René's URL Explorer Experiment

{"@context":"https://schema.org","@type":"DiscussionForumPosting","headline":"Cannot convert to managed type","articleBody":"### Environment\r\n\r\n-   Pythonnet version: 3.0.0-rc4\r\n-   Python version: 3.8\r\n-   Operating System: Windows11\r\n-   .NET Runtime: .NET Framework 4.8\r\n\r\n### Details\r\n\r\nWith the following code in C#, when a Python class has __getitem__() defined, it will be converted to an array (System.Object[]) in managed code:\r\n\r\nList\u003cobject\u003e lst = new List\u003cobject\u003e();\r\n                using (Py.GIL())\r\n                {\r\n                    using (var scope = Py.CreateScope())\r\n                    {\r\n                        scope.Set(\"lst\", lst);\r\n                        string text = @\"\r\nclass DBRow:\r\n    def __init__(self, row, col_names):\r\n        self.row = row\r\n        self.col_names = col_names    \r\n        \r\n    def __getitem__(self, key):   \r\n        if isinstance(key, int):\r\n            return self.row[key]\r\n\r\n        if key in self.col_names:\r\n            index = self.col_names.index(key)\r\n            return self.row[index]\r\n        else:\r\n            return None \r\n            \r\ncol_names=['col1', 'col2', 'col3']\r\nrow=[1, '2', 3]\r\n\r\nr = DBRow(row, col_names)\r\nlst.Add(r)\r\n\";\r\n\r\n                        var code = PythonEngine.Compile(text);\r\n                        scope.Execute(code);\r\n                    }\r\n                }\r\n                string str = lst[0].GetType().ToString();\r\n","author":{"url":"https://github.com/Tiehong","@type":"Person","name":"Tiehong"},"datePublished":"2022-08-08T18:36:01.000Z","interactionStatistic":{"@type":"InteractionCounter","interactionType":"https://schema.org/CommentAction","userInteractionCount":3},"url":"https://github.com/1900/pythonnet/issues/1900"}