[Pyobjc-dev] implementation of NSComboBoxDataSource informal protocol

[Steven D. A. <st...@ne...>]

I have a combo box on a form which I am populating via a data source.  I
have a manager class that handles the data source, as follows (some material
omitted to save space):

class WordTypeManager( Foundation.NSObject, AppKit.NSComboBoxDataSource ):
        
    def comboBox_objectValueForItemAtIndex_( self, comboBox, index ):
        return self.query[ index ][ 'long_type' ]

When I run my program, I get the following error:

AttributeError: No selector comboxBox:objectValueForItemAtIndex:
Traceback (most recent call last):
  File 
"/Users/thoth/Source/Build/dictionary.app/Contents/Resources/Main.py", line
13, in ?
    class WordTypeManager( Foundation.NSObject, AppKit.NSComboBoxDataSource
):
TypeError: class WordTypeManager does not implement protocol
NSComboBoxDataSource: no implementation for
comboxBox:objectValueForItemAtIndex:

I thought I was defining this function correctly -- replace `:' with `_'.
Any ideas what's going on?

Thanks in advance,

steve
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