Deprecate Spider.log().

docs/topics/spiders.rst

@@ -208,12 +208,6 @@ scrapy.Spider
        :param response: the response to parse
        :type response: :class:`~scrapy.http.Response`
 
-   .. method:: log(message, [level])
-
-       Wrapper that sends a log message through the Spider's :attr:`logger`,
-       kept for backward compatibility. For more information see
-       :ref:`topics-logging-from-spiders`.
-
    .. method:: closed(reason)
 
        Called when the spider closes. This method provides a shortcut to

scrapy/spiders/__init__.py

@@ -7,9 +7,11 @@ See documentation in docs/topics/spiders.rst
 from __future__ import annotations
 
 import logging
+import warnings
 from typing import TYPE_CHECKING, Any, cast
 
 from scrapy import signals
+from scrapy.exceptions import ScrapyDeprecationWarning
 from scrapy.http import Request, Response
 from scrapy.utils.trackref import object_ref
 from scrapy.utils.url import url_is_from_spider
@@ -66,6 +68,11 @@ class Spider(object_ref):
         can use it directly (e.g. Spider.logger.info('msg')) or use any other
         Python logger too.
         """
+        warnings.warn(
+            "Spider.log() is deprecated, use methods of Spider.logger instead.",
+            ScrapyDeprecationWarning,
+            stacklevel=2,
+        )
         self.logger.log(level, message, **kw)
 
     @classmethod

tests/test_spider.py

@@ -8,6 +8,7 @@ from testfixtures import LogCapture
 
 from scrapy import signals
 from scrapy.crawler import Crawler
+from scrapy.exceptions import ScrapyDeprecationWarning
 from scrapy.http import Response, TextResponse, XmlResponse
 from scrapy.settings import Settings
 from scrapy.spiders import CSVFeedSpider, Spider, XMLFeedSpider
@@ -116,7 +117,12 @@ class TestSpider:
 
     def test_log(self):
         spider = self.spider_class("example.com")
-        with mock.patch("scrapy.spiders.Spider.logger") as mock_logger:
+        with (
+            mock.patch("scrapy.spiders.Spider.logger") as mock_logger,
+            pytest.warns(
+                ScrapyDeprecationWarning, match=r"Spider.log\(\) is deprecated"
+            ),
+        ):
             spider.log("test log msg", "INFO")
         mock_logger.log.assert_called_once_with("INFO", "test log msg")