remove Deref implementations for old "gil refs" types

src/exceptions.rs

@@ -274,6 +274,7 @@ macro_rules! create_exception_type_object {
 macro_rules! impl_native_exception (
     ($name:ident, $exc_name:ident, $doc:expr, $layout:path $(, #checkfunction=$checkfunction:path)?) => (
         #[doc = $doc]
+        #[repr(transparent)]
         #[allow(clippy::upper_case_acronyms)]
         pub struct $name($crate::PyAny);
 
@@ -291,6 +292,7 @@ macro_rules! impl_windows_native_exception (
     ($name:ident, $exc_name:ident, $doc:expr, $layout:path) => (
         #[cfg(windows)]
         #[doc = $doc]
+        #[repr(transparent)]
         #[allow(clippy::upper_case_acronyms)]
         pub struct $name($crate::PyAny);
 

src/instance.rs

@@ -1744,7 +1744,7 @@ unsafe impl<T> crate::AsPyPointer for Py<T> {
 
 impl<T> std::convert::From<Py<T>> for PyObject
 where
-    T: AsRef<PyAny>,
+    T: DerefToPyAny,
 {
     #[inline]
     fn from(other: Py<T>) -> Self {
@@ -1754,7 +1754,7 @@ where
 
 impl<T> std::convert::From<Bound<'_, T>> for PyObject
 where
-    T: AsRef<PyAny>,
+    T: DerefToPyAny,
 {
     #[inline]
     fn from(other: Bound<'_, T>) -> Self {

src/types/mod.rs

@@ -118,22 +118,6 @@ pub trait DerefToPyAny {
 #[macro_export]
 macro_rules! pyobject_native_type_named (
     ($name:ty $(;$generics:ident)*) => {
-        impl<$($generics,)*> ::std::convert::AsRef<$crate::PyAny> for $name {
-            #[inline]
-            fn as_ref(&self) -> &$crate::PyAny {
-                &self.0
-            }
-        }
-
-        impl<$($generics,)*> ::std::ops::Deref for $name {
-            type Target = $crate::PyAny;
-
-            #[inline]
-            fn deref(&self) -> &$crate::PyAny {
-                &self.0
-            }
-        }
-
         impl $crate::types::DerefToPyAny for $name {}
     };
 );