You are working on the scrapy/scrapy repository. The source code is checked out at /testbed at commit…

You are working on the scrapy/scrapy repository. The source code is checked out at /testbed at commit…: a task in SWE-Lego-RL-2699 (Harbor dataset). Previously, EXCEPTIONS TO RETRY was an attribute of RetryMiddleware . This allows: - RetryMiddleware subclasses could access EXCEPTIONS TO RETRY via…

The task

Previously, `EXCEPTIONS_TO_RETRY` was an attribute of `RetryMiddleware`. This allows: - `RetryMiddleware` subclasses could access `EXCEPTIONS_TO_RETRY` via `cls.EXCEPTIONS_TO_RETRY`. - `RetryMiddleware` instances and instances of its subclasses could access `EXCEPTIONS_TO_RETRY` via `self.EXCEPTIONS_TO_RETRY`.

Part of Lego-X/Lego-RL-2699.