gmane.comp.python.pyobjc.devel

Re: Noob problem: My First PyObjC app

Frederik De Bleser — 2008-11-25T18:40:01

After some more digging, I found out that XCode munges the original file hierarchy of your libraries. If you look inside Twite.app/ Contents/Resources, you'll see that scanner.py is in the root folder, although it should be inside of the simplejson folder. Here's the solution: 1. Download a new simplejson version from http://pypi.python.org/pypi/simplejson , and replace the old copy. Also, make sure there are no simplejson.py files in the root of your project. 2. Delete the folder reference to simplejson in your XCode project, and do a Resources > Right click > add existing files... > [ your new simplejson folder] > Create folder references. This last step is very important, and makes sure the package hierarchy is maintained. 3. Somewhere in your project was a reference to Scanner, with a capital 'S'. Replace that with a lowercase 's'. 3. Do a clean build of your project, so no extraneous simplejson.py files clutter up the system. Here's a version that includes the above changes: http://www.megaupload.com/?d=FOPDBQVI Kind regards, Frederik ------------------------------------------------------------------------- This SF.Net email is sponsored by the Moblin Your Move Developer's challenge Build the coolest Linux based applications with Moblin SDK & win great prizes Grand prize is a trip for two to an Open Source event anywhere in the world http://moblin-contest.org/redirect.php?banner_id=100&url=/

Noob problem: My First PyObjC app

Alejandro Novo — 2008-11-25T18:17:49

------------------------------------------------------------------------- This SF.Net email is sponsored by the Moblin Your Move Developer's challenge Build the coolest Linux based applications with Moblin SDK & win great prizes Grand prize is a trip for two to an Open Source event anywhere in the world http://moblin-contest.org/redirect.php?banner_id=100&url=/_______________________________________________ Pyobjc-dev mailing list Pyobjc-dev< at >lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/pyobjc-dev

Re: Compiling PyObjC 2.0 trunk on 10.4

Ronald Oussoren — 2008-11-19T07:08:41

Re: Compiling PyObjC 2.0 trunk on 10.4

Luc Heinrich — 2008-11-18T21:15:21

So, I've made some progress on my own. Manually generating the metadata for the ExceptionHandling framework (for example) in a PyObjC.bridgesupport file which I put in pyobjc- framework-ExceptionHandling/Lib/ExceptionHandling allows the tests to pass. Installing this and then using it works fine but ONLY with alias builds (py2app -A). Using a bundled build fails with the same error than without the bridgesupport file. So now what ? :)

Compiling PyObjC 2.0 trunk on 10.4

Luc Heinrich — 2008-11-12T20:17:48

Greetings, The PyObjC application I'm working on has to run on 10.4 and 10.5, which currently forces me to use PyObjC 1.4 on 10.4 to build the app, which recently started to cause some very weird performance issues so I would *really* like to use PyObjC 2 now. I'm trying to build the latest sources from trunk on 10.4 and I get errors with pyobjc-framework-Cocoa because: - NSUInteger does not exist on 10.4. - _CoreFoundation_CFBinaryHeap.m defines an NSObject category with no name, which gcc does not seem to like. Locally fixing these problems allows me to build pyobjc-framework- Cocoa, all the other pyobjc-framework that I want to use building just fine. But then I'm having the incomplete bridgesupport files problem. For example, this wouldn't work: from ExceptionHandling import NSLogAndHandleEveryExceptionMask So I try to regenerate the ExceptionHandling framework bridgesupport file using gen_bridge_metadata but I'm not sure what to do with the result. What should I do to be able to have a compilable and running PyObC 2 on 10.4 at this point?

Re: proxy for a number behaving strangely

Paul Thomas — 2008-10-25T21:15:17

Apologies, I found the problem in a different object in the same dictionary that wasn't ObjC derived On 25 Oct 2008, at 21:57, Paul Thomas wrote: ------------------------------------------------------------------------- This SF.Net email is sponsored by the Moblin Your Move Developer's challenge Build the coolest Linux based applications with Moblin SDK & win great prizes Grand prize is a trip for two to an Open Source event anywhere in the world http://moblin-contest.org/redirect.php?banner_id=100&url=/

proxy for a number behaving strangely

Paul Thomas — 2008-10-25T20:57:29

I'm sending a dictionary from Python to an ObjC method and one of the values is a number. Trouble is, I keep getting this error: ValueError: NSInvalidArgumentException - Class OC_PythonObject: no such selector: isNSString__ The following are trimmed down from the real code and I can't get simple examples to fail the way my code does. This implies that it's a problem in my code of course, but I'm hoping against hope that someone has seen just this error before or can at least tell me what the problem might be. The really strange thing (strange to me with my level of understanding) is that I found one case where it does work - and that is passing the index value returned by enumerate(). assume 'v' comes from enumerate(): myobj.sendDictionary_(dict(version=v)) # works x=v myobj.sendDictionary_(dict(version=x)) # works #all these fail... myobj.sendDictionary_(dict(version=v)) myobj.sendDictionary_(dict(version=v+1)) x=v+1 myobj.sendDictionary_(dict(version=x)) myobj.sendDictionary_(dict(version=int(v+1)) myobj.sendDictionary_(dict(version=NSNumber.numberWithInt_(v+1))) I mean, what could the difference be between the proxy objects created in the different cases? Paul. ------------------------------------------------------------------------- This SF.Net email is sponsored by the Moblin Your Move Developer's challenge Build the coolest Linux based applications with Moblin SDK & win great prizes Grand prize is a trip for two to an Open Source event anywhere in the world http://moblin-contest.org/redirect.php?banner_id=100&url=/

NSProgressIndicator ignores incrementBy when calledusing performSelectorOnMainThread_withObject_waitUntilDone_

Johannes Scholz — 2008-10-25T16:46:26

I am trying to advance an NSProgressIndicator from a thread, therefor i am using performSelectorOnMainThread_withObject_waitUntilDone_ to have the incrementBy call done from the main thread. However while just calling progress_indicator.incrementBy_(some_value) works just as expected, progress_indicator. performSelectorOnMainThread_withObject_waitUntilDone_("incrementBy:", some_value, True) just does not seem to do anything. See the code below for an simple example. from Foundation import * import objc class controller(NSObject): progress_indicator = objc.IBOutlet() < at >objc.IBAction def go_(self, sender): # WORKS self.performSelectorOnMainThread_withObject_waitUntilDone_("test:", 25, True) # DOES NOT SEEM TO WORK self .progress_indicator .performSelectorOnMainThread_withObject_waitUntilDone_("incrementBy:", 25.0, True) def test_(self, x): print 'yaye', x What am I doing wrong? Regards, Johannes ------------------------------------------------------------------------- This SF.Net email is sponsored by the Moblin Your Move Developer's challenge Build the coolest Linux based applications with Moblin SDK & win great prizes Grand prize is a trip for two to an Open Source event anywhere in the world http://moblin-contest.org/redirect.php?banner_id=100&url=/

PyObjC on Leopard

Dav Clark — 2008-10-18T23:44:45

Hi there, I spent quite a bit of time scouring the internet for answers, and there don't seem to be any... so now I put these to you: 1) The pyobjc website says Leopard users should install from svn trunk. Why? What (bad) happens if I use pyobjc 1.4 + python 2.5.2 (Framework, non-System) + Leopard (OSX 10.5.x)? 2) Is there anything that's simply an amazing improvement in 2.0 (for existing code that already works with 1.4)? 3) How the heck to I build 2.x PyObjC from the trunk. I've found threads where other's asked about this, but they never ended in an answer... FWIW - I'm interested in getting pyobjc into the Enthought Python Distribution - which requires compatibility with 10.4. So another angle on the above would be 4) Could I build pyobjc (mpkg or egg or what have you) that would work on both 10.4 and 10.5? Thanks! Dav ------------------------------------------------------------------------- This SF.Net email is sponsored by the Moblin Your Move Developer's challenge Build the coolest Linux based applications with Moblin SDK & win great prizes Grand prize is a trip for two to an Open Source event anywhere in the world http://moblin-contest.org/redirect.php?banner_id=100&url=/

Method Swizzling - class_getInstanceMethod

Saptarshi Guha — 2008-10-14T05:54:14

Hello, How exactly do I use this function? For example, This is a plugin in Python(Leopard 10.5.5), the principal class is Voo(see end of email). I load the bundle and instantiate it like this NSBundle *bun=[NSBundle bundleWithPath:< at >"/Users/yanger/toperuse/PyRu/ example2/dist/gigo.plugin"]; Class currPrincipalClass = [bun principalClass]; id ins=[[currPrincipalClass alloc] init]; (i'm basing this of PyRu) Voo is trying to swizzle goody method I added to PythonStuff. However, a) load is not run b) : 'module' object has no attribute 'class_getInstanceMethod' Any ideas what I should do? Thanks Saptarshi ==Python Bundle(gigo.py)== from Foundation import * from AppKit import * from Foundation import * import objc class PythonStuff(objc.Category(PythonStuff)): def mygoody(self): NSLog("Alpha betea") class Voo(NSObject): < at >classmethod def load(cls): NSLog("A") def init(self): super(Voo, self).init() NSLog("B:") originalMethod = objc.class_getInstanceMethod(objc.lookUpClass(u"PythonStuff"), "goody") replacedMethod = objc.class_getInstanceMethod(objc.lookUpClass(u"PythonStuff"), "mygoody") objc.method_exchangeImplementations(originalMethod, replacedMethod) NSLog("C:") return self ==setup.py== from distutils.core import setup import py2app plist = dict(NSPrincipalClass='Voo') setup( plugin = ['gigo.py'], options=dict(py2app=dict(extension='.plugin', plist=plist)) ) ------------------------------------------------------------------------- This SF.Net email is sponsored by the Moblin Your Move Developer's challenge Build the coolest Linux based applications with Moblin SDK & win great prizes Grand prize is a trip for two to an Open Source event anywhere in the world http://moblin-contest.org/redirect.php?banner_id=100&url=/

Re: Import PyObjC Class/Module into Objective-C

Barry Wark — 2008-10-14T03:36:21

Mike, The only way I know how to instantiate a class defined in python from within Objective-C land is to compile the python code into a loadable bundle using py2app and then load that bundle from within Objective-C using [NSBundle load]. I've attached an example setup.py that will build a loadable bundle from a python file, 'example.py'. Barry On Mon, Oct 13, 2008 at 8:17 PM, Mike Stathopoulos hotmail.com> wrote: ------------------------------------------------------------------------- This SF.Net email is sponsored by the Moblin Your Move Developer's challenge Build the coolest Linux based applications with Moblin SDK & win great prizes Grand prize is a trip for two to an Open Source event anywhere in the world http://moblin-contest.org/redirect.php?banner_id=100&url=/_______________________________________________ Pyobjc-dev mailing list Pyobjc-dev< at >lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/pyobjc-dev

Import PyObjC Class/Module into Objective-C

Mike Stathopoulos — 2008-10-14T03:17:54

Hi, Documentation on PyObjC is pretty sparse. I want to instantiate PyObjC classes in Objective-C objects. Any docs or example code would be much appreciated. If there's no documentation floating around out there, which header files in the framework should I get more aquatinted with? Many thanks, Mike ------------------------------------------------------------------------- This SF.Net email is sponsored by the Moblin Your Move Developer's challenge Build the coolest Linux based applications with Moblin SDK & win great prizes Grand prize is a trip for two to an Open Source event anywhere in the world http://moblin-contest.org/redirect.php?banner_id=100&url=/

Re: Memory leak, but only in a plug-in?

Barry Wark — 2008-10-14T01:02:53

done: https://sourceforge.net/tracker/index.php?func=detail&aid=1982104&group_id=14534&atid=114534 Please email me if anyone has trouble downloading or building/running the demo project. On Sat, Oct 11, 2008 at 3:48 PM, Steve Steiner mac.com> wrote: ------------------------------------------------------------------------- This SF.Net email is sponsored by the Moblin Your Move Developer's challenge Build the coolest Linux based applications with Moblin SDK & win great prizes Grand prize is a trip for two to an Open Source event anywhere in the world http://moblin-contest.org/redirect.php?banner_id=100&url=/

Re: class vs. instance attributes for IBOutlets

Greg Ewing — 2008-10-13T02:13:16

I think the IBOutlet is just a marker indicating that the attribute in question is an outlet, and it doesn't hold any state -- in which case sharing it between instances is fine.

Re: class vs. instance attributes for IBOutlets

Joe Strout — 2008-10-12T23:13:52

This is only true for immutable properties. Try this: >>> class Foo: ... list = [] ... >>> a = Foo() >>> b = Foo() >>> a.list [] >>> a.list.append(1) >>> a.list [1] >>> b.list [1] And of course a.list.append is exactly what I was doing with 'toDoList' in my real app. But whether this applies to IBOutlets, I have no idea -- I don't understand what they are or how they work. This was my question. My experimentation shows that it does not, but it DOES detect them if they're set up in the init() method as I showed on my last email. Best, - Joe -- Joe Strout joe< at >strout.net The candidates answer the top 14 science questions facing America: http://www.sciencedebate2008.com/www/index.php?id=40 ------------------------------------------------------------------------- This SF.Net email is sponsored by the Moblin Your Move Developer's challenge Build the coolest Linux based applications with Moblin SDK & win great prizes Grand prize is a trip for two to an Open Source event anywhere in the world http://moblin-contest.org/redirect.php?banner_id=100&url=/

Re: class vs. instance attributes for IBOutlets

Will Larson — 2008-10-12T15:17:10

Joe, In order to access the class variable, you'd need to be accessing ClassNa property me.instead of 'self.property'. I this this brief console session help clarify the difference: >>> class Person(object): ... name = "Tim" ... age = 25 ... >>> x = Person() >>> x <__main__.Person object at 0x80870> >>> x.name 'Tim' >>> x.name = "Will" >>> x <__main__.Person object at 0x80870> >>> x.name 'Will' >>> Person.name 'Tim' ``x`` starts out with the class instance for ``name``, but once you attempt to modify it via ``x.name`` it masks the class property with an instance property. This means that you can safely create multiple instances of one class that appear to modify class variables without causing any trouble. (To actually modify the class property, you'd need to do ``Person.x = 'Jack'``.) I'm curious if InterfaceBuilder can actually detect IBOutlets which are initialized inside the __init__ method (not sure), if not, that might explain why we've adopted a slightly less Pythonic approach. Personally, I'd continue declaring properties as class properties until you run into a situation where doing so is strongly undesirable. In the long run, it's mostly a stylistic element. -Will On Oct 12, 2008, at 10:12 AM, Joe Strout wrote: ------------------------------------------------------------------------- This SF.Net email is sponsored by the Moblin Your Move Developer's challenge Build the coolest Linux based applications with Moblin SDK & win great prizes Grand prize is a trip for two to an Open Source event anywhere in the world http://moblin-contest.org/redirect.php?banner_id=100&url=/

class vs. instance attributes for IBOutlets

Joe Strout — 2008-10-12T14:12:20

I'm re-learning Python, and learning Cocoa and PyObjC all at the same time. So maybe this is silly question: The examples I've seen have the IBOutlets (and often data too) defined at the class level, like so: class ToDoListAppDelegate(NSObject): toDoTableView = objc.IBOutlet() newItemField = objc.IBOutlet() toDoList = [] But it occurred to me last night that this would be a problem in an NSObject class that might have more than one instance -- wouldn't apply to the app delegate, of course, but it could apply to a window controller. So I moved the toDoList (which is a mutable type) to the init function. Then, on a lark, I found I could move the IBOutlets there too, so it looks like this: class ToDoListAppDelegate(NSObject): def init(self): NSLog(u"init") self.toDoTableView = objc.IBOutlet() self.newItemField = objc.IBOutlet() self = super(ToDoListAppDelegate, self).init() if self is not None: self.toDoList = [] return self So here's my question: is this necessary for IBOutlets (in a non- singleton class of course)? Or is it not necessary, perhaps because this is an immutable type? And what's the standard best practice for these things? Thanks, - Joe ------------------------------------------------------------------------- This SF.Net email is sponsored by the Moblin Your Move Developer's challenge Build the coolest Linux based applications with Moblin SDK & win great prizes Grand prize is a trip for two to an Open Source event anywhere in the world http://moblin-contest.org/redirect.php?banner_id=100&url=/

Re: Memory leak, but only in a plug-in?

Barry Wark — 2008-10-12T05:52:20

Yes. It'll likely have to wait until I get into work on Monday morning. cheers, Barry On Sat, Oct 11, 2008 at 3:48 PM, Steve Steiner mac.com> wrote: ------------------------------------------------------------------------- This SF.Net email is sponsored by the Moblin Your Move Developer's challenge Build the coolest Linux based applications with Moblin SDK & win great prizes Grand prize is a trip for two to an Open Source event anywhere in the world http://moblin-contest.org/redirect.php?banner_id=100&url=/

Fwd: Memory leak, but only in a plug-in?

s s — 2008-10-12T00:22:29

Barry, Could you please attach the new, improved version of the demo to the original bug report so any interested party can quickly see the problem. The first compilable one you sent me shows the problem the best, I think. Instructions for using Instrument to show the problem might be handy too if you've got time. Thanks, S On Oct 11, 2008, at 5:17 PM, Barry Wark wrote: ------------------------------------------------------------------------- This SF.Net email is sponsored by the Moblin Your Move Developer's challenge Build the coolest Linux based applications with Moblin SDK & win great prizes Grand prize is a trip for two to an Open Source event anywhere in the world http://moblin-contest.org/redirect.php?banner_id=100&url=/

Re: Memory leak, but only in a plug-in?

Barry Wark — 2008-10-11T21:17:18

Just to clarify the issue: this leak is present if the plugin is written in python (and compiled to a loadable bundle using py2app) and loaded into an Objective-C app. The leak does not occur if the plugin is loaded into a Python app. This issue was first described in bug #1982104 (http://sourceforge.net/tracker/index.php?func=detail&aid=1982104&group_id=14534&atid=114534). ------------------------------------------------------------------------- This SF.Net email is sponsored by the Moblin Your Move Developer's challenge Build the coolest Linux based applications with Moblin SDK & win great prizes Grand prize is a trip for two to an Open Source event anywhere in the world http://moblin-contest.org/redirect.php?banner_id=100&url=/

Fwd: Memory leak, but only in a plug-in?

s s — 2008-10-11T13:27:35

Hi! Barry Wark and I have been trying to track down a problem in both of our apps. An NSDictionary returned from a plug-in leaks CFDictionary objects in exactly the same number as the number of returned NSDictionary's -- same number of CFDictionary objects, and also allocations for each item in the dictionary flagged as 'keys' and 'object storage.' This happens regardless of where the dictionary's allocated. Allocating in the main ObjC calling program and passed into the plug- in or created in the plug-in itself, same behaviour. Anybody have a clue why this is? We've proven it pretty conclusively and clearly and have a working demonstration that I can put up if anyone's interested. Thanks, S aka Steve Steiner ------------------------------------------------------------------------- This SF.Net email is sponsored by the Moblin Your Move Developer's challenge Build the coolest Linux based applications with Moblin SDK & win great prizes Grand prize is a trip for two to an Open Source event anywhere in the world http://moblin-contest.org/redirect.php?banner_id=100&url=/