Re: [Pyobjc-dev] Supporting (NSString **) API (and the like)

[<bb...@ma...>]

Definitely an improvement, but raises another question.... what to do  
if the method returns BOOL, but we want it to return a tuple like thing.

For example, consider:

 >>> app, docType =  
NSWorkspace.sharedWorkspace().pyobjcGetInfoForFile_("/tmp/opt5_faq.pdf")
 >>> print app
/Applications/Preview.app
 >>> print docType
pdf

But:

 >>> app, docType =  
NSWorkspace.sharedWorkspace().pyobjcGetInfoForFile_("/tmp/something  
that isn't there")
2002-11-26 18:47:05.074 python[23743] LSGetApplicationForURL() returned  
-43 for file /tmp/something that isn't there.
Traceback (most recent call last):
   File "<stdin>", line 1, in ?
TypeError: unpack non-sequence

This is because the current implementation returns nil -- not (nil,  
nil).   There isn't really a way for it to return (nil, nil).

A possible answer is to raise FileError -- but this fairly radically  
changes the behavior of the underlying API.

Are there examples from within the python library of things that return  
a tuple vs. None??

Hmmm.....

b.bum