PEP 589: Fix typo - index 'y' needs quotes (#2438)

stroxler · web-flow · commit cc45dded1b2d · 2022-03-16T18:23:59.000-07:00
diff --git a/pep-0589.rst b/pep-0589.rst
@@ -436,7 +436,7 @@ Discussion:
           y: str
 
        def f(a: A) -> None:
-           a[y] = 1
+           a['y'] = 1
 
        def g(b: B) -> None:
            f(b)  # Type check error: 'B' incompatible with 'A'
