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• Python - Get Instance Variables

  - by Chris Bunch

  Is there a built-in method in Python to get an array of all a class' instance variables? For example, if I have this code: class hi: def __init__(self): self.ii = "foo" self.kk = "bar" Is there a way for me to do this: >>> mystery_method(hi) ["ii", "kk"] Thanks guys! Edit: I originally had asked for class variables erroneously. Thanks to all who brought this to my attention!

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• Ideal way to cancel an executing AsnycTask

  - by Samuh

  I am running remote audio-file-fetching and audio file playback operations in a background thread using AsnycTask. A Cancellable progress bar is shown for the time the fetch operation runs. I want to cancel/abort the AsnycTask run when the user cancels(decides against) the operation. What is the ideal way to handle such a case? Thanks.

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• Looking for a visualization and charting package

  - by Jeff Meatball Yang

  I have some specific requirements, with the most important at the top: Can plot line and stacked bar charts Can customize mouse events (hover, click) on chart data Compatible and performant with IE7/8 (likely will use excanvas.js) Can optionally control label formats, legends, colors Open source preferred, or at least can purchase the source Can be hosted locally I have seen a couple potentially good ones: Google's interactive charts (But code must be accessed via Google servers) EJSChart Flot Does anyone have experience with these, or others, and can make a recommendation?

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• What is the Null Character literal in TSQL?

  - by David in Dakota

  I am wondering what the literal for a Null character (e.g. '\0') is in TSQL. Note: not a NULL field value, but the null character (see link). I have a column with a mix of typical and a null character. I'm trying to replace the null character with a different value. I would have thought that the following would work but it is unsuccessfull: select REPLACE(field_with_nullchar, char(0), ',') from FOO where BAR = 20

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• Caching view-port based Geo-queries

  - by friism

  I have a web app with a giant Google Map in it. As users pan and zoom around on the map, points are dynamically loaded through AJAX call which include the viewport bounds (NE and SW corner coordinates) and some other assorted parameters. How do I cache these request for points? The problem is that the parameters are highly variable and (worst) not discrete i.e. floats with a lots of decimal places. I'm using ASP.NET-MVC/C#/LINQ2SQL/SQL-Server but the problem is not tied to that platform. This is the signature of the the relevant method: [AcceptVerbs(HttpVerbs.Post)] public JsonResult Data(string date, string categories, string ne_lat, string ne_lng, string sw_lat, string sw_lng)

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• Stop browser from filling textboxes with details

  - by TenaciousImpy

  Hi, I've run into a really annoying problem, and I'm hoping it's just a setting I've missed. I've got an ASP.NET application which allows users to enter their username/password in various places (e.g. login, change password, change username etc..). When I logged in, the browser asked if I would like to store the user details. Usually, I click 'no', but this time I decided to click 'yes'. Now, certain textboxes in my form are prefilled with the username or password. Is it possible to remove these, as they sometimes appear in textboxes which shouldn't be prefilled. I tried setting AutoCompleteType=none and Text='' but it still gets prefilled. The textboxes don't have much in common, except the same CssClass and, for password boxes, TextMode=password. The names are different, although sometimes they include the word name (e.g. fullName, userName). Is there a way to stop the browser from filling certain textboxes? Thanks

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• Prototype Library use of !! operator

  - by Rajat

  Here is a snippet from Prototype Javascript Library : Browser: (function(){ var ua = navigator.userAgent; var isOpera = Object.prototype.toString.call(window.opera) == '[object Opera]'; return { IE: !!window.attachEvent && !isOpera, Opera: isOpera, WebKit: ua.indexOf('AppleWebKit/') > -1, Gecko: ua.indexOf('Gecko') > -1 && ua.indexOf('KHTML') === -1, MobileSafari: /Apple.*Mobile/.test(ua) } })(), This is all good and i understand the objective of creating a browser object. One thing that caught my eye and I haven't been able to figure out is the use of double not operator !! in the IE property. If you read through the code you will find it at many other places. I dont understand whats the difference between !!window.attachEvent and using just window.attachEvent. Is it just a convention or is there more to it that's not obvious?

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• VisualAssert Testing in C++, Loading a test fixture.

  - by C_Bevan

  Good day, I am learning Testing in Visual Studio C++ and I have several tutorials which I have followed. I am trying to load a test fixture. I have tried to put the test .cpp file in many different places but it will still not pick up on it when I click on "Run Tests" or "Run Tests without debugging" In the tutorials I found, they seemed to load into the Test Explorer automatically, but in mine is an icon with a X + (PROJECTNAME).EXE and when I hoover over it I get the process exited without registering with the agent... this is due to the model not containing any test fixtures... How can I load my tests into the Test Explorer...or register them with my project... I've tried right click and "Add Fixture...".... but that just starts a new test file and I have the same problem. Anybody know how I solve this issue?

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• Regex - Modifying strings except in specified enclosures - PHP

  - by Kovo

  I have found similar answers to my current needs on SO, however I am still trying to grasp modifying strings based on a rule, except in certain enclosures within those strings. Example of what Im trying to accomplish now: preg_replace("/\s*,\s*/", ",", $text) I found the above in many places. It will remove spaces before and after all commas in a string. That works great. However, if I want to exclude modifying commas found within " ", I am not sure how that rule has to be modified. Any help? Thanks! EDIT: I want to clarify my question: I would like all whitespace before and after the commas in the following sentence removed, except commas found in double or single quotes: a, b , c "d, e f g , " , h i j ,k lm,nop Expected result: a,b,c "d, e f g , ",h i j,k lm,nop

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• What is the purpose of return'ing $this when setting vars in the model

  - by TaMeR

  I am a self thought hobby programmer and therefore don't have the fundamentals always down the way you professionals do. So please excuse me if this is basic. What is the purpose or benefit of return'ing $this when setting vars in the model. I have seen this done in other places too but cant figure this out. Sample code: public function setAlias($Alias){ $this->_Alias = (string) $Alias; return $this; } public function getAlias(){ return $this->_Alias; }

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• What's the easiest/fast way to get my website up and running on the web?

  - by ggfan

  This is probably a really really beginner's question, but I would like to know what's the fastest way to get my site on the web so that people can start using it. I'm learning everything about programming out of books and at home so I don't have much experience. --Before I go to like godaddy.com or such site to get a domain name, is there any free sites that would allow me to upload my site so users can use it? I have html,css,php,mysql,javascipt in my scripts so I don't think many sites allow free uploads with such languages. --If I can't find a free site, is there any good places to get a domain name and web hosting that supports most languages at a low price? (doesn't have to be professional hosting because I am still a beginner) --If I go to say godaddy.com and get their webhosting and domain name, would I be allowed to run php,mysql,python,java on it? (I looked at some hosting sites and most only allow php/mysql)

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• Convert HTML DOM into a multidimensional array

  - by dclowd9901

  Where keys are represented by element type and values are represented by #foo and .bar (spaced and ready for explode()). Is it possible, or does something exist for it? I know that this question might incite some wrath, and I'm hoping nobody links to that post about parsing HTML, but I'm hoping it's not impossible. Thanks for the help. Addendum: Ideally, PHP would be used, since it's the only scripting language I know.

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• In subform of a MS Access form, how to hide/show the vertical scroll bars as needed?

  - by PowerUser

  I have a subform in an MS Access form which is not hiding/showing the vertical scroll bars as needed. In the example picture, the vertical scroll bar is showing even though there aren't enough records to warrant vertical scrolling. How do I get the scroll bars to show only when they are needed? Do I need to add an if-then condition to the on_load event? or is there an easier option?

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• Having trouble with time.sleep

  - by Waterfox

  When I run, for example: print("[",end=" ") time.sleep(1) print("=",end=" ") time.sleep(1) print("=",end=" ") time.sleep(1) print("=",end=" ") time.sleep(1) print("=",end=" ") time.sleep(1) print("=",end=" ") time.sleep(1) print("=",end=" ") time.sleep(1) print("=",end=" ") time.sleep(1) print("=",end=" ") time.sleep(1) print("=",end=" ") time.sleep(1) print("=",end=" ") time.sleep(1) print("]",end=" ") Nothing happens for 10 seconds, then the whole [ = = = = = = = = = = ] appears. How can I prevent that so that it can act as a sort of progress bar?

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• How to order a window to front if you are not in the Application in Objective-C

  - by ahmet2106

  Hello, Is there a way to make a "makeKeyAndOrderToFront" without beeing in the Application? If I am in Safari and in the Menu Bar there is a MenuItem to my App, after I press this, i want to show a window of my App in the Front (makeKeyAndOrderToFront makes this just if you are in the Application). Which way can I use? And how can I animate this Window (like Tweeties Add new Tweet - atebits.com). Thank you!

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• Installing GDAL for Python

  - by Nate

  I am trying to install GDAL for python on a Windows XP machine (Python 2.6 currently installed) following the instructions at http://trac.osgeo.org/gdal/wiki/GdalOgrInPython (as is mirrored in a hundred other places). It says I need both the GDAL source (or Windows binary) and the python bindings. The python binding are be downloaded from the python cheeseshop (http://pypi.python.org/pypi/Python_GDAL/1.3.1). I don't see a download link on this page nor can I locate the python binding elsewhere - all instruction I can find seem to point to the same cheeseshop page. This seems like I'm either missing something embarrassingly simple or the bindings file has disappeared. Any thoughts on which it is? Thanks.

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• replace a whole page useing GreaseMonkey

  - by RYan

  is there a way to replace a whole web page using GreaseMonkey? basically a redirection but the address bar still shows the original address. i want the original address to show, but i want to load a modified web page from my hard drive without anyone knowing. thanks

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• Create a System-tray styled box in Winforms (C#)

  - by SomeoneD

  I've been hunting about for some resources on this, and I can't find any, so I'll bring in here. I want to make a window similar in style to the quick launch box which you see when you open the quick launch bar: Sadly, I can't find any resources on this; can you help me out?

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• MYSQL query to get all entries with specific time, from PHP?

  - by meds

  I'm trying to query a mysql table which places its date in the following format: yyyy-mm-dd hh:mm:ss So it's date and time, and that's all in a single field. Now from php I want to get the time and query the table to only return entries where the date field is less than 24 hours old. I'm having issues with the system because PHPs get time seems to return the values seperately and I'm struggling to figure out how to make it work with mysql queries. This seems fairly simple but I'm quite new to php so sorry if I'm completely missing something..

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• problems importing ttk from tkinter in python 2.7

  - by Benjimin Boyce

  I'm working with an example file in a tutorial that asks me to first do two imports: from tkinter import * from tkinter import ttk I get an error. I researched a bit and found that in python 2.7.x I need to capitalize the 't'in tkinter, so I change to: from Tkinter import * from Tkinter import ttk. the first line no longer gives and error, but I still get error: ImportError: cannot import name ttk. I have researched this issue on this site and other places, and cannot seem to understand what this ttk is. I'm further confused by the fact that, when I go to the python interpreter, and I type "help()", then "modules", and then "ttk" it seems to know what it is, and gives me a lot of description, for example: "DESCRIPTION This module provides classes to allow using Tk themed widget set." -however, python won't let me import it.

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• If XmlException.SourceUri is read-only, what good is it?

  - by East of Nowhere

  I have a couple places in my code where it throwing a new System.Xml.XmlException seems appropriate. I could just do throw new XmlException("Your XML sucks go fix it then try again."); But I think it's better to take advantage whenever possible of members particular to the exception class (otherwise ya might as well throw a plain ol' Exception every time). SourceUri and LineNumber would be helpful, but they only have get methods, there's no way I can assign a value to them! There's only 3 constructor overloads and none of them have parameters for those members either; I can only initialize Message, nothing else. There has got to be some way to populate those data members with values, otherwise why does XmlException bother with them? I suppose I could make a new class that inherits XmlException and write a new constructor that initializes SourceUri etc. but still, there must be a way to just use XmlException. Right?

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• Limit to area that receives touch events

  - by Typeoneerror

  Is there's a bounding box on an application that receives touch events? I created a few sample round rect buttons and placed them in different places in my view. The ones in the center of the view receive touch events (and show the highlighted blue color) but if I place a button near the edges of the view, only parts of them are clickable in the simulator. Is this because of Apples style guidelines? I placed a button exactly where a UITabNavigationItem would appear and only the bottom half of it is clickable.

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• Multiple TinyMCE editors, but only one toolbar?

  - by littlejim84

  Hello there. I've looked around the forum, but cannot seem to find a definite answer to this problem... I'm using jQuery and TinyMCE on our website. I've gone through the docs of TinyMCE, but am still getting lost I'm afraid. We're doing an interface that requires edit-in-place in multiple places in the page. The only thing is, each of these will have all the editing choices from TinyMCE in one toolbar at the top. So, to recap it, it's multiple editors (that each have no toolbars of their own, just a place to edit or select the text) and only one toolbar at the top of the page to control whichever textbox is active at the time. How could this be achieved? Is it even possible? Any help, any push in the right direction, any hints/tips/knowledge at all on this problem would be a great, great help. Thanks, James

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• why this left join query failed to load all the data in left table ?

  - by lzyy

  users table +-----+-----------+ | id | username | +-----+-----------+ | 1 | tom | | 2 | jelly | | 3 | foo | | 4 | bar | +-----+-----------+ groups table +----+---------+-----------------------------+ | id | user_id | title | +----+---------+-----------------------------+ | 2 | 1 | title 1 | | 4 | 1 | title 2 | +----+---------+-----------------------------+ the query SELECT users.username,users.id,count(groups.title) as group_count FROM users LEFT JOIN groups ON users.id = groups.user_id result +----------+----+-------------+ | username | id | group_count | +----------+----+-------------+ | tom | 1 | 2 | +----------+----+-------------+ where is the rest users' info? the result is the same as inner join , shouldn't left join return all left table's data? PS:I'm using mysql

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• enabling design view in VS 2010

  - by Morano88

  Does anyone know where can I enable the bar that let me switch between different views (Design,split,..) in Visual Studio 2010 ? I can't find it and it is not enables by default

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