Constructors with arguments snake-cased version

src/embed_tests/TestMethodBinder.cs

@@ -805,6 +805,34 @@ public string ImplicitConversionSameArgumentCount2(string symbol, decimal quanti
             {
                 return "ImplicitConversionSameArgumentCount2 2";
             }
+
+            // ----
+
+            public string VariableArgumentsMethod(params CSharpModel[] paramsParams)
+            {
+                return "VariableArgumentsMethod(CSharpModel[])";
+            }
+
+            public string VariableArgumentsMethod(params PyObject[] paramsParams)
+            {
+                return "VariableArgumentsMethod(PyObject[])";
+            }
+
+            public string ConstructorMessage { get; set; }
+
+            public OverloadsTestClass(params CSharpModel[] paramsParams)
+            {
+                ConstructorMessage = "OverloadsTestClass(CSharpModel[])";
+            }
+
+            public OverloadsTestClass(params PyObject[] paramsParams)
+            {
+                ConstructorMessage = "OverloadsTestClass(PyObject[])";
+            }
+
+            public OverloadsTestClass()
+            {
+            }
         }
 
         [TestCase("Method1('abc', namedArg1=10, namedArg2=321)", "Method1 Overload 1")]
@@ -898,6 +926,75 @@ def call_method(instance):
             Assert.IsFalse(Exceptions.ErrorOccurred());
         }
 
+        [Test]
+        public void BindsConstructorToSnakeCasedArgumentsVersion([Values] bool useCamelCase, [Values] bool passOptionalArgument)
+        {
+            using var _ = Py.GIL();
+
+            var argument1Name = useCamelCase ? "someArgument" : "some_argument";
+            var argument2Name = useCamelCase ? "anotherArgument" : "another_argument";
+            var argument2Code = passOptionalArgument ? $", {argument2Name}=\"another argument value\"" : "";
+
+            var module = PyModule.FromString("BindsConstructorToSnakeCasedArgumentsVersion", @$"
+from clr import AddReference
+AddReference(""System"")
+from Python.EmbeddingTest import *
+
+def create_instance():
+    return TestMethodBinder.CSharpModel({argument1Name}=1{argument2Code})
+");
+            var exception = Assert.Throws<ClrBubbledException>(() => module.GetAttr("create_instance").Invoke());
+            var sourceException = exception.InnerException;
+            Assert.IsInstanceOf<NotImplementedException>(sourceException);
+
+            var expectedMessage = passOptionalArgument
+                ? "Constructor with arguments: someArgument=1. anotherArgument=\"another argument value\""
+                : "Constructor with arguments: someArgument=1. anotherArgument=\"another argument default value\"";
+            Assert.AreEqual(expectedMessage, sourceException.Message);
+        }
+
+        [Test]
+        public void PyObjectArrayHasPrecedenceOverOtherTypeArrays()
+        {
+            using var _ = Py.GIL();
+
+            var module = PyModule.FromString("PyObjectArrayHasPrecedenceOverOtherTypeArrays", @$"
+from clr import AddReference
+AddReference(""System"")
+from Python.EmbeddingTest import *
+
+class PythonModel(TestMethodBinder.CSharpModel):
+    pass
+
+def call_method():
+    return TestMethodBinder.OverloadsTestClass().VariableArgumentsMethod(PythonModel(), PythonModel())
+");
+
+            var result = module.GetAttr("call_method").Invoke().As<string>();
+            Assert.AreEqual("VariableArgumentsMethod(PyObject[])", result);
+        }
+
+        [Test]
+        public void PyObjectArrayHasPrecedenceOverOtherTypeArraysInConstructors()
+        {
+            using var _ = Py.GIL();
+
+            var module = PyModule.FromString("PyObjectArrayHasPrecedenceOverOtherTypeArrays", @$"
+from clr import AddReference
+AddReference(""System"")
+from Python.EmbeddingTest import *
+
+class PythonModel(TestMethodBinder.CSharpModel):
+    pass
+
+def get_instance():
+    return TestMethodBinder.OverloadsTestClass(PythonModel(), PythonModel())
+");
+
+            var instance = module.GetAttr("get_instance").Invoke();
+            Assert.AreEqual("OverloadsTestClass(PyObject[])", instance.GetAttr("ConstructorMessage").As<string>());
+        }
+
 
         // Used to test that we match this function with Py DateTime & Date Objects
         public static int GetMonth(DateTime test)
@@ -918,6 +1015,12 @@ public CSharpModel()
                     new TestImplicitConversion()
                 };
             }
+
+            public CSharpModel(int someArgument, string anotherArgument = "another argument default value")
+            {
+                throw new NotImplementedException($"Constructor with arguments: someArgument={someArgument}. anotherArgument=\"{anotherArgument}\"");
+            }
+
             public void TestList(List<TestImplicitConversion> conversions)
             {
                 if (!conversions.Any())

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="2.0.37" GeneratePathProperty="true">
+    <PackageReference Include="quantconnect.pythonnet" Version="2.0.38" GeneratePathProperty="true">
       <IncludeAssets>compile</IncludeAssets>
     </PackageReference>
   </ItemGroup>
@@ -25,7 +25,7 @@
   </Target>
 
   <Target Name="CopyBaseline" AfterTargets="Build">
-    <Copy SourceFiles="$(NuGetPackageRoot)quantconnect.pythonnet\2.0.37\lib\net6.0\Python.Runtime.dll" DestinationFolder="$(OutDir)baseline" />
+    <Copy SourceFiles="$(NuGetPackageRoot)quantconnect.pythonnet\2.0.38\lib\net6.0\Python.Runtime.dll" DestinationFolder="$(OutDir)baseline" />
   </Target>
 
   <Target Name="CopyNewBuild" AfterTargets="Build">

src/runtime/ClassManager.cs

@@ -552,6 +552,11 @@
                             methodList = methods[name] = new ();
                         }
                         methodList.Add(ctor, true);
+                        // Same constructor, but with snake-cased arguments
+                        if (ctor.GetParameters().Any(pi => pi.Name?.ToSnakeCase() != pi.Name))
+                        {
+                            methodList.Add(ctor, false);
+                        }
                         continue;
 
                     case MemberTypes.Property:
@@ -668,7 +673,7 @@
         /// </summary>
         private class ClassInfo
         {
             public Indexer? indexer;
             public readonly Dictionary<string, PyObject> members = new();
 
             internal ClassInfo()

src/runtime/MethodBinder.cs

@@ -365,6 +365,16 @@ internal static int ArgPrecedence(Type t, MethodInformation mi)
                 return -1;
             }
 
+            if (t.IsArray)
+            {
+                Type e = t.GetElementType();
+                if (e == objectType)
+                {
+                    return 2500;
+                }
+                return 100 + ArgPrecedence(e, mi);
+            }
+
             TypeCode tc = Type.GetTypeCode(t);
             // TODO: Clean up
             switch (tc)
@@ -406,16 +416,6 @@ internal static int ArgPrecedence(Type t, MethodInformation mi)
                     return 40;
             }
 
-            if (t.IsArray)
-            {
-                Type e = t.GetElementType();
-                if (e == objectType)
-                {
-                    return 2500;
-                }
-                return 100 + ArgPrecedence(e, mi);
-            }
-
             return 2000;
         }
 

src/runtime/Properties/AssemblyInfo.cs

@@ -4,5 +4,5 @@
 [assembly: InternalsVisibleTo("Python.EmbeddingTest, PublicKey=00240000048000009400000006020000002400005253413100040000110000005ffd8f49fb44ab0641b3fd8d55e749f716e6dd901032295db641eb98ee46063cbe0d4a1d121ef0bc2af95f8a7438d7a80a3531316e6b75c2dae92fb05a99f03bf7e0c03980e1c3cfb74ba690aca2f3339ef329313bcc5dccced125a4ffdc4531dcef914602cd5878dc5fbb4d4c73ddfbc133f840231343e013762884d6143189")]
 [assembly: InternalsVisibleTo("Python.Test, PublicKey=00240000048000009400000006020000002400005253413100040000110000005ffd8f49fb44ab0641b3fd8d55e749f716e6dd901032295db641eb98ee46063cbe0d4a1d121ef0bc2af95f8a7438d7a80a3531316e6b75c2dae92fb05a99f03bf7e0c03980e1c3cfb74ba690aca2f3339ef329313bcc5dccced125a4ffdc4531dcef914602cd5878dc5fbb4d4c73ddfbc133f840231343e013762884d6143189")]
 
-[assembly: AssemblyVersion("2.0.37")]
-[assembly: AssemblyFileVersion("2.0.37")]
+[assembly: AssemblyVersion("2.0.38")]
+[assembly: AssemblyFileVersion("2.0.38")]

src/runtime/Python.Runtime.csproj

@@ -5,7 +5,7 @@
     <RootNamespace>Python.Runtime</RootNamespace>
     <AssemblyName>Python.Runtime</AssemblyName>
     <PackageId>QuantConnect.pythonnet</PackageId>
-    <Version>2.0.37</Version>
+    <Version>2.0.38</Version>
     <GenerateAssemblyInfo>false</GenerateAssemblyInfo>
     <PackageLicenseFile>LICENSE</PackageLicenseFile>
     <RepositoryUrl>https://github.com/pythonnet/pythonnet</RepositoryUrl>