Handle managed enum constructor from Python (#106)

* Make EnumObject derive ClassObject for constructor handling

* Bump version to 2.0.48

Author: jhonabreul

src/embed_tests/EnumTests.cs

@@ -621,6 +621,30 @@ public void ThrowsOnNullComparisonOperators([Values("<", "<=", ">", ">=")] strin
             Assert.Throws<PythonException>(() => module.InvokeMethod("compare_with_csharp_object2", pyNull));
         }
 
+        [TestCase(VerticalDirection.Down)]
+        [TestCase(VerticalDirection.Flat)]
+        [TestCase(VerticalDirection.Up)]
+        public void CanInstantiateEnumFromInt(VerticalDirection expectedEnumValue)
+        {
+            using var _ = Py.GIL();
+            using var module = PyModule.FromString("CanInstantiateEnumFromInt", $@"
+from clr import AddReference
+AddReference(""Python.EmbeddingTest"")
+
+from Python.EmbeddingTest import *
+
+def get_enum(int_value):
+    return {nameof(EnumTests)}.{nameof(VerticalDirection)}(int_value)
+
+");
+
+            using var pyEnumIntValue = ((int)expectedEnumValue).ToPython();
+            PyObject pyEnumValue = null;
+            Assert.DoesNotThrow(() => pyEnumValue = module.InvokeMethod("get_enum", pyEnumIntValue));
+            var enumValue = pyEnumValue.As<VerticalDirection>();
+            Assert.AreEqual(expectedEnumValue, enumValue);
+        }
+
         public class TestClass
         {
         }

src/perf_tests/Python.PerformanceTests.csproj

@@ -13,7 +13,7 @@
       <IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>
     </PackageReference>
     <PackageReference Include="Microsoft.NET.Test.Sdk" Version="16.*" />
-    <PackageReference Include="quantconnect.pythonnet" Version="2.0.47" GeneratePathProperty="true">
+    <PackageReference Include="quantconnect.pythonnet" Version="2.0.48" GeneratePathProperty="true">
       <IncludeAssets>compile</IncludeAssets>
     </PackageReference>
   </ItemGroup>
@@ -25,7 +25,7 @@
   </Target>
 
   <Target Name="CopyBaseline" AfterTargets="Build">
-    <Copy SourceFiles="$(NuGetPackageRoot)quantconnect.pythonnet\2.0.47\lib\net9.0\Python.Runtime.dll" DestinationFolder="$(OutDir)baseline" />
+    <Copy SourceFiles="$(NuGetPackageRoot)quantconnect.pythonnet\2.0.48\lib\net9.0\Python.Runtime.dll" DestinationFolder="$(OutDir)baseline" />
   </Target>
 
   <Target Name="CopyNewBuild" AfterTargets="Build">

src/runtime/Properties/AssemblyInfo.cs

@@ -4,5 +4,5 @@
 [assembly: InternalsVisibleTo("Python.EmbeddingTest, PublicKey=00240000048000009400000006020000002400005253413100040000110000005ffd8f49fb44ab0641b3fd8d55e749f716e6dd901032295db641eb98ee46063cbe0d4a1d121ef0bc2af95f8a7438d7a80a3531316e6b75c2dae92fb05a99f03bf7e0c03980e1c3cfb74ba690aca2f3339ef329313bcc5dccced125a4ffdc4531dcef914602cd5878dc5fbb4d4c73ddfbc133f840231343e013762884d6143189")]
 [assembly: InternalsVisibleTo("Python.Test, PublicKey=00240000048000009400000006020000002400005253413100040000110000005ffd8f49fb44ab0641b3fd8d55e749f716e6dd901032295db641eb98ee46063cbe0d4a1d121ef0bc2af95f8a7438d7a80a3531316e6b75c2dae92fb05a99f03bf7e0c03980e1c3cfb74ba690aca2f3339ef329313bcc5dccced125a4ffdc4531dcef914602cd5878dc5fbb4d4c73ddfbc133f840231343e013762884d6143189")]
 
-[assembly: AssemblyVersion("2.0.47")]
-[assembly: AssemblyFileVersion("2.0.47")]
+[assembly: AssemblyVersion("2.0.48")]
+[assembly: AssemblyFileVersion("2.0.48")]

src/runtime/Python.Runtime.csproj

@@ -5,7 +5,7 @@
     <RootNamespace>Python.Runtime</RootNamespace>
     <AssemblyName>Python.Runtime</AssemblyName>
     <PackageId>QuantConnect.pythonnet</PackageId>
-    <Version>2.0.47</Version>
+    <Version>2.0.48</Version>
     <GenerateAssemblyInfo>false</GenerateAssemblyInfo>
     <PackageLicenseFile>LICENSE</PackageLicenseFile>
     <RepositoryUrl>https://github.com/pythonnet/pythonnet</RepositoryUrl>

src/runtime/Types/EnumObject.cs

@@ -7,7 +7,7 @@ namespace Python.Runtime
     /// Managed class that provides the implementation for reflected enum types.
     /// </summary>
     [Serializable]
-    internal class EnumObject : ClassBase
+    internal class EnumObject : ClassObject
     {
         internal EnumObject(Type type) : base(type)
         {