PEP 827: Fix PartialTD example (python#4844)

msullivan · web-flow · commit cea3044b91f0 · 2026-03-03T16:59:39.000-08:00
Oops, it was not actually creating a NewTypedDict.
diff --git a/peps/pep-0827.rst b/peps/pep-0827.rst
@@ -1236,9 +1236,9 @@ We present implementations of a selection of them::
     # PartialTD<T>
     # Like Partial, but for TypedDicts: wraps all fields in NotRequired
     # rather than making them T | None.
-    type PartialTD[T] = typing.NewProtocol[
+    type PartialTD[T] = typing.NewTypedDict[
         *[
-            typing.Member[p.name, NotRequired[p.type], p.quals]
+            typing.Member[p.name, p.type, p.quals | Literal["NotRequired"]]
             for p in typing.Iter[typing.Attrs[T]]
         ]
     ]

Original file line number	Diff line number	Diff line change
`@@ -1236,9 +1236,9 @@ We present implementations of a selection of them::`
`1236`	`1236`	`# PartialTD<T>`
`1237`	`1237`	`# Like Partial, but for TypedDicts: wraps all fields in NotRequired`
`1238`	`1238`	`# rather than making them T \| None.`
`1239`		`- type PartialTD[T] = typing.NewProtocol[`
	`1239`	`+ type PartialTD[T] = typing.NewTypedDict[`
`1240`	`1240`	`*[`
`1241`		`- typing.Member[p.name, NotRequired[p.type], p.quals]`
	`1241`	`+ typing.Member[p.name, p.type, p.quals \| Literal["NotRequired"]]`
`1242`	`1242`	`for p in typing.Iter[typing.Attrs[T]]`
`1243`	`1243`	`]`
`1244`	`1244`	`]`