[Pyobjc-dev] How to do isKindOfClass:? (and a bug fix)

[Bill B. <bb...@co...>]

The NSStringFromClass() function in Foundation was misnamed as 
NSClassFromString() -- breaking the original implementation of that 
function.  Fixed.

I added a propertyListFromPythonCollection() function to the 
Foundation.   It is just a copy/paste of what was previously committed 
in the example.

I was going to go ahead and write the obvious 
pythonCollectionFromPropertyList() function, but ran into a problem.

[bumbox:~/bbum-developer/sourceforge/pyobjc] bbum% python
Python 2.2 (#1, 07/14/02, 23:25:09)
[GCC Apple cpp-precomp 6.14] on darwin
Type "help", "copyright", "credits" or "license" for more information.
 >>> from Foundation import *
 >>> mD = NSMutableDictionary.dictionary()
 >>> mD
<NSCFDictionary objective-c instance 0x161cf0>
 >>> mD.__class__
<objective-c class NSCFDictionary at 0x8db130>
 >>> mD.isKindOfClass_(NSClassFromString("NSDictionary"))
0
 >>> NSClassFromString("NSDictionary")
<objective-c class NSDictionary at 0x82f3b0>
 >>> mD.isKindOfClass_("NSDictionary")
Traceback (most recent call last):
   File "<stdin>", line 1, in ?
TypeError: expected a ObjC class or None for argument 1: its typespec 
is '#'
 >>> mD.isKindOfClass_(NSDictionary)
0
 >>> NSDictionary
<objective-c class NSDictionary at 0x82f3b0>

(If you are running the unpatched version of PyObjC, you'll need to use 
lookup_class, not NSClassFromString()).

b.bum