How to terminate the terminate Async && "rubicon.objc.async" to "rubicon.objc.eventloop" about rubicon-objc HOT 5 CLOSED

I'm not an expert on the async features of Rubicon, but I think the line app = NSApplication might be the problem - that sets app to the NSApplication class, not a NSApplication instance. You probably need to use app = NSApplication.sharedApplication(), like in the code from the documentation.

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@dgelessus I have changed the file to:

    # Import the Event Loop Policy and lifecycle
    from rubicon.objc.eventloop import EventLoopPolicy, CocoaLifecycle
    # importing asyncio to set event loop
    import asyncio
    # Asyncio Install the event loop policy
    asyncio.set_event_loop_policy(EventLoopPolicy())
    # Get a handle to the shared NSApplication
    from ctypes import cdll, util
    from rubicon.objc import ObjCClass
    appkit = cdll.LoadLibrary(util.find_library('AppKit'))
    NSApplication = ObjCClass('NSApplication')
    app = NSApplication.sharedApplication()
    # Get an event loop, and run it, using the NSApplication!
    loop = asyncio.get_event_loop()
    loop.run_forever(lifecycle=CocoaLifecycle(app))

Here is the error message:

    Traceback (most recent call last):
        File "aio/r1a.py", line 13, in <module>
            app = NSApplication.sharedApplication()
    TypeError: 'ObjCInstance' object is not callable

Thanks for the help!

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Ah, this is a relatively common problem - it happens when you try to call a method, but it's actually a property. In this case, you need to add NSApplication.declare_class_property('sharedApplication') under the NSApplication = ObjCClass('NSApplication') line, and then remove the parentheses from the sharedApplication call (i. e. replace NSApplication.sharedApplication() with NSApplication.sharedApplication).

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@dgelessus

Super cool! It works! Thanks so much!

May I set up a PR for editing the documentation representing the correct syntax?

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Merged it. Thank you for all the documentation fixes :)

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