Getting python exceptions printed the normal way with PyObjC

Question

I'm getting errors like this:

2010-07-13 20:43:15.131 Python[1527:60f] main: Caught OC_PythonException: : LoginMenuSet instance has no attribute 'play_sound'

That's with this code:

@try {
    [section loop]; //Loop through section
} @catch (NSException *exception) {
    NSLog(@"Caught %@: %@", [exception name], [exception reason]);
}

I want the python exception to be printed normally with the traceback and everything else.

Thank you.

score 9 · Answer 1 · answered Aug 31 '10 at 14:01

9

One trick to see Python exceptions is to call objc.setVerbose(1). This makes PyObjC slightly more verbose and causes it to print Python stack traces when converting exceptions from Python to Objective-C.

answered Aug 31 '10 at 14:01

Ronald Oussoren

2,715
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1

Thank you for this answer but since asking this question I did find my own solution eventually. I forgot to answer my own question but I'll do that below. – Matthew Mitchell Sep 01 '10 at 12:20
For completeness, you must first `import objc`. – reubano Jun 28 '17 at 16:31

score 0 · Accepted Answer · answered Sep 01 '10 at 12:24

Here's my own solution:

In Objective-C class:

@try {
        [section loop]; //Loop through section
    } @catch (NSException *exception) {
        NSLog(@"main: Caught %@: %@", [exception name], [exception reason]);
        [self exception: [[exception userInfo] valueForKey: @"__pyobjc_exc_traceback__"]];
    }

In python pyobjc subclass:

def exception_(self,trace):
        traceback.print_tb(trace)
        NSApplication.sharedApplication().terminate_(None) #Accept no errors

I, of-course, imported the traceback module.

Getting python exceptions printed the normal way with PyObjC

2 Answers2