Ausgabe der neuen DB Einträge

venv/lib/python3.9/site-packages/scrapy/signalmanager.py

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+from pydispatch import dispatcher
+from scrapy.utils import signal as _signal
+
+
+class SignalManager:
+
+    def __init__(self, sender=dispatcher.Anonymous):
+        self.sender = sender
+
+    def connect(self, receiver, signal, **kwargs):
+        """
+        Connect a receiver function to a signal.
+
+        The signal can be any object, although Scrapy comes with some
+        predefined signals that are documented in the :ref:`topics-signals`
+        section.
+
+        :param receiver: the function to be connected
+        :type receiver: collections.abc.Callable
+
+        :param signal: the signal to connect to
+        :type signal: object
+        """
+        kwargs.setdefault('sender', self.sender)
+        return dispatcher.connect(receiver, signal, **kwargs)
+
+    def disconnect(self, receiver, signal, **kwargs):
+        """
+        Disconnect a receiver function from a signal. This has the
+        opposite effect of the :meth:`connect` method, and the arguments
+        are the same.
+        """
+        kwargs.setdefault('sender', self.sender)
+        return dispatcher.disconnect(receiver, signal, **kwargs)
+
+    def send_catch_log(self, signal, **kwargs):
+        """
+        Send a signal, catch exceptions and log them.
+
+        The keyword arguments are passed to the signal handlers (connected
+        through the :meth:`connect` method).
+        """
+        kwargs.setdefault('sender', self.sender)
+        return _signal.send_catch_log(signal, **kwargs)
+
+    def send_catch_log_deferred(self, signal, **kwargs):
+        """
+        Like :meth:`send_catch_log` but supports returning
+        :class:`~twisted.internet.defer.Deferred` objects from signal handlers.
+
+        Returns a Deferred that gets fired once all signal handlers
+        deferreds were fired. Send a signal, catch exceptions and log them.
+
+        The keyword arguments are passed to the signal handlers (connected
+        through the :meth:`connect` method).
+        """
+        kwargs.setdefault('sender', self.sender)
+        return _signal.send_catch_log_deferred(signal, **kwargs)
+
+    def disconnect_all(self, signal, **kwargs):
+        """
+        Disconnect all receivers from the given signal.
+
+        :param signal: the signal to disconnect from
+        :type signal: object
+        """
+        kwargs.setdefault('sender', self.sender)
+        return _signal.disconnect_all(signal, **kwargs)