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• How to Disassemble an object creation in Python?

  - by systempuntoout

  Having a class like this: class Spam(object): def __init__(self, name=''): self.name = name eggs = Spam('systempuntoout') using dis, is it possible to see how an instance of a class and the respective hex Identity are created?

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• Google App Engine with local Django 1.1 gets Intermittent Failures

  - by Jon Watte

  I'm using the Windows Launcher development environment for Google App Engine. I have downloaded Django 1.1.2 source, and un-tarrred the "django" subdirectory to live within my application directory (a peer of app.yaml) At the top of each .py source file, I do this: import settings import os os.environ["DJANGO_SETTINGS_MODULE"] = 'settings' In my file settings.py (which lives at the root of the app directory, as well), I do this: DEBUG = True TEMPLATE_DIRS = ('html') INSTALLED_APPS = ('filters') import os os.environ["DJANGO_SETTINGS_MODULE"] = 'settings' from google.appengine.dist import use_library use_library('django', '1.1') from django.template import loader Yes, this looks a bit like overkill, doesn't it? I only use django.template. I don't explicitly use any other part of django. However, intermittently I get one of two errors: 1) Django complains that DJANGO_SETTINGS_MODULE is not defined. 2) Django complains that common.html (a template I'm extending in other templates) doesn't exist. 95% of the time, these errors are not encountered, and they randomly just start happening. Once in that state, the local server seems "wedged" and re-booting it generally fixes it. What's causing this to happen, and what can I do about it? How can I even debug it? Here is the traceback from the error: Traceback (most recent call last): File "C:\code\kwbudget\edit_budget.py", line 34, in get self.response.out.write(t.render(template.Context(values))) File "C:\code\kwbudget\django\template\__init__.py", line 165, in render return self.nodelist.render(context) File "C:\code\kwbudget\django\template\__init__.py", line 784, in render bits.append(self.render_node(node, context)) File "C:\code\kwbudget\django\template\__init__.py", line 797, in render_node return node.render(context) File "C:\code\kwbudget\django\template\loader_tags.py", line 71, in render compiled_parent = self.get_parent(context) File "C:\code\kwbudget\django\template\loader_tags.py", line 66, in get_parent raise TemplateSyntaxError, "Template %r cannot be extended, because it doesn't exist" % parent TemplateSyntaxError: Template u'common.html' cannot be extended, because it doesn't exist And edit_budget.py starts with exactly the lines that I included up top. All templates live in a directory named "html" in my root directory, and "html/common.html" exists. I know the template engine finds them, because I start out with "html/edit_budget.html" which extends common.html. It looks as if the settings module somehow isn't applied (because that's what adds html to the search path for templates).

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• CSV File Content Display Issue

  - by Pankaj Khurana

  Hi, I want to retrieve contents from a csv file for that i am using following code: <?php $fo = fopen("record.csv", "rb+"); while(!feof($fo)) { $contents[] = fgetcsv($fo,0,';'); } print_r($contents); fclose($fo); ?> But my records are displayed in the following format: ????††???????†††??†††††????"Search Transactions Results" ††††??†???????††††?††††††??? ???????????? ?????????????? ?????????? My csv file format: "Search Transactions Results" "Transaction ID","Reference Transaction ID","Date","Type","Subject","Item Number","Item Name","Invoice ID","Name","Email","Shipping Name","Shipping Address Line 1","Shipping Address Line 2","Shipping Address City","Shipping State/Province","Shipping Zip/Postal Code","Shipping Address Country","Shipping Method","Address Status","Contact Phone Number","Gross Amount","Receipt ID","Custom Field","Option 1 Name","Option 1 Value","Option 2 Name","Option 2 Value","Note","Auction Site","Auction User ID","Item URL","Auction Closing Date","Insurance Amount","Currency","Fees","Net Amount","Shipping & Handling Amount","Sales Tax Amount","To Email","Time","Time Zone" "1T","",5/5/2010 2:10:44 PM,"Payment Processed","CFP Self Study Kit","1","CFP Self Study Kit","","User1","[email protected]","","","","","","","","","N","","68.18","R1","","","","","","","","","",,"","USD","-2.62","65.56","0","0","[email protected]","01:40","Asia/Calcutta" "2T","",5/19/2010 4:04:08 PM,"Payment Processed","CFP Self Study Kit","1","CFP Self Study Kit","","User2","[email protected]","","","","","","","","","N","","68.18","R2","","","","","","","","","",,"","USD","-2.62","65.56","0","0","[email protected]","03:34","Asia/Calcutta" "3T","1RT",5/19/2010 5:28:45 PM,"Currency Conversion Completed","","","",""," ","","","","","","","","","","N","","17492.6","","","","","","","","","","",,"","INR","0","17492.6","0","0","","04:58","Asia/Calcutta" "4T","2RT",5/19/2010 5:28:45 PM,"Currency Conversion Completed","","","",""," ","","","","","","","","","","N","","-393.36","","","","","","","","","","",,"","USD","0","-393.36","0","0","","04:58","Asia/Calcutta" "5T","",5/19/2010 5:28:45 PM,"Transfer to Bank Initiated","P1006","","P1006",""," ","","","","","","","","","","N","","-17492.6","","","","","","","","","","",,"","INR","0","-17492.6","0","0","","04:58","Asia/Calcutta" "6T","",5/20/2010 5:38:02 PM,"Transfer to Bank Completed","P1006","","P1006",""," ","","","","","","","","","","N","","-17492.6","","","","","","","","","","",,"","INR","0","-17492.6","0","0","","05:08","Asia/Calcutta" "7T","",5/21/2010 12:32:37 PM,"Payment Processed","FP - LVC Plus","","FP - LVC Plus","","User3","[email protected]","User3","NEW DELHI","BEHIND KARNATAKA BANK LD","SOUTH","NEW DELHI","110023","IN","","N","","283.96","","","","","","","","","","",,"","USD","-9.95","274.01","0","0","[email protected]","00:02","Asia/Calcutta" "8T","",5/25/2010 4:40:48 PM,"Transfer to Bank Initiated","P1006","","P1006",""," ","","","","","","","","","","N","","-12569.85","","","","","","","","","","",,"","INR","0","-12569.85","0","0","","04:10","Asia/Calcutta" "9T","3RT",5/25/2010 4:40:48 PM,"Currency Conversion Completed","","","",""," ","","","","","","","","","","N","","-274.01","","","","","","","","","","",,"","USD","0","-274.01","0","0","","04:10","Asia/Calcutta" "10T","4RT",5/25/2010 4:40:48 PM,"Currency Conversion Completed","","","",""," ","","","","","","","","","","N","","12569.85","","","","","","","","","","",,"","INR","0","12569.85","0","0","","04:10","Asia/Calcutta" "11T","",5/26/2010 4:57:39 PM,"Transfer to Bank Completed","P1006","","P1006",""," ","","","","","","","","","","N","","-12569.85","","","","","","","","","","",,"","INR","0","-12569.85","0","0","","04:27","Asia/Calcutta" "Total","-247.05 USD","-15.19","-262.24" "Total","0.00 INR","0.00","0.00" I want to retrieve the records where "Type"="Payment Processed". I want to retrieve content in a key value format that is for e.g. Transaction ID-1T as i have to store this values in a database but display is not proper. I am unable to find out the reason for the same please help me on this. Thanks

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• button item lost when hide and unhide toolbar

  - by RAGOpoR

  i dont know, why the button are disappear after the toolbar set to hide and unhide. how can i fix it? and i setup my button at this method -(void)viewDidAppear:(BOOL)animated this code use for hide toolbar [self.navigationController setNavigationBarHidden:YES animated:YES]; [[UIApplication sharedApplication] setStatusBarHidden:YES animated:YES]; [self.navigationController setToolbarHidden:YES animated:YES];

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• Exception Handling in google app engine

  - by Rahul99

  i am raising exception using if UserId == '' and Password == '': raise Exception.MyException , "wrong userId or password" but i want print the error message on same page class MyException(Exception): def __init__(self,msg): Exception.__init__(self,msg)

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• About to migrate :string but I'm thinking :text might be better. Performance/Purpose?

  - by Sam

  class CreateScrapes < ActiveRecord::Migration def self.up create_table :scrapes do |t| t.text :saved_characters t.text :sanitized_characters t.string :href t.timestamps end end def self.down drop_table :scrapes end end I'm about to rake db:migrate and I'm think about the attribute type if I should be using text or string. Since saved_characters and sanitized_characters will be arrays with thousands of unicode values, its basically comma delimited data, I'm not sure if `:text' is really the right way to go here. What would you do?

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• Should we remove Child added by addChild method before going to next scene in cocos2d ?

  - by srikanth rongali

  Hi, I am writing a small game in cocos2d. I am adding child [ self addChild: sprite1]; Should I remove these before going to next scene by using [self removeChild: sprite1 cleanup:YES]; Does it increase the performance in device ? Thank You.

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• View doesn't respond to touches after shake

  - by Mike Rychev

  In my app I've implemented a shake event and it shows a UIImageView. When the UIImageView is shown, I hide the Nav Bar with: [self.navigationController setNavigationBarHidden:YES animated:NO]; And after that I want to bring it back when user touches the screen: - (void)touchesEnded:(NSSet *)touches withEvent:(UIEvent *)event { [[self navigationController] setNavigationBarHidden:NO animated:YES]; } But it doesn't work! Like my view doesn't respond to touches. Thanks in advance!

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• What's the point of this in objective-c

  - by Mk12

  SomeObject *temp = [[SomeObject alloc] init] self.theObject = temp; [temp release]; Why is it always done that way? Why not self.theObject = [[SomeObject alloc] init];

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• iPhone Gps logging inaccurate

  - by Martijn

  I'm logging gps points during a walk. Below it shows the function that the coordinates are saved each 5 seconds. i Did several tests but i cannot get the right accuracy i want. (When testing the sky is clear also tests in google maps shows me that the gps signal is good). here is the code: -(void)viewDidAppear:(BOOL)animated{ if (self.locationManager == nil){ self.locationManager = [[[CLLocationManager alloc] init] autorelease]; locationManager.delegate = self; // only notify under 100 m accuracy locationManager.distanceFilter = 100.0f; locationManager.desiredAccuracy= kCLLocationAccuracyBest; [locationManager startUpdatingLocation]; } } - start logging [NSTimer scheduledTimerWithTimeInterval:5 target:self selector:@selector(getData) userInfo:nil repeats:YES]; </code> <code> -(void)getData{ int distance; // re-use location. if ([ [NSString stringWithFormat:@"%1.2f",previousLat] isEqualToString:@"0.00"]){ // if previous location is not available, do nothing distance = 0; }else{ CLLocation *loc1 = [[CLLocation alloc] initWithLatitude:previousLat longitude:previousLong]; CLLocation *loc2 = [[CLLocation alloc] initWithLatitude:latGlobal longitude:longGlobal]; distance = [loc1 getDistanceFrom: loc2]; } // overwrite latGlobal with new variable previousLat = latGlobal; previousLong = longGlobal; // store location and save data to database // this part goes ok } - (void)locationManager:(CLLocationManager *)manager didUpdateToLocation:(CLLocation *)newLocation fromLocation:(CLLocation *)oldLocation { // track the time to get a new gps result (for gps indicator orb) lastPointTimestamp = [newLocation.timestamp copy]; // test that the horizontal accuracy does not indicate an invalid measurement if (newLocation.horizontalAccuracy < 0) return; // test the age of the location measurement to determine if the measurement is cached // don't rely on cached measurements NSTimeInterval locationAge = -[newLocation.timestamp timeIntervalSinceNow]; if (locationAge > 5.0) return; latGlobal = fabs(newLocation.coordinate.latitude); longGlobal= fabs(newLocation.coordinate.longitude); } I have taken a screenshot of the plot results (the walk takes 30 minutes) and an example of what i'am trying to acomplish: http://www.flickr.com/photos/21258341@N07/4623969014/ i really hope someone can put me in the right direction.

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• Python Pickle: what can cause stack index out of range error?

  - by Rosarch

  I'm getting this error: File "C:\Python26\lib\pickle.py", line 1374, in loads return Unpickler(file).load() File "C:\Python26\lib\pickle.py", line 858, in load dispatch[key](self) File "C:\Python26\lib\pickle.py", line 1075, in load_obj k = self.marker() File "C:\Python26\lib\pickle.py", line 874, in marker while stack[k] is not mark: k = k-1 IndexError: list index out of range Why could this be happening?

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• Rails migration won't run, no error thrown

  - by kouak

  Here's a simple migration I'd like to run : class AddTimeOfRevisionToBrandWikis < ActiveRecord::Migration def self.up add_column :brand_wikis, :time_of_revision, :datetime end def self.down remove_column :brand_wikis, :time_of_revision end end Here's what I get when I try to run it : $ rake db:migrate (in /Users/kouak/Documents/workspace/wtb) You have 1 pending migrations: 20100404115341 AddTimeOfRevisionToBrandWikis Run "rake db:migrate" to update your database then try again. What's wrong with rake db:migrate ?

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• Javascript scope problem with object and setTimeout

  - by Shabbyrobe

  I'm trying to make a jQuery plugin that executes a method on a timer. I'd like it to work on multiple elements on a page independently. I've reached a point where the timer executes for each element, but the method called in the setTimeout seems to only know about the last instance of the plugin. I know I'm doing something fundamentally stupid here, but I'm danged if I know what. I know stuff like this has been asked 8 million times on here before, but I've not managed to find an answer that relates to my specific problem. Here's a script that demonstrates the structure of what I'm doing. <html> <head> <script type="text/javascript" src="assets/jquery.min.js"></script> <script type="text/javascript"> var crap = 0; (function($) { jQuery.fn.pants = function(options) { var trousers = { id: null, current: 0, waitTimeMs: 1000, begin: function() { var d = new Date(); this.id = crap++; console.log(this.id); // do a bunch of stuff window.setTimeout(function(self) {return function() {self.next();}}(this), this.waitTimeMs); }, next: function() { this.current ++; console.log(this.id); window.setTimeout(function(self) {return function() {self.next();}}(this), this.waitTimeMs); }, }; options = options || {}; $.extend(trousers, options); this.each(function(index, element) { trousers.begin(); }); return this; }; } )(jQuery); jQuery(document).ready(function() { jQuery("div.wahey").pants(); }); </script> </head> <body> <div class="wahey"></div> <div class="wahey"></div> </body> </html> The output I get is this: 0 1 1 1 1 1 The output I expect to get is this: 0 1 0 1 0 1

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• Storing an subtitle on an annotation with NSUserDefualts

  - by Krismutt

  Hey everybody! Basically: what i try to do is to save the street address of an annotation so that when I quit the application and launch it again the street address still will be there...see the following code: SavePosition.m -(NSString *)subtitle{ if (!subtitle) { return @"Ingen gata i närheten"; } else { return subtitle; } } -(NSString *)title{ return @"Sparad Position"; } -(id)initWithCoordinate:(CLLocationCoordinate2D) coor{ self.coordinate=coor; NSLog(@"%f,%f",coor.latitude,coor.longitude); return self; } - (void)setCoordinate:(CLLocationCoordinate2D)koor { MKReverseGeocoder *geocoder = [[[MKReverseGeocoder alloc] initWithCoordinate:koor] autorelease]; geocoder.delegate = self; coordinate = koor; [geocoder start]; } - (void)reverseGeocoder:(MKReverseGeocoder *)geocoder didFailWithError:(NSError *)error { NSLog(@"fail %@", error); } - (void)reverseGeocoder:(MKReverseGeocoder *)geocoder didFindPlacemark:(MKPlacemark *)placemark { self.subtitle = [placemark.addressDictionary valueForKey:@"Street"]; } -(void)applicationWillTerminate:(UIApplication *)application { NSUserDefaults *userDef = [NSUserDefaults standardUserDefaults]; [userDef setValue:subtitle forKey:@"SavedAddress"]; [userDef setBool:YES forKey:@"Street"]; [userDef synchronize]; } @end mainViewController.m -(void)viewDidLoad { [super viewDidLoad]; NSUserDefaults *userDef = [NSUserDefaults standardUserDefaults]; if ([userDef boolForKey:@"sparadKoordinat-existerar"]) { CLLocationCoordinate2D savedCoordinate; savedCoordinate.latitude = [userDef doubleForKey:@"sparadKoordinat-latitud"]; savedCoordinate.longitude = [userDef doubleForKey:@"sparadKoordinat-longitud"]; SparaPosition *position=[[SparaPosition alloc] initWithCoordinate:savedCoordinate]; [mapView addAnnotation:position]; savedPosition = savedCoordinate; raderaSparad.enabled=YES; skickaMaps.enabled=YES; mStoreLocationButton.enabled=NO; friZoom = NO; NSString *savedAddress = [[NSUserDefaults standardUserDefaults] objectForKey:@"SavedAddress"]; if (savedAddress) { savedAddress.subtitle = [userDef valueForKey:@"Street"]; // what code should I add here? } MKCoordinateRegion region; region.center.latitude = savedCoordinate.latitude; region.center.longitude= savedCoordinate.longitude; MKCoordinateSpan span; span.latitudeDelta = 0.01; span.longitudeDelta = 0.01; region.span = span; region = [mapView regionThatFits:region]; [mapView setRegion:region animated:YES]; [mapView setRegion:region animated:TRUE]; }

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• Make dictionary from list with python

  - by prosseek

  I need to transform a list into dictionary as follows. The odd elements has the key, and even number elements has the value. x = (1,'a',2,'b',3,'c') - {1: 'a', 2: 'b', 3: 'c'} def set(self, val_): i = 0 for val in val_: if i == 0: i = 1 key = val else: i = 0 self.dict[key] = val My solution seems to long, is there a better way to get the same results?

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• Rails - Accessing model class methods from within ActiveRecord model

  - by aaronrussell

  I have a simple standalone model that doesn't inherit from ActiveRecord or anything else, called SmsSender. As the name suggests, it delivers text messages to an SMS gateway. I also have an ActiveRecord model called SmsMessage which has an instance method called deliver: def deliver SmsSender.deliver_message(self) self.update_attributes :status => "Sent" end The above is returning uninitialized constant SmsSender. I'm sure this is dead simple, but how can I access the SmsSender class from within my model?

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• How to limit manytomanyfields on a model ?

  - by Tom

  I would like to check that I get not more than 3 relations set on a manytomanyfield. I tried on the clean method to do this : if self.tags.count()>3: raise ValidationError(_(u'You cannot add more than 3 tags')) But self.tags returns not the current updates... only saved objects. Do you have an idea to access to them ? Thanks

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• Object leak using "retain"

  - by Abhinav

  I have a property defined with retain attribute which I am synthesizing: @property (nonatomic, retain) UISwitch *mySwitch; And inside my loadView I am doing this: self.mySwitch = [[UISwitch alloc] initWithFrame:CGRectMake(0, 0, 40, 20)]; And finally inside my dealloc I am doing this: self.mySwitch = nil; Am I leaking this object (mySwitch) as I have used one alloc? Should I autorelease it while assigning it frame? Please suggest.

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• iPhone - Switch Tab from UIWebView

  - by user269737

  I have a webview and I want to manually switch to another tab during a specific event. The event is arbitray, but I can't figure out hwo to switch teh tab. On my other views, I have the following code: self.tabBarController.selectedViewController = [self.tabBarController.viewControllers objectAtIndex:2]; However, this does not work in my custom UIWebView class. Is there a simple solution to this? Thanks

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• Exporting dates properly formatted on Google Appengine in Python

  - by Chris M

  I think this is right but google appengine seems to get to a certain point and cop-out; Firstly is this code actually right; and secondly is there away to skip the record if it cant output (like an ignore errors and continue)? class TrackerExporter(bulkloader.Exporter): def __init__(self): bulkloader.Exporter.__init__(self, 'SearchRec', [('__key__', lambda key:key.name(), None), ('WebSite', str, None), ('DateStamp', lambda x: datetime.datetime.strptime(x, '%d-%m-%Y').date(), None), ('IP', str, None), ('UserAgent', str, None)]) Thanks

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• UINavigationBar Background Image Problem

  - by tobi

  i have set my navigationbar background with this code in my App delegate: @implementation UINavigationBar (UINavigationBarCategory) - (void)drawRect:(CGRect)rect { UIImage *backgroundImage = [UIImage imageNamed: @"Nav-rightpane.png"]; CGContextDrawImage(UIGraphicsGetCurrentContext(), CGRectMake(0, 0, self.frame.size.width, self.frame.size.height), backgroundImage.CGImage); } @end This works perfect but now i must change the background to the default at UIPopoverController. Any idea for this? Thanks

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• Unit testing MVC.net Redirection

  - by Dan

  How do I Unit Test a MVC redirection? public ActionResult Create(Product product) { _productTask.Save(product); return RedirectToAction("Success"); } public ActionResult Success() { return View(); } Is Ayende's approach still the best way to go, with preview 5: public static void RenderView(this Controller self, string action) { typeof(Controller).GetMethod("RenderView").Invoke(self,new object[] { action} ); } Seems odd to have to do this, especially as the MVC team have said they are writing the framework to be testable.

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• How to return string name of calling method?

  - by keruilin

  Right now my code works as such: def method_a self.method_b ==> 'method_b' end def method_b puts self.name_of_calling_method end def name_of_calling_method if /`(.*)'/.match(caller.first) return $1 else return nil end end Instead of method_b printing 'method_b', how can I print the name of the calling method - 'method_a'?

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• How do I set an ABPeoplePickerNavigationController's prompt?

  - by mverzilli

  This is the code I'm using to call the people picker, but the prompt label text doesn't change: ABPeoplePickerNavigationController *picker = [[ABPeoplePickerNavigationController alloc] init]; picker.peoplePickerDelegate = self; picker.displayedProperties = [NSArray arrayWithObjects: [NSNumber numberWithInt:kABPersonEmailProperty], nil]; picker.navigationItem.prompt = @"Choose a contact to..."; [self presentModalViewController:picker animated:YES];

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• Problem with NSMutableArray

  - by zp26

  Hi, I have a problem with NSMutableArray. In my program i have a lot of variabile "CFSocketRef". i want to save this in NSMutableArray but i can't. Can you help me? Thank and sorry for my english XP My code: CFSocketRef socketAccept; NSMutableArray *arrayIP = [[NSMutableArray alloc] init]; self.socketAccept = CFSocketCreateWithNative(NULL, fd, kCFSocketDataCallBack, AcceptDataCallback, &context); [arrayIP addObject:(id)self.socketAccept];

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