Python int type is translated to pyInt when passed as a .net Dictionary value only in 3.x version #1755
Description
Environment
- Pythonnet version: 3.0.0a2
- Python version: 3.7, 3.8, 3.9, 3.10
- Operating System: Windows
- .NET Runtime: 4.7.2 framework
Details
After upgrading to pre release 3.0.0a2 version, the python int type is getting translated to PyInt instead of System.int32 inside the .NET DLL, and hence getting a unable to cast exception. this is working fine in 2.x version.
DLL method:
public void DictMethod(Dictionary<string, object> paramDict)
{
Console.WriteLine("Inside");
Console.WriteLine(paramDict["index"].GetType().ToString());
var index = Convert.ToInt32((paramDict["index"]));
}Python script:
clr.AddReference("System.Collections")
from System.Collections.Generic import Dictionary
from System import String
from System import Object
clr.AddReference("PyTest")
from PyTest import PyClass
class Utils(object):
@staticmethod
def prepare_dict(**kwargs):
dict_net = Dictionary[String,Object]()
for key_value in kwargs.keys():
dict_net.Add(key_value,kwargs[key_value])
return dict_net
parameters = {}
parameters['index'] = 1
net_dict = Utils.prepare_dict(**parameters)
obj = PyClass()
obj.DictMethod(net_dict)Output in 3.x version:
C:\Users\Athul\Desktop>c:\Python37\python.exe pynettest.py
Inside
Python.Runtime.PyInt
Traceback (most recent call last):
File "pynettest.py", line 50, in <module>
obj.DictMethod(net_dict)
System.InvalidCastException: Unable to cast object of type 'Python.Runtime.PyInt' to type 'System.IConvertible'.
at System.Convert.ToInt32(Object value)
at PyTest.PyClass.DictMethod(Dictionary`2 paramDict) in C:\Users\Athul\source\repos\PyTest\PyClass.cs:line 46
Output in 2.x version :
C:\Users\Athul\Desktop>c:\Python37\python.exe pynettest.py
Inside
System.Int32
C:\Users\Athul\Desktop>