From e798e99f27ad16dfb2e5fe3aec87ba9c1d8e5f04 Mon Sep 17 00:00:00 2001
From: Adrian Chaves <adrian@zyte.com>
Date: Mon, 22 Jun 2026 10:37:23 +0200
Subject: [PATCH] Solve typing issues

---
 scrapy/responsetypes.py | 1 +
 1 file changed, 1 insertion(+)

diff --git a/scrapy/responsetypes.py b/scrapy/responsetypes.py
index 27a708690..29e9b6bb7 100644
--- a/scrapy/responsetypes.py
+++ b/scrapy/responsetypes.py
@@ -40,6 +40,7 @@ class ResponseTypes:
         self.classes: dict[str, type[Response]] = {}
         self.mimetypes: MimeTypes = MimeTypes()
         mimedata = get_data("scrapy", "mime.types")
+        assert mimedata is not None
         self.mimetypes.readfp(StringIO(mimedata.decode("utf8")))
         for mimetype, cls in self.CLASSES.items():
             self.classes[mimetype] = load_object(cls)