Python 3.10.0a0 (GH-20198)

diff --git a/Doc/tutorial/stdlib2.rst b/Doc/tutorial/stdlib2.rst
index 2994828..298034d 100644
--- a/Doc/tutorial/stdlib2.rst
+++ b/Doc/tutorial/stdlib2.rst
@@ -278,7 +278,7 @@
    Traceback (most recent call last):
      File "<stdin>", line 1, in <module>
        d['primary']                # entry was automatically removed
-     File "C:/python39/lib/weakref.py", line 46, in __getitem__
+     File "C:/python310/lib/weakref.py", line 46, in __getitem__
        o = self.data[key]()
    KeyError: 'primary'