Ausgabe der neuen DB Einträge

venv/lib/python3.9/site-packages/scrapy/extensions/spiderstate.py

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+import os
+import pickle
+
+from scrapy import signals
+from scrapy.exceptions import NotConfigured
+from scrapy.utils.job import job_dir
+
+
+class SpiderState:
+    """Store and load spider state during a scraping job"""
+
+    def __init__(self, jobdir=None):
+        self.jobdir = jobdir
+
+    @classmethod
+    def from_crawler(cls, crawler):
+        jobdir = job_dir(crawler.settings)
+        if not jobdir:
+            raise NotConfigured
+
+        obj = cls(jobdir)
+        crawler.signals.connect(obj.spider_closed, signal=signals.spider_closed)
+        crawler.signals.connect(obj.spider_opened, signal=signals.spider_opened)
+        return obj
+
+    def spider_closed(self, spider):
+        if self.jobdir:
+            with open(self.statefn, 'wb') as f:
+                pickle.dump(spider.state, f, protocol=4)
+
+    def spider_opened(self, spider):
+        if self.jobdir and os.path.exists(self.statefn):
+            with open(self.statefn, 'rb') as f:
+                spider.state = pickle.load(f)
+        else:
+            spider.state = {}
+
+    @property
+    def statefn(self):
+        return os.path.join(self.jobdir, 'spider.state')