Remove usage of AsPyPointer in IntoPy<PyObject> trait implementation

newsfragments/3393.changed.md

@@ -0,0 +1 @@
+Replace blanket `impl IntoPy<PyObject> for &T where T: AsPyPointer` with implementations of `impl IntoPy<PyObject>` for `&PyAny`, `&T where T: AsRef<PyAny>`, and `&Py<T>`.

src/conversion.rs

@@ -276,13 +276,20 @@ impl IntoPy<PyObject> for () {
     }
 }
 
+impl IntoPy<PyObject> for &'_ PyAny {
+    #[inline]
+    fn into_py(self, py: Python<'_>) -> PyObject {
+        unsafe { PyObject::from_borrowed_ptr(py, self.as_ptr()) }
+    }
+}
+
 impl<T> IntoPy<PyObject> for &'_ T
 where
-    T: AsPyPointer,
+    T: AsRef<PyAny>,
 {
     #[inline]
     fn into_py(self, py: Python<'_>) -> PyObject {
-        unsafe { PyObject::from_borrowed_ptr(py, self.as_ptr()) }
+        unsafe { PyObject::from_borrowed_ptr(py, self.as_ref().as_ptr()) }
     }
 }
 

src/instance.rs

@@ -925,6 +925,13 @@ impl<T> IntoPy<PyObject> for Py<T> {
     }
 }
 
+impl<T> IntoPy<PyObject> for &'_ Py<T> {
+    #[inline]
+    fn into_py(self, py: Python<'_>) -> PyObject {
+        unsafe { PyObject::from_borrowed_ptr(py, self.as_ptr()) }
+    }
+}
+
 impl<T> crate::AsPyPointer for Py<T> {
     /// Gets the underlying FFI pointer, returns a borrowed pointer.
     #[inline]