom:10.0pt; mso-para-margin-left:0cm; line-height:115%; mso-pagination:widow-orphan; font-size:11.0pt; font-family:"Calibri","sans-serif"; mso-ascii-font-family:Calibri; mso-ascii-theme-font:minor-latin; mso-fareast-font-family:"Times New Roman"; mso-fareast-theme-font:minor-fareast; mso-hansi-font-family:Calibri; mso-hansi-theme-font:minor-latin; mso-bidi-font-family:"Times New Roman"; mso-bidi-theme-font:minor-bidi;}

  Read the article

• Stop YOUR emails from starting those company-wide Reply All email threads

  - by deadlydog

  You know you’ve seen it before; somebody sends out a company-wide email (or email to a large diverse audience), and a couple people or small group of people start replying-all back to the email with info/jokes that is only relative to that small group of people, yet EVERYBODY on the original email list has to suffer their inbox filling up with what is essentially spam since it doesn’t pertain to them or is something they don’t care about. A co-worker of mine made an ingenious off-hand comment to me one day of how to avoid this, and I’ve been using it ever since.  Simply place the email addresses of everybody that you are sending the email to in the BCC field (not the CC field), and in the TO field put your email address.  So everybody still gets the email, and they are easily able to reply back to you about it.  Note though, that the people you send the email to will not be able to see everyone else that you sent it to. Obviously you might not want to use this ALL the time; there are some times when you want a group discussion to occur over email.  But for those other times, such as when sending a NWR email about the car you are selling, asking everyone what a good local restaurant near by is, collecting personal info from people, or sharing a handy program or trick you learnt about (such as this one ), this trick can save everybody frustration and avoid wasting their time.  Trust me, your coworkers will thank you; mine did

  Read the article

• SQL – Contest to Get The Date – Win USD 50 Amazon Gift Cards and Cool Gift

  - by Pinal Dave

  If you are a regular reader of this blog – you will find no issue at all in resolving this puzzle. This contest is based on my experience with NuoDB. If you are not familiar with NuoDB, here are few pointers for you. Step by Step Guide to Download and Install NuoDB – Getting Started with NuoDB Quick Start with Admin Sections of NuoDB – Manage NuoDB Database Quick Start with Explorer Sections of NuoDB – Query NuoDB Database In today’s contest you have to answer following questions: Q 1: Precision of NOW() What is the precision of the NuoDB’s NOW() function, which returns current date time? Hint: Run following script on NuoDB Console Explorer section: SELECT NOW() AS CurrentTime FROM dual; Here is the image. I have masked the area where the time precision is displayed. Q 2: Executing Date and Time Script When I execute following script - SELECT 'today' AS Today, 'tomorrow' AS Tomorrow, 'yesterday' AS Yesterday FROM dual; I will get the following result:   NOW – What will be the answer when we execute following script? and WHY? SELECT CAST('today' AS DATE) AS Today, CAST('tomorrow' AS DATE) AS Tomorrow, CAST('yesterday'AS DATE) AS Yesterday FROM dual; HINT: Install NuoDB (it takes 90 seconds). Prizes: 2 Amazon Gifts 2 Limited Edition Hoodies (US resident only)   Rules: Please leave an answer in the comments section below. You must answer both the questions together in a single comment. US resident who wants to qualify to win NuoDB apparel please mention your country in the comment. You can resubmit your answer multiple times, the latest entry will be considered valid. Last day to participate in the puzzle is June 24, 2013. All valid answer will be kept hidden till June 24, 2013. The winner will be announced on June 25, 2013. Two Winners will get USD 25 worth Amazon Gift Card. (Total Value = 25 x 2 = 50 USD) The winner will be selected using a random algorithm from all the valid answers. Anybody with a valid email address can take part in the contest. Reference: Pinal Dave (http://blog.sqlauthority.com) Filed under: Big Data, PostADay, SQL, SQL Authority, SQL Puzzle, SQL Query, SQL Server, SQL Tips and Tricks, T SQL, Technology Tagged: NuoDB

  Read the article

• JS closures - Passing a function to a child, how should the shared object be accessed

  - by slicedtoad

  I have a design and am wondering what the appropriate way to access variables is. I'll demonstrate with this example since I can't seem to describe it better than the title. Term is an object representing a bunch of time data (a repeating duration of time defined by a bunch of attributes) Term has some print functionality but does not implement the print functions itself, rather they are passed in as anonymous functions by the parent. This would be similar to how shaders can be passed to a renderer rather than defined by the renderer. A container (let's call it Box) has a Schedule object that can understand and use Term objects. Box creates Term objects and passes them to Schedule as required. Box also defines the print functions stored in Term. A print function usually takes an argument and uses it to return a string based on that argument and Term's internal data. Sometime the print function could also use data stored in Schedule, though. I'm calling this data shared. So, the question is, what is the best way to access this shared data. I have a lot of options since JS has closures and I'm not familiar enough to know if I should be using them or avoiding them in this case. Options: Create a local "reference" (term used lightly) to the shared data (data is not a primitive) when defining the print function by accessing the shared data through Schedule from Box. Example: var schedule = function(){ var sched = Schedule(); var t1 = Term( function(x){ // Term.print() return (x + sched.data).format(); }); }; Bind it to Term explicitly. (Pass it in Term's constructor or something). Or bind it in Sched after Box passes it. And then access it as an attribute of Term. Pass it in at the same time x is passed to the print function, (from sched). This is the most familiar way for my but it doesn't feel right given JS's closure ability. Do something weird like bind some context and arguments to print. I'm hoping the correct answer isn't purely subjective. If it is, then I guess the answer is just "do whatever works". But I feel like there are some significant differences between the approaches that could have a large impact when stretched beyond my small example.

  Read the article

• Is there a way to use an inline PNG image in an Outlook e-mail?

  - by James McMahon

  In my work as a developer I sometimes find myself sending details emails with screenshots to illustrate some point or problem. The content of these screenshots is often text. So knowing that PNG is much better at handle compression of images with text, I save my screenshots as PNG and insert them into my email. However whenever I check my sent mail, the images are clearly being sent as a JPG because they look horribly compressed. I'm using Outlook 2003 as my email program. Is there some setting I can change to make Outlook send inline images as PNGs?

  Read the article

• What's the best way to create a static utility class in python? Is using metaclasses code smell?

  - by rsimp

  Ok so I need to create a bunch of utility classes in python. Normally I would just use a simple module for this but I need to be able to inherit in order to share common code between them. The common code needs to reference the state of the module using it so simple imports wouldn't work well. I don't like singletons, and classes that use the classmethod decorator do not have proper support for python properties. One pattern I see used a lot is creating an internal python class prefixed with an underscore and creating a single instance which is then explicitly imported or set as the module itself. This is also used by fabric to create a common environment object (fabric.api.env). I've realized another way to accomplish this would be with metaclasses. For example: #util.py class MetaFooBase(type): @property def file_path(cls): raise NotImplementedError def inherited_method(cls): print cls.file_path #foo.py from util import * import env class MetaFoo(MetaFooBase): @property def file_path(cls): return env.base_path + "relative/path" def another_class_method(cls): pass class Foo(object): __metaclass__ = MetaFoo #client.py from foo import Foo file_path = Foo.file_path I like this approach better than the first pattern for a few reasons: First, instantiating Foo would be meaningless as it has no attributes or methods, which insures this class acts like a true single interface utility, unlike the first pattern which relies on the underscore convention to dissuade client code from creating more instances of the internal class. Second, sub-classing MetaFoo in a different module wouldn't be as awkward because I wouldn't be importing a class with an underscore which is inherently going against its private naming convention. Third, this seems to be the closest approximation to a static class that exists in python, as all the meta code applies only to the class and not to its instances. This is shown by the common convention of using cls instead of self in the class methods. As well, the base class inherits from type instead of object which would prevent users from trying to use it as a base for other non-static classes. It's implementation as a static class is also apparent when using it by the naming convention Foo, as opposed to foo, which denotes a static class method is being used. As much as I think this is a good fit, I feel that others might feel its not pythonic because its not a sanctioned use for metaclasses which should be avoided 99% of the time. I also find most python devs tend to shy away from metaclasses which might affect code reuse/maintainability. Is this code considered code smell in the python community? I ask because I'm creating a pypi package, and would like to do everything I can to increase adoption.

  Read the article

• What is a good alternative to Camtasia Studio (screen recording not required)?

  - by tnorthcutt

  I'm looking for a good alternative to Camtasia Studio - really just the video editing part. My current workflow looks like this: Record audio (with Audacity) Save screenshots of the subject matter (websites) Import audio and screenshots into Camtasia Use the zoom and callout tools in Camtasia to go along with the spoken audio and highlight certain parts of the sites Given that Camtasia costs $300 (I've been using a trial version), I'd like to find something else that can do this well. I suspect that a lot of the pricetag for Camtasia is because of the screencasting features. I've tried Sony Vegas Movie Studio, but it was really a lot more than I need. I'd like something relatively simple (so that new users can pick it up relatively quickly), with the zoom and callout functionality that Camtasia has. Any suggestions? Edit for clarity: I'm looking for a program that will let me combine the screenshots and audio, and (most importantly) that has features equal to or better than Camtasia for text overlays, highlighting areas on the screen, etc.

  Read the article

• What are the correct set of DLLs and placement for SSL support in mIRC on 64 bit Windows?

  - by honkbish

  I am using mIRC 6.35 on a fresh install of Windows 7 64-bit. No matter what versions of the OpenSSL DLLs I use, nor where I place them, I cannot get mIRC to work with SSL; I get the "ssl not supported" error. The recommended DLLs on mIRC's help page (/ssl.html on the mIRC site) do not work no matter if I put them in the mIRC Program Files folder or anywhere else. Same with the DLLs from http://www.slproweb.com/products/Win32OpenSSL.html which also require Visual C++ runtimes. I am unsure if I need the 32bit DLLs (because mIRC itself is 32 bit), or the 64-bit DLLs, nor where to correctly place them. (Perhaps I currently have a case of incorrect DLLs in a path I am not aware of overriding the other placements...) Does ANYONE have any tips for 'debugging' this, or do they themselves have it working? Thanks in advance!

  Read the article

• How to set User Tile image Windows Server 2012?

  - by moontear

  I found this nice article of how to add a user tile image via code: http://joco.name/2010/12/06/i-discovered-the-new-windows-user-tile-api/ This is also explained in depth here: http://msitpros.com/?p=1036 I have problems with doing this in Windows Server 2012. Whenever I run the code: using System; using System.Runtime.InteropServices; namespace FejesJoco { class Program { [DllImport("shell32.dll", EntryPoint = "#262", CharSet = CharSet.Unicode, PreserveSig = false)] public static extern void SetUserTile(string username, int whatever, string picpath); [STAThread] static void Main(string[] args) { SetUserTile(args[0], 0, args[1]); } } } I get an exception: Error HRESULT E_FAIL has been returned from a call to a COM component. Can anyone get this to work and add a user tile image via code?

  Read the article

< Previous Page | 812 813 814 815 816 817 818 819 820 821 822 823  | Next Page >