René's URL Explorer Experiment

{"@context":"https://schema.org","@type":"DiscussionForumPosting","headline":"\"TypeError: No method matches given arguments\" error for a virtual method with a template parameter","articleBody":"### Environment\r\n\r\n-   Pythonnet version: 3.0.0.dev1\r\n-   Python version: 3.9.6 (also tried on 3.7)\r\n-   Operating System: Ubuntu 20.04\r\n-   .NET Runtime: mono-devel (Mono JIT compiler version 6.8.0.105)\r\n-   Open XML SDK 2.13.0 (from https://www.nuget.org/packages/DocumentFormat.OpenXml/)\r\n\r\n### Details\r\n\r\nTrying to re-implement example from [here](https://docs.microsoft.com/en-us/office/open-xml/how-to-create-a-presentation-document-by-providing-a-file-name) using Python.\r\n\r\nEverything works fine except this line of code:\r\n\r\n```python\r\n    slideMasterPart1.AddPart(slideLayoutPart1, \"rId1\");\r\n````\r\n\r\nThere are two definitions of `AddPart`:\r\n\r\n```csharp\r\n    public virtual T AddPart\u003cT\u003e(T part)  where T : OpenXmlPart\r\n    public virtual T AddPart\u003cT\u003e(T part, string id)  where T : OpenXmlPart\r\n```\r\n\r\n` slideMasterPart1.AddPart.Overloads` output: \r\n```\r\nT AddPart[T](T)\r\nT AddPart[T](T, System.String)\r\n```\r\n\r\nWhat works:\r\n```python\r\n    slideMasterPart1.AddPart(slideLayoutPart1)\r\n    slideMasterPart1.AddPart[SlideLayoutPart](slideLayoutPart1)\r\n````\r\n\r\nWhat doesn't work:\r\n```python\r\n    slideMasterPart1.AddPart(slideLayoutPart1, \"rId1\")\r\n    slideMasterPart1.AddPart(slideLayoutPart1, System.String(\"rId1\"))\r\n    slideMasterPart1.AddPart[SlideLayoutPart](slideLayoutPart1, \"rId1\")\r\n````\r\n\r\nError:\r\n```\r\nPython.Runtime.PythonException: DocumentFormat.OpenXml.Packaging.SlideLayoutPart value cannot be converted to T\r\n\r\nThe above exception was the direct cause of the following exception:\r\n\r\nSystem.ArgumentException: DocumentFormat.OpenXml.Packaging.SlideLayoutPart value cannot be converted to T in method T AddPart[T](T, System.String) ---\u003e Python.Runtime.PythonException: DocumentFormat.OpenXml.Packaging.SlideLayoutPart value cannot be converted to T\r\n   --- End of inner exception stack trace ---\r\n\r\nThe above exception was the direct cause of the following exception:\r\n\r\nSystem.AggregateException: One or more errors occurred. (DocumentFormat.OpenXml.Packaging.SlideLayoutPart value cannot be converted to T in method T AddPart[T](T, System.String)) ---\u003e System.ArgumentException: DocumentFormat.OpenXml.Packaging.SlideLayoutPart value cannot be converted to T in method T AddPart[T](T, System.String) ---\u003e Python.Runtime.PythonException: DocumentFormat.OpenXml.Packaging.SlideLayoutPart value cannot be converted to T\r\n   --- End of inner exception stack trace ---\r\n   --- End of inner exception stack trace ---\r\n---\u003e (Inner Exception #0) System.ArgumentException: DocumentFormat.OpenXml.Packaging.SlideLayoutPart value cannot be converted to T in method T AddPart[T](T, System.String) ---\u003e Python.Runtime.PythonException: DocumentFormat.OpenXml.Packaging.SlideLayoutPart value cannot be converted to T\r\n   --- End of inner exception stack trace ---\u003c---\r\n\r\nThe above exception was the direct cause of the following exception:\r\n...\r\nslideMasterPart1.AddPart(slideLayoutPart1, \"rId1\");\r\nTypeError: No method matches given arguments for AddPart: (\u003cclass 'DocumentFormat.OpenXml.Packaging.SlideLayoutPart'\u003e, \u003cclass 'str'\u003e)\r\n```\r\n\r\nmcve:\r\n```python\r\nimport clr\r\n\r\nclr.AddReference('DocumentFormat.OpenXml')\r\n\r\nfrom DocumentFormat.OpenXml.Packaging import (\r\n    SlideLayoutPart,\r\n    SlideMasterPart,\r\n)\r\n\r\nslideLayoutPart1: SlideLayoutPart = SlideLayoutPart()\r\nslideMasterPart1: SlideMasterPart = SlideMasterPart()\r\nslideMasterPart1.AddPart(slideLayoutPart1)  # this works OK\r\nslideMasterPart1.AddPart(slideLayoutPart1, \"rId1\")  # this raises a runtime exception\r\n```\r\n\r\nSo it's only when the second (string) parameter is provided, the first can't be converted. Looks like a pythonnet issue.","author":{"url":"https://github.com/rayrapetyan","@type":"Person","name":"rayrapetyan"},"datePublished":"2021-08-19T23:57:33.000Z","interactionStatistic":{"@type":"InteractionCounter","interactionType":"https://schema.org/CommentAction","userInteractionCount":2},"url":"https://github.com/1522/pythonnet/issues/1522"}