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F# records are not accesssible if generic and inside a module #574
Description
Environment
- Pythonnet version: 2.3.0
- Python version: 3.5.3
- Operating System: Windows 10
- F# 4.4.1.0, .NET Framework 4.7
Details
F# records are not accessible in pythonnet if generic AND inside a module.
Sample F# code, all types but MyRecordD are accessible from Pythonnet:
namespace MyNamespace
type MyRecordA = { a: int; b: int }
type MyRecordB<'t> = { a: 't; b: 't }
module MyModule =
type MyRecordC = { a: int; b: int }
type MyRecordD<'t> = { a: 't; b: 't }Python code, ony the last line causes an error:
from clr import MyNamespace
MyNamespace.MyRecordA # Ok
MyNamespace.MyRecordB[System.String] # Ok
MyNamespace.MyModule.MyRecordC # Ok
MyNamespace.MyModule.MyRecordD[System.String] # AttributeError: type object 'MyModule' has no attribute 'MyRecordD'I noticed that dir(MyNamespace) contains 'MyRecordA', 'MyRecordB', 'MyRecordB`1' while dir(MyNamespace.MyModule) only contains 'MyRecordC', 'MyRecordD`1' but no 'MyRecordD'.
Activity
den-run-ai commentedon Nov 18, 2017
Can you show your F# version and the code for
MyRecord?Did you try accessing this F# type via System.Reflection in Python?
den-run-ai commentedon Nov 18, 2017
Or using
getattrdmitriyse commentedon Nov 18, 2017
Your clr.MyNamespace.MyRecord is generic with one argument, that's why CLR shows `1
den-run-ai commentedon Nov 18, 2017
@stevehv also what happens when you try accessing your F# record without
clr.? That should not be required for .NET namespaces imported properly through pythonnet - they should act like normal Python namespaces.stevehv commentedon Nov 19, 2017
Owing to some sleep deprivation the problematic F# code was not what I originally thought it was.
I have updated the original issue so that it is now reproducible, apologies for any confusion.
Accessing without
clr.did not make a difference.getattrdid not work either:den-run-ai commentedon Nov 19, 2017
Can you show output of MyNamespace.MyModule.MyRecordD.Overloads?
stevehv commentedon Nov 19, 2017
System.Reflection
dll.GetType("MyNamespace.MyModule+MyRecordD`1"))seems to work ok, but doing every function call using reflection makes code unreadable.[-]F# record MyRecord becomes MyRecord`1 in pythonnet[/-][+]F# record not accesssible if generic and inside a module[/+][-]F# record not accesssible if generic and inside a module[/-][+]F# records are not accesssible if generic and inside a module[/+]den-run-ai commentedon Nov 27, 2017
@stevehv any idea how this F# code looks like in C#? i'm not sure if this is only IL feature or available in C# too?
lostmsu commentedon Sep 17, 2022
This should be added to #1374