Support introspecting Pydantic model attributes

pyproject.toml

@@ -41,6 +41,7 @@ ruff = "^0.5.2"
 pytest = "^7.4.2"
 pytest-cov = "^4.1.0"
 pytest-mock = "^3.11.1"
+pydantic = "^2.9"
 
 [tool.coverage.paths]
 source = ["src"]

src/pykka/_introspection.py

@@ -34,7 +34,9 @@ def introspect_attrs(
 
         attr = get_attr_from_parent(root, attr_path)
 
-        if attr == proxy:
+        # Keep `proxy` first to use it's `__eq__` method instead of `attr`'s
+        # unknown implementation.
+        if proxy == attr:
             logger.warning(
                 f"{root} attribute {'.'.join(attr_path)!r} "
                 f"is a proxy to itself. "

tests/proxy/test_proxy.py

@@ -2,6 +2,7 @@
 
 from typing import TYPE_CHECKING
 
+import pydantic
 import pytest
 
 import pykka
@@ -18,10 +19,17 @@ class NestedObject:
     pass
 
 
+class PydanticModel(pydantic.BaseModel):
+    foo: str = "bar"
+
+
 class ActorForProxying(Actor):
     a_nested_object = pykka.traversable(NestedObject())
     a_class_attr = "class_attr"
 
+    # Include a pydantic model to test that it doesn't break introspection.
+    a_pydantic_model = PydanticModel()
+
     def __init__(self) -> None:
         super().__init__()
         self.an_instance_attr = "an_instance_attr"
@@ -108,6 +116,7 @@ def test_dir_on_proxy_lists_attributes_of_the_actor(
     assert "a_class_attr" in result
     assert "an_instance_attr" in result
     assert "a_method" in result
+    assert "a_pydantic_model" in result
 
 
 def test_dir_on_proxy_lists_private_attributes_of_the_proxy(