Re: [Pyobjc-dev] __dict__?

[Martina O. <Ma...@Oe...>]

IHMO, that's a PyObjC feature, not a bug.

New style classes with __slots__ also don't have a __dict__, so  
PyUMLGraph won't work with them, too:

 >>> class C(object):
...     __slots__=[]
...
 >>> x=C()
 >>> x.__dict__
Traceback (most recent call last):
   File "<stdin>", line 1, in ?
AttributeError: 'C' object has no attribute '__dict__'

PyUMLGraph should use dir instead - this works with both new and  
old-style classes:

 >>> dir(x)
['__class__', '__delattr__', '__doc__', '__getattribute__', '__hash__',  
'__init__', '__module__', '__new__', '__reduce__', '__reduce_ex__',  
'__repr__', '__setattr__', '__slots__', '__str__']

Am Dienstag, 21.10.03 um 07:58 Uhr schrieb b.bum:

> http://www.pobox.com/~adamf/software/PyUMLGraph
>
> (graphviz installs fine via Fink, btw.)
>
> I was playing with PyUMLGraph (cool stuff) and ran it against a PyObjC  
> example.  It breaks with the following which raises the question as to  
> whether or not we should have a __dict__ attribute on the Python side  
> of the bridge and, if so, what it should be populated with.
>
> [administrators-computer:sourceforge/pyobjc/Examples] bbum% pyumlgraph  
> --types --nodefillcolor="#ffcc19" -o subclassing-objective-c.dot  
> subclassing-objective-c.py
> <native-selector alloc of <objective-c class Demo at 0x325020>>
> Traceback (most recent call last):
>   File  
> "/System/Library/Frameworks/Python.framework/Versions/Current/bin/ 
> pyumlgraph", line 139, in ?
>     main()
>   File  
> "/System/Library/Frameworks/Python.framework/Versions/Current/bin/ 
> pyumlgraph", line 126, in main
>     umlGrapher.run('execfile(' + `progname` + ')')
>   File  
> "/System/Library/Frameworks/Python.framework/Versions/2.3/lib/ 
> python2.3/site-packages/PyUMLGraph/UmlGrapher.py", line 16, in run
>     exec cmd in dict, dict
>   File "<string>", line 1, in ?
>   File "subclassing-objective-c.py", line 31, in ?
>     x = Demo.alloc().init()
>   File "subclassing-objective-c.py", line 15, in init
>     def init(self):
>   File  
> "/System/Library/Frameworks/Python.framework/Versions/2.3/lib/ 
> python2.3/site-packages/PyUMLGraph/InfoCollector.py", line 48, in  
> globalTrace
>     self.collectInfo(frame, event, arg)
>   File  
> "/System/Library/Frameworks/Python.framework/Versions/2.3/lib/ 
> python2.3/site-packages/PyUMLGraph/InfoCollector.py", line 65, in  
> collectInfo
>     self.collectInfoForClass(className, frame, event, arg)
>   File  
> "/System/Library/Frameworks/Python.framework/Versions/2.3/lib/ 
> python2.3/site-packages/PyUMLGraph/InfoCollector.py", line 82, in  
> collectInfoForClass
>     classInfo.collectInfo(frame, event, arg)
>   File  
> "/System/Library/Frameworks/Python.framework/Versions/2.3/lib/ 
> python2.3/site-packages/PyUMLGraph/ClassInfo.py", line 53, in  
> collectInfo
>     self.selfReferences.collectInfo(frame, event, arg)
>   File  
> "/System/Library/Frameworks/Python.framework/Versions/2.3/lib/ 
> python2.3/site-packages/PyUMLGraph/SelfReferencesGatherer.py", line  
> 17, in collectInfo
>     attributes = self.getInstanceAttributes(frame.f_locals["self"])
>   File  
> "/System/Library/Frameworks/Python.framework/Versions/2.3/lib/ 
> python2.3/site-packages/PyUMLGraph/Gatherer.py", line 36, in  
> getInstanceAttributes
>     return object.__dict__
> AttributeError: 'Demo' object has no attribute '__dict__'
>
>
>
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ciao
Martina