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{"@context":"https://schema.org","@type":"DiscussionForumPosting","headline":"Cant Decode DateTime","articleBody":"### Environment\r\n\r\n-   Pythonnet version: 2.5.2\r\n-   Python version: 3.8.10\r\n-   Operating System: Windows 10\r\n-   .NET Runtime: Framework 4.7\r\n\r\n### Details\r\n\r\n-   Trying to pass a python datetime.datetime to a c# method accepting a System.DateTime.\r\n\r\nC# code\r\n\r\n```\r\nusing System;\r\nusing Python.Runtime;\r\n\r\nnamespace MyNamespace\r\n{\r\n    public static class MyClass\r\n    {\r\n        public static void TestInt(int i)\r\n        {\r\n            Console.WriteLine(i);\r\n        }\r\n\r\n        public static void TestDateTime(DateTime dateTime)\r\n        {\r\n            Console.WriteLine(dateTime);\r\n        }\r\n    }\r\n\r\n    public class MyCodecs : IPyObjectDecoder\r\n    {\r\n        public static void Setup()\r\n        {\r\n            Console.WriteLine(\"Setup Called\");\r\n            PyObjectConversions.RegisterDecoder(new MyCodecs());\r\n        }\r\n\r\n        public bool CanDecode(PyObject objectType, Type targetType)\r\n        {\r\n            Console.WriteLine(\"CanDecode Called\");\r\n            return targetType == typeof(DateTime);\r\n        }\r\n\r\n        public bool TryDecode\u003cT\u003e(PyObject pyObj, out T value)\r\n        {\r\n            Console.WriteLine(\"TryDecode Called\");\r\n            var dt = new DateTime(\r\n                pyObj.GetAttr(\"year\").As\u003cint\u003e(),\r\n                pyObj.GetAttr(\"month\").As\u003cint\u003e(),\r\n                pyObj.GetAttr(\"day\").As\u003cint\u003e(),\r\n                pyObj.GetAttr(\"hour\").As\u003cint\u003e(),\r\n                pyObj.GetAttr(\"minute\").As\u003cint\u003e(),\r\n                pyObj.GetAttr(\"second\").As\u003cint\u003e());\r\n            value = (T)(object)dt;\r\n            return true;\r\n        }\r\n    }\r\n}\r\n\r\n```\r\n\r\n\r\nPython code\r\n\r\n```\r\nimport clr\r\nfrom datetime import datetime\r\nclr.AddReference('MyLibrary')\r\n\r\n\r\nfrom MyNamespace import MyClass, MyCodecs\r\n\r\n#these two work\r\nMyCodecs.Setup()\r\nMyClass.TestInt(22)\r\n\r\n#error here\r\nMyClass.TestDateTime(datetime(2021, 1, 22))\r\n```\r\n\r\nThe exception is:\r\n```\r\nTypeError: No method matches given arguments for TestDateTime: (\u003cclass 'datetime.datetime'\u003e)\r\n```\r\n\r\nIts doent appear that any attempt is made to call MyCodecs.CanDecode or MyCodecs.TryDecode.  The WriteLines in those methods never get hit\r\n\r\n\r\n\r\n","author":{"url":"https://github.com/innominate227","@type":"Person","name":"innominate227"},"datePublished":"2021-07-28T20:57:15.000Z","interactionStatistic":{"@type":"InteractionCounter","interactionType":"https://schema.org/CommentAction","userInteractionCount":1},"url":"https://github.com/1496/pythonnet/issues/1496"}