pythonnet · filmor · Aug 8, 2022 · Aug 8, 2022
diff --git a/CHANGELOG.md b/CHANGELOG.md
@@ -67,6 +67,9 @@ or the DLL must be loaded in advance. This must be done before calling any other
 -   BREAKING: disabled implicit conversion from C# enums to Python `int` and back.
 One must now either use enum members (e.g. `MyEnum.Option`), or use enum constructor
 (e.g. `MyEnum(42)` or `MyEnum(42, True)` when `MyEnum` does not have a member with value 42).
+-   BREAKING: disabled implicit conversion from Python objects implementing sequence protocol to
+.NET arrays when the target .NET type is `System.Object`. The conversion is still attempted when the
+target type is a `System.Array`.
 -   Sign Runtime DLL with a strong name
 -   Implement loading through `clr_loader` instead of the included `ClrModule`, enables
    support for .NET Core

diff --git a/src/runtime/Converter.cs b/src/runtime/Converter.cs
@@ -389,11 +389,6 @@ internal static bool ToManagedValue(BorrowedReference value, Type obType,
                    return true;
                }

-                if (Runtime.PySequence_Check(value))
-                {
-                    return ToArray(value, typeof(object[]), out result, setError);
-                }
-
                result = new PyObject(value);
                return true;
            }

diff --git a/tests/test_conversion.py b/tests/test_conversion.py
@@ -577,6 +577,13 @@ class Foo(object):
    ob.ObjectField = Foo
    assert ob.ObjectField == Foo

+    class PseudoSeq:
+        def __getitem__(self, idx):
+           return 0
+
+    ob.ObjectField = PseudoSeq()
+    assert ob.ObjectField.__class__.__name__ == "PseudoSeq"
+

 def test_null_conversion():
    """Test null conversion."""