Add overrides to all versions and fix 4.3 temp_override hang

- Copy gpu.state, bpy.path, gpu.types overrides to 4.0-4.5
- Add bpy.msgbus override for 4.5
- Skip temp_override probe on Blender < 4.4 (hangs on 4.3)
- Fix _is_getset_writable to use docstring hints instead of __set__ probe

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

introspect.py

@@ -1433,25 +1433,15 @@ def _fix_dunder_signatures(
 def _is_getset_writable(cls: type[object], attr_name: str) -> bool:
     """Test if a C getset_descriptor property is writable.
 
-    C getset_descriptors that have a setter implement __set__.
-    Those without a setter raise AttributeError on __set__ calls.
-    We test this by checking if __set__ raises on a dummy call.
+    We check the docstring for "(read-only)" or "(readonly)" hints.
+    If no hint is found, assume writable (most C getset_descriptors are).
     """
     descriptor = cls.__dict__.get(attr_name)
     if descriptor is None:
         return False
-    # If the descriptor doesn't implement __set__ at all, it's read-only
-    if not hasattr(descriptor, "__set__"):
+    doc = getattr(descriptor, "__doc__", "") or ""
+    if "read-only" in doc.lower() or "readonly" in doc.lower():
         return False
-    # Try calling __set__ with None — a writable descriptor will attempt
-    # the set (and fail on None), while a read-only one raises AttributeError
-    try:
-        descriptor.__set__(None, None)
-    except AttributeError:
-        return False
-    except Exception:
-        # Any other error means __set__ exists (it just didn't like our args)
-        return True
     return True
 
 
@@ -2720,20 +2710,22 @@ def introspect_rna_types() -> ModuleData:
     known = {s["name"] for s in structs}
     bpy = importlib.import_module("bpy")
     ctx = getattr(bpy, "context")
-    _HIDDEN_TYPE_PROBES: list[tuple[object, str]] = [
-        (ctx, "temp_override"),
-    ]
-    for obj, method_name in _HIDDEN_TYPE_PROBES:
-        func = getattr(obj, method_name, None)
-        if func is None or not callable(func):
-            continue
+    # Probe temp_override to discover ContextTempOverride.
+    # Skip on Blender < 4.4 where this call hangs.
+    bpy_app = importlib.import_module("bpy.app")
+    blender_version: tuple[int, ...] = getattr(bpy_app, "version", (0, 0, 0))
+    temp_override = ctx.__class__.__dict__.get("temp_override")
+    if (
+        temp_override is not None
+        and type(temp_override).__name__ == "method_descriptor"
+        and blender_version >= (4, 4, 0)
+    ):
         try:
-            result = func()
+            result = ctx.temp_override()
             result_cls = result.__class__
             if result_cls.__name__ not in known:
                 structs.append(introspect_class(result_cls, "bpy.types"))
                 known.add(result_cls.__name__)
-            # Clean up context manager if applicable
             exit_fn = getattr(result, "__exit__", None)
             if exit_fn is not None:
                 exit_fn(None, None, None)

overrides/4.0/bpy.path.json

@@ -0,0 +1,22 @@
+{
+  "abspath": {
+    "params": {
+      "path": "str | bytes"
+    }
+  },
+  "basename": {
+    "params": {
+      "path": "str | bytes"
+    }
+  },
+  "is_subdir": {
+    "params": {
+      "directory": "str | bytes"
+    }
+  },
+  "native_pathsep": {
+    "params": {
+      "path": "str | bytes"
+    }
+  }
+}

overrides/4.0/gpu.state.json

@@ -0,0 +1,8 @@
+{
+  "active_framebuffer_get": {
+    "return_type": "gpu.types.GPUFrameBuffer"
+  },
+  "viewport_get": {
+    "return_type": "tuple[int, int, int, int]"
+  }
+}

overrides/4.0/gpu.types.json

@@ -0,0 +1,7 @@
+{
+  "GPUShader.uniform_float": {
+    "params": {
+      "value": "float | int | Sequence[float] | mathutils.Matrix | mathutils.Vector | mathutils.Euler | mathutils.Quaternion | mathutils.Color"
+    }
+  }
+}

overrides/4.1/bpy.path.json

@@ -0,0 +1,22 @@
+{
+  "abspath": {
+    "params": {
+      "path": "str | bytes"
+    }
+  },
+  "basename": {
+    "params": {
+      "path": "str | bytes"
+    }
+  },
+  "is_subdir": {
+    "params": {
+      "directory": "str | bytes"
+    }
+  },
+  "native_pathsep": {
+    "params": {
+      "path": "str | bytes"
+    }
+  }
+}

overrides/4.1/gpu.state.json

@@ -0,0 +1,8 @@
+{
+  "active_framebuffer_get": {
+    "return_type": "gpu.types.GPUFrameBuffer"
+  },
+  "viewport_get": {
+    "return_type": "tuple[int, int, int, int]"
+  }
+}

overrides/4.1/gpu.types.json

@@ -0,0 +1,7 @@
+{
+  "GPUShader.uniform_float": {
+    "params": {
+      "value": "float | int | Sequence[float] | mathutils.Matrix | mathutils.Vector | mathutils.Euler | mathutils.Quaternion | mathutils.Color"
+    }
+  }
+}

overrides/4.2/bpy.path.json

@@ -0,0 +1,22 @@
+{
+  "abspath": {
+    "params": {
+      "path": "str | bytes"
+    }
+  },
+  "basename": {
+    "params": {
+      "path": "str | bytes"
+    }
+  },
+  "is_subdir": {
+    "params": {
+      "directory": "str | bytes"
+    }
+  },
+  "native_pathsep": {
+    "params": {
+      "path": "str | bytes"
+    }
+  }
+}

overrides/4.2/gpu.state.json

@@ -0,0 +1,8 @@
+{
+  "active_framebuffer_get": {
+    "return_type": "gpu.types.GPUFrameBuffer"
+  },
+  "viewport_get": {
+    "return_type": "tuple[int, int, int, int]"
+  }
+}

overrides/4.2/gpu.types.json

@@ -0,0 +1,7 @@
+{
+  "GPUShader.uniform_float": {
+    "params": {
+      "value": "float | int | Sequence[float] | mathutils.Matrix | mathutils.Vector | mathutils.Euler | mathutils.Quaternion | mathutils.Color"
+    }
+  }
+}

overrides/4.3/bpy.path.json

@@ -0,0 +1,22 @@
+{
+  "abspath": {
+    "params": {
+      "path": "str | bytes"
+    }
+  },
+  "basename": {
+    "params": {
+      "path": "str | bytes"
+    }
+  },
+  "is_subdir": {
+    "params": {
+      "directory": "str | bytes"
+    }
+  },
+  "native_pathsep": {
+    "params": {
+      "path": "str | bytes"
+    }
+  }
+}

overrides/4.3/gpu.state.json

@@ -0,0 +1,8 @@
+{
+  "active_framebuffer_get": {
+    "return_type": "gpu.types.GPUFrameBuffer"
+  },
+  "viewport_get": {
+    "return_type": "tuple[int, int, int, int]"
+  }
+}

overrides/4.3/gpu.types.json

@@ -0,0 +1,7 @@
+{
+  "GPUShader.uniform_float": {
+    "params": {
+      "value": "float | int | Sequence[float] | mathutils.Matrix | mathutils.Vector | mathutils.Euler | mathutils.Quaternion | mathutils.Color"
+    }
+  }
+}

overrides/4.4/bpy.path.json

@@ -0,0 +1,22 @@
+{
+  "abspath": {
+    "params": {
+      "path": "str | bytes"
+    }
+  },
+  "basename": {
+    "params": {
+      "path": "str | bytes"
+    }
+  },
+  "is_subdir": {
+    "params": {
+      "directory": "str | bytes"
+    }
+  },
+  "native_pathsep": {
+    "params": {
+      "path": "str | bytes"
+    }
+  }
+}

overrides/4.4/gpu.state.json

@@ -0,0 +1,8 @@
+{
+  "active_framebuffer_get": {
+    "return_type": "gpu.types.GPUFrameBuffer"
+  },
+  "viewport_get": {
+    "return_type": "tuple[int, int, int, int]"
+  }
+}

overrides/4.4/gpu.types.json

@@ -0,0 +1,7 @@
+{
+  "GPUShader.uniform_float": {
+    "params": {
+      "value": "float | int | Sequence[float] | mathutils.Matrix | mathutils.Vector | mathutils.Euler | mathutils.Quaternion | mathutils.Color"
+    }
+  }
+}

overrides/4.5/bpy.path.json

@@ -0,0 +1,22 @@
+{
+  "abspath": {
+    "params": {
+      "path": "str | bytes"
+    }
+  },
+  "basename": {
+    "params": {
+      "path": "str | bytes"
+    }
+  },
+  "is_subdir": {
+    "params": {
+      "directory": "str | bytes"
+    }
+  },
+  "native_pathsep": {
+    "params": {
+      "path": "str | bytes"
+    }
+  }
+}

overrides/4.5/gpu.state.json

@@ -0,0 +1,8 @@
+{
+  "active_framebuffer_get": {
+    "return_type": "gpu.types.GPUFrameBuffer"
+  },
+  "viewport_get": {
+    "return_type": "tuple[int, int, int, int]"
+  }
+}

overrides/4.5/gpu.types.json

@@ -0,0 +1,7 @@
+{
+  "GPUShader.uniform_float": {
+    "params": {
+      "value": "float | int | Sequence[float] | mathutils.Matrix | mathutils.Vector | mathutils.Euler | mathutils.Quaternion | mathutils.Color"
+    }
+  }
+}