René's URL Explorer Experiment

{"@context":"https://schema.org","@type":"DiscussionForumPosting","headline":"Enumerable First/Last using Python list.","articleBody":"The following test currently crashes the runtime (stack trace included below).\n\n``` python\nclass EnumerableTest(unittest.TestCase):\n    def testFirstAndLast(self):\n        values = [1, 2, 3]\n        self.assertTrue(Enumerable.First(values) == 1)\n        self.assertTrue(Enumerable.Last(values) == 3)\n```\n\n```\nUnhandled Exception: System.NullReferenceException: Object reference not set to an instance of an object.\n   at Python.Runtime.MethodBinder.MatchParameters(MethodInfo[] mi, Type[] tp)\n   at Python.Runtime.MethodBinder.Bind(IntPtr inst, IntPtr args, IntPtr kw, MethodBase info, MethodInfo[] methodinfo)\n   at Python.Runtime.MethodBinder.Invoke(IntPtr inst, IntPtr args, IntPtr kw, MethodBase info, MethodInfo[] methodinfo)\n   at Python.Runtime.MethodObject.Invoke(IntPtr target, IntPtr args, IntPtr kw, MethodBase info)\n   at Python.Runtime.MethodBinding.tp_call(IntPtr ob, IntPtr args, IntPtr kw)\n   at Python.Runtime.Runtime.Py_Main(Int32 argc, String[] argv)\n   at Python.Runtime.PythonConsole.Main(String[] args)\n```\n\nDo you expect this to work correctly?\n\nThanks,\n","author":{"url":"https://github.com/galpin","@type":"Person","name":"galpin"},"datePublished":"2015-12-14T14:50:34.000Z","interactionStatistic":{"@type":"InteractionCounter","interactionType":"https://schema.org/CommentAction","userInteractionCount":7},"url":"https://github.com/113/pythonnet/issues/113"}