Update pep for dir behavior

Author: DinoV

peps/pep-0810.rst

@@ -440,8 +440,9 @@ referenced the module. It **only** resolves the lazy object being accessed.
 
 Accessing a lazy object (from a global variable or a module attribute) reifies
 the object. Accessing a module's ``__dict__`` reifies **all** lazy objects in
-that module. Operations that indirectly access ``__dict__`` (such as
-:func:`dir`) also trigger this behavior.
+that module. Calling ``dir()`` at the global scope will not reify the globals
+and calling ``dir(mod)`` will be special cased in ``mod.__dir__`` avoid
+reification as well.
 
 Example using ``__dict__`` from external code:
 
@@ -1329,9 +1330,8 @@ How do lazy imports interact with ``dir()``, ``getattr()``, and module introspec
 -------------------------------------------------------------------------------------
 
 Accessing lazy imports through normal attribute access or ``getattr()``
-will trigger reification. Calling ``dir()`` on a module will reify all lazy
-imports in that module to ensure the directory listing is complete. This is
-similar to accessing ``mod.__dict__``.
+will trigger reification of the accessed attribute. Calling ``dir()`` on a
+module will be special cased in ``mod.__dir__`` to avoid reification.
 
 .. code-block:: python
 
@@ -1343,7 +1343,6 @@ similar to accessing ``mod.__dict__``.
   # Any of these trigger reification:
   dumps_func = json.dumps
   dumps_func = getattr(json, 'dumps')
-  dir(json)
   # Now json is in sys.modules
 
 Do lazy imports work with circular imports?