Methods to load libraries dynamically in Pythonista beta 1.6

libraryLoader.py

# coding: utf-8
import os
import sys
import ctypes
from ctypes import util
from objc_util import *

def loadLibrary(library):
    bundle = ObjCClass("NSBundle").bundleWithPath_(library)
    print bundle
    preflightError = ctypes.c_void_p()
    preflight = bundle.preflightAndReturnError_(ctypes.byref(preflightError))
    
    if not preflight:
        error = ObjCInstance(preflightError)
        userinfo = error.userInfo()
        print 'ERROR', error.code()
        print 'Failed to run preflight on the Framework: %s' % userinfo['NSBundlePath']
        print error.localizedDescription()
        print error.localizedRecoverySuggestion()
        print userinfo['NSDebugDescription']
        return
    
    loadError = ctypes.c_void_p()
    loaded = bundle.loadAndReturnError_(ctypes.byref(loadError))
    if not loaded:
        error = ObjCInstance(preflightError)
        userinfo = error.userInfo()
        print 'ERROR', error.code()
        print 'Failed to load the Framework: %s' % userinfo['NSBundlePath']
        print error.localizedDescription()
        print error.localizedRecoverySuggestion()
        return
    
    print 'Loaded Library:', bundle.bundlePath()
    print 'Version:', bundle.versionNumber()
    print 'Executable:', bundle.executablePath()
    print 'Identifier:', bundle.bundleIdentifier()
    principalClass = bundle.principalClass()
    
    if principalClass is None:
        print 'So close. But sadly this library has no principalClass'
        return
    principalClass = ObjCInstance(principalClass)
    return principalClass
        
if __name__ == '__main__':
    pui = loadLibrary('/System/Library/Frameworks/PhotosUI.framework')
    print pui