[Pyobjc-dev] objc.BadPrototypeError

[Rob <rob...@gm...>]

(Please tell me if this is the wrong list for this kind of thing)

I am trying to port an application written against the stock python+pyobjc
on Leopard to one on snow leopard, and I've hit and error I can't solve.  I
have a sheet that pops in that allows one to select files, and it does this:

self.panel.beginSheetForDirectory_file_types_modalForWindow_modalDelegate_didEndSelector_contextInfo_(
            os.getcwd(),
            None,
            self.filetypes,
            NSApp().mainWindow(),
            self,
            'openPanelDidEnd:panel:returnCode:contextInfo:',
            0)

the key being the 'openPanelDidEnd:panel:returnCode:contextInfo:' part.

The signature of that method seems to have changed between Leopard and Snow
Leopard, but the decorator in pyobjc doesn't appear updated.  I am guess
this is what is going on because my method defined as:

@PyObjCTools.AppHelper.endSheetMethod
def openPanelDidEnd_panel_returnCode_contextInfo_(self, panel, returnCode,
contextInfo):

(which works fine in Leopard) throws the error:

objc.BadPrototypeError: Python signature doesn't match implied Objective-C
signature for <unbound selector
openPanelDidEnd:panel:returnCode:contextInfo: of desktop_uploaderAppDelegate
at 0x2fb6d70>

I've tried to figure out how to write the signature myself, but I seem to
suck badly at doing so. Nothing I have tried has worked.  I've tried (some
were just googled, some I tired to write myself by looking at the apple
docs):

@objc.signature('v@:^@i^v')
@objc.signature('v16@4:8@12i16i20')
@objc.signature('v@:@i^v')

amongst others, but everything I try just throws
that objc.BadPrototypeError: and crashes the program.

Seems like it should be an easy fix if I could sort out the signature - can
anyone help or point me in the right direction?

cheers,
rob

-- 
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