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

[Ronald O. <ous...@ci...>]

Sorry for the late reply, I didn't have e-mail connectivity yesterday.

There is no need to add (Objective-)C code for this method, or any  
method that has pass-by-reference type arguments. I've just checked in  
a missing definition that allows you to just call  
NSWorkspace.getInfoForFile_application_type_(fname).

I'll work on some documentation for this feature.

Ronald

On Wednesday, Nov 27, 2002, at 00:48 Europe/Amsterdam, bb...@ma...  
wrote:

> 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
>
>
>
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