Merge pull request #1723 from redapple/closespider-notconfigured

[MRG+1] Disable CloseSpider extension if no CLOSPIDER_* setting set

scrapy/extensions/closespider.py

@@ -9,6 +9,7 @@ from collections import defaultdict
 from twisted.internet import reactor
 
 from scrapy import signals
+from scrapy.exceptions import NotConfigured
 
 
 class CloseSpider(object):
@@ -23,6 +24,9 @@ class CloseSpider(object):
             'errorcount': crawler.settings.getint('CLOSESPIDER_ERRORCOUNT'),
             }
 
+        if not any(self.close_on.values()):
+            raise NotConfigured
+
         self.counter = defaultdict(int)
 
         if self.close_on.get('errorcount'):