PyObjC

Thanks was unaware of the other method, and had no way of performing the
operation, not really a bug anymore then.

Ok, of course that was using the trunk version, but the behavior is the
same for the Leopard stock install:

>>> m._.transform = t
Traceback (most recent call last):
File "<console>", line 1, in <module>
File
"/System/Library/Frameworks/Python.framework/Versions/2.5/Extras/lib/python/PyObjC/objc/_convenience.py",
line 141, in __setattr__
return self.__object.setValue_forKey_(value, key)
ValueError: NSInvalidArgumentException - Class OC_PythonObject: no such
selector: CATransform3DValue

Otherwise the other method is working even there ( .setTransform_(...),
.transform(), and even the ._.transform selectors).

Works here (stock leopard 10.5.6]:

>>> m
<CALayer: 0x20e91f0>
>>> t = CATransform3DMakeRotation(0.4, 0,0,1)
>>> m.setTransform_(t)
>>> m.setSublayerTransform_(t)

transforms the CALayer m as expected. Truth is that the convenience
m._.XXX methods don't work:

>>> m._.transform
<a7ca6b3f d761c73e 00000000 00000000 d761c7be a7ca6b3f 00000000 00000000
00000000 00000000 0000803f 00000000 00000000 00000000 00000000 0000803f>
>>> m._.transform = t
Traceback (most recent call last):
File "<console>", line 1, in <module>
File
"/Developer3rdp/pyobjc-svnv-trunk/pyobjc-core/Lib/objc/_convenience.py",
line 141, in __setattr__
return self.__object.setValue_forKey_(value, key)
ValueError: NSInvalidArgumentException - Class OC_PythonObject: no such
selector: CATransform3DValue
>>>

from my experience, this is not the only one property where the "._."
access notation doesn't work.