Hi,
Hi folks,
I’m having trouble using method overloading when using the CPython engine in Dynamo 2.10
Please check the following code to create a schema and place an instance of it in an element in the model.
It works just fine in IronPython but crashes in CPython (I skip the import block for brevity):
component = UnwrapElement(IN[0])
TransactionManager.Instance.EnsureInTransaction(doc)
def create_schema():
schema_guid = System.Guid("DF3BBCC1-4D4D-4A01-B444-F9722814F9CE")
schema_build…
opened 11:57PM - 19 Aug 21 UTC
closed 06:57PM - 05 Jan 22 UTC
bug
### Environment
- Pythonnet version: 3.0.0.dev1
- Python version: 3.9.6 … (also tried on 3.7)
- Operating System: Ubuntu 20.04
- .NET Runtime: mono-devel (Mono JIT compiler version 6.8.0.105)
- Open XML SDK 2.13.0 (from https://www.nuget.org/packages/DocumentFormat.OpenXml/)
### Details
Trying 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.
Everything works fine except this line of code:
```python
slideMasterPart1.AddPart(slideLayoutPart1, "rId1");
````
There are two definitions of `AddPart`:
```csharp
public virtual T AddPart<T>(T part) where T : OpenXmlPart
public virtual T AddPart<T>(T part, string id) where T : OpenXmlPart
```
` slideMasterPart1.AddPart.Overloads` output:
```
T AddPart[T](T)
T AddPart[T](T, System.String)
```
What works:
```python
slideMasterPart1.AddPart(slideLayoutPart1)
slideMasterPart1.AddPart[SlideLayoutPart](slideLayoutPart1)
````
What doesn't work:
```python
slideMasterPart1.AddPart(slideLayoutPart1, "rId1")
slideMasterPart1.AddPart(slideLayoutPart1, System.String("rId1"))
slideMasterPart1.AddPart[SlideLayoutPart](slideLayoutPart1, "rId1")
````
Error:
```
Python.Runtime.PythonException: DocumentFormat.OpenXml.Packaging.SlideLayoutPart value cannot be converted to T
The above exception was the direct cause of the following exception:
System.ArgumentException: DocumentFormat.OpenXml.Packaging.SlideLayoutPart value cannot be converted to T in method T AddPart[T](T, System.String) ---> Python.Runtime.PythonException: DocumentFormat.OpenXml.Packaging.SlideLayoutPart value cannot be converted to T
--- End of inner exception stack trace ---
The above exception was the direct cause of the following exception:
System.AggregateException: One or more errors occurred. (DocumentFormat.OpenXml.Packaging.SlideLayoutPart value cannot be converted to T in method T AddPart[T](T, System.String)) ---> System.ArgumentException: DocumentFormat.OpenXml.Packaging.SlideLayoutPart value cannot be converted to T in method T AddPart[T](T, System.String) ---> Python.Runtime.PythonException: DocumentFormat.OpenXml.Packaging.SlideLayoutPart value cannot be converted to T
--- End of inner exception stack trace ---
--- End of inner exception stack trace ---
---> (Inner Exception #0) System.ArgumentException: DocumentFormat.OpenXml.Packaging.SlideLayoutPart value cannot be converted to T in method T AddPart[T](T, System.String) ---> Python.Runtime.PythonException: DocumentFormat.OpenXml.Packaging.SlideLayoutPart value cannot be converted to T
--- End of inner exception stack trace ---<---
The above exception was the direct cause of the following exception:
...
slideMasterPart1.AddPart(slideLayoutPart1, "rId1");
TypeError: No method matches given arguments for AddPart: (<class 'DocumentFormat.OpenXml.Packaging.SlideLayoutPart'>, <class 'str'>)
```
mcve:
```python
import clr
clr.AddReference('DocumentFormat.OpenXml')
from DocumentFormat.OpenXml.Packaging import (
SlideLayoutPart,
SlideMasterPart,
)
slideLayoutPart1: SlideLayoutPart = SlideLayoutPart()
slideMasterPart1: SlideMasterPart = SlideMasterPart()
slideMasterPart1.AddPart(slideLayoutPart1) # this works OK
slideMasterPart1.AddPart(slideLayoutPart1, "rId1") # this raises a runtime exception
```
So it's only when the second (string) parameter is provided, the first can't be converted. Looks like a pythonnet issue.
you can use IronPython (2 or 3) instead
1 Like