From 4d13842ec6e246e90718c371b74503cee8d061ad Mon Sep 17 00:00:00 2001
From: hauntsaninja <hauntsaninja@gmail.com>
Date: Fri, 12 Aug 2022 18:48:15 -0700
Subject: [PATCH] fixups

---
 setup.cfg                         | 1 +
 src/pip/_internal/utils/hashes.py | 2 +-
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/setup.cfg b/setup.cfg
index bdc224e6d..dae2f21b1 100644
--- a/setup.cfg
+++ b/setup.cfg
@@ -40,6 +40,7 @@ ignore_missing_imports = True
 disallow_untyped_defs = True
 disallow_any_generics = True
 warn_unused_ignores = True
+no_implicit_optional = True
 
 [mypy-pip._vendor.*]
 ignore_errors = True
diff --git a/src/pip/_internal/utils/hashes.py b/src/pip/_internal/utils/hashes.py
index e79cfdb8c..76727306a 100644
--- a/src/pip/_internal/utils/hashes.py
+++ b/src/pip/_internal/utils/hashes.py
@@ -1,5 +1,5 @@
 import hashlib
-from typing import TYPE_CHECKING, BinaryIO, Dict, Iterable, List
+from typing import TYPE_CHECKING, BinaryIO, Dict, Iterable, List, Optional
 
 from pip._internal.exceptions import HashMismatch, HashMissing, InstallationError
 from pip._internal.utils.misc import read_chunks