From 726680c7125ab3a6622b12e25d45dbfedc5a39b3 Mon Sep 17 00:00:00 2001
From: Matthew Donoughe <mdonoughe@pm.me>
Date: Fri, 21 Oct 2022 20:32:13 -0400
Subject: [PATCH] change crawler_process to optional

---
 scrapy/commands/__init__.py  | 5 +++--
 scrapy/commands/genspider.py | 4 ++++
 2 files changed, 7 insertions(+), 2 deletions(-)

diff --git a/scrapy/commands/__init__.py b/scrapy/commands/__init__.py
index 2c205a712..1f088041c 100644
--- a/scrapy/commands/__init__.py
+++ b/scrapy/commands/__init__.py
@@ -4,9 +4,10 @@ Base class for Scrapy commands
 import os
 import argparse
 from pathlib import Path
-from typing import Any, Dict
+from typing import Any, Dict, Optional
 
 from twisted.python import failure
+from scrapy.crawler import CrawlerProcess
 
 from scrapy.utils.conf import arglist_to_dict, feed_process_params_from_cli
 from scrapy.exceptions import UsageError
@@ -15,7 +16,7 @@ from scrapy.exceptions import UsageError
 class ScrapyCommand:
 
     requires_project = False
-    crawler_process: Any = None
+    crawler_process: Optional[CrawlerProcess] = None
 
     # default settings to be used for this command instead of global defaults
     default_settings: Dict[str, Any] = {}
diff --git a/scrapy/commands/genspider.py b/scrapy/commands/genspider.py
index facb593da..ed9660252 100644
--- a/scrapy/commands/genspider.py
+++ b/scrapy/commands/genspider.py
@@ -133,6 +133,10 @@ class Command(ScrapyCommand):
                 return True
             return False
 
+        assert (
+            self.crawler_process is not None
+        ), "crawler_process must be set before calling run"
+
         try:
             spidercls = self.crawler_process.spider_loader.load(name)
         except KeyError: