Make PyValue, PyObjectPayload Send + Sync

Author: palaviv

vm/src/pyobject.rs

@@ -1193,7 +1193,7 @@ impl PyObject<dyn PyObjectPayload> {
     }
 }
 
-pub trait PyValue: fmt::Debug + Sized + 'static {
+pub trait PyValue: fmt::Debug + Send + Sync + Sized + 'static {
     const HAVE_DICT: bool = false;
 
     fn class(vm: &VirtualMachine) -> PyClassRef;
@@ -1225,12 +1225,8 @@ pub trait PyValue: fmt::Debug + Sized + 'static {
 
 // Temporary trait to follow the progress of threading conversion
 pub trait ThreadSafe: Send + Sync {}
-// Temporary hack to help with converting object that contain PyObjectRef to ThreadSafe.
-// Should be removed before threading is allowed. Do not try this at home!!!
-unsafe impl<T: ?Sized + PyObjectPayload> Send for PyObject<T> {}
-unsafe impl<T: ?Sized + PyObjectPayload> Sync for PyObject<T> {}
 
-pub trait PyObjectPayload: Any + fmt::Debug + 'static {
+pub trait PyObjectPayload: Any + fmt::Debug + Send + Sync + 'static {
     fn as_any(&self) -> &dyn Any;
 }