[Pyobjc-dev] import Quartz in 10.5 Xcode Project headache

[Chris B. <qu...@me...>]

I'm trying to use Quartz in my Xcode template-based PyObjC application  
to do a window shake animation; everything works great in Snow  
Leopard. When I go about testing it on Leopard systems, some bad stuff  
happens at application launch, the dock icon bounces continuously, and  
the console barfs up this nonsense before quieting down and doing  
nothing at all:

_RegisterApplication(), FAILED TO establish the default connection to  
the WindowServer, _CGSDefaultConnection() is NULL.
*** -[NSRecursiveLock unlock]: lock (<NSRecursiveLock: 0x1d66300>  
'(null)') unlocked when not locked
*** Break on _NSLockError() to debug.
NSInternalInconsistencyException - Error (1002) creating CGSWindow

This issue doesn't occur if the import occurs after  
AppHelper.runEventLoop() gets called, but the resulting calls to  
Quartz don't appear to be functioning properly, as the window does not  
shake and in fact disappears, changing its frame to NSZeroRect for  
every frame of the key-animation.

I've tested this import issue on a clean Xcode project from the  
template and it occurs, but the internets at large have little to say  
about the matter outside of the py2app realm. Any thoughts/ 
workarounds? The fact that this works just fine on Snow Leopard leads  
me to believe that this is a bug with PyObjC in Leopard, but I really  
hope not.