From 2ffa756bb521a42754164229dda97dd06030404d Mon Sep 17 00:00:00 2001
From: David Askari <23742909+ddaskari@users.noreply.github.com>
Date: Tue, 28 Jun 2022 14:29:42 +0200
Subject: [PATCH] Improve None as predicate for Python 2 ifilter (#8191)

---
 stdlib/@python2/itertools.pyi | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/stdlib/@python2/itertools.pyi b/stdlib/@python2/itertools.pyi
index 6509213e1..b07a911c3 100644
--- a/stdlib/@python2/itertools.pyi
+++ b/stdlib/@python2/itertools.pyi
@@ -22,7 +22,10 @@ class chain(Iterator[_T], Generic[_T]):
 
 def compress(data: Iterable[_T], selectors: Iterable[Any]) -> Iterator[_T]: ...
 def dropwhile(predicate: Callable[[_T], Any], iterable: Iterable[_T]) -> Iterator[_T]: ...
-def ifilter(predicate: Callable[[_T], Any] | None, iterable: Iterable[_T]) -> Iterator[_T]: ...
+@overload
+def ifilter(predicate: None, iterable: Iterable[_T | None]) -> Iterator[_T]: ...
+@overload
+def ifilter(predicate: Callable[[_T], Any], iterable: Iterable[_T]) -> Iterator[_T]: ...
 def ifilterfalse(predicate: Callable[[_T], Any] | None, iterable: Iterable[_T]) -> Iterator[_T]: ...
 @overload
 def groupby(iterable: Iterable[_T], key: None = ...) -> Iterator[tuple[_T, Iterator[_T]]]: ...