From 5badd0787ea871bb3a88bbd3f8d65110f8e3a785 Mon Sep 17 00:00:00 2001
From: Andrey Rakhmatullin <wrar@wrar.name>
Date: Sat, 11 Jul 2026 22:27:33 +0500
Subject: [PATCH] Remove verifyClass() from get_spider_loader().

---
 scrapy/spiderloader.py |  2 --
 tests/test_crawler.py  | 24 ------------------------
 2 files changed, 26 deletions(-)

diff --git a/scrapy/spiderloader.py b/scrapy/spiderloader.py
index 8c980fd46..67c2b5525 100644
--- a/scrapy/spiderloader.py
+++ b/scrapy/spiderloader.py
@@ -6,7 +6,6 @@ from collections import defaultdict
 from typing import TYPE_CHECKING, Protocol, cast
 
 from zope.interface import implementer
-from zope.interface.verify import verifyClass
 
 from scrapy.interfaces import ISpiderLoader
 from scrapy.utils.misc import load_object, walk_modules_iter
@@ -26,7 +25,6 @@ def get_spider_loader(settings: BaseSettings) -> SpiderLoaderProtocol:
     """Get SpiderLoader instance from settings"""
     cls_path = settings.get("SPIDER_LOADER_CLASS")
     loader_cls = load_object(cls_path)
-    verifyClass(ISpiderLoader, loader_cls)
     return cast("SpiderLoaderProtocol", loader_cls.from_settings(settings.frozencopy()))
 
 
diff --git a/tests/test_crawler.py b/tests/test_crawler.py
index 6a1eea027..5106c890e 100644
--- a/tests/test_crawler.py
+++ b/tests/test_crawler.py
@@ -10,7 +10,6 @@ from typing import TYPE_CHECKING, Any, ClassVar
 from unittest.mock import MagicMock
 
 import pytest
-from zope.interface.exceptions import MultipleInvalid
 
 import scrapy
 from scrapy import Spider
@@ -586,21 +585,7 @@ class TestCrawlerLogging:
         assert "debug message" in logged
 
 
-class SpiderLoaderWithWrongInterface:
-    def unneeded_method(self) -> None:
-        pass
-
-
 class TestCrawlerRunner(TestBaseCrawler):
-    def test_spider_manager_verify_interface(self) -> None:
-        settings = Settings(
-            {
-                "SPIDER_LOADER_CLASS": SpiderLoaderWithWrongInterface,
-            }
-        )
-        with pytest.raises(MultipleInvalid):
-            CrawlerRunner(settings)
-
     def test_crawler_runner_accepts_dict(self) -> None:
         runner = CrawlerRunner({"foo": "bar"})
         assert runner.settings["foo"] == "bar"
@@ -612,15 +597,6 @@ class TestCrawlerRunner(TestBaseCrawler):
 
 
 class TestAsyncCrawlerRunner(TestBaseCrawler):
-    def test_spider_manager_verify_interface(self) -> None:
-        settings = Settings(
-            {
-                "SPIDER_LOADER_CLASS": SpiderLoaderWithWrongInterface,
-            }
-        )
-        with pytest.raises(MultipleInvalid):
-            AsyncCrawlerRunner(settings)
-
     def test_crawler_runner_accepts_dict(self) -> None:
         runner = AsyncCrawlerRunner({"foo": "bar"})
         assert runner.settings["foo"] == "bar"