SignalManager tests

test5.py

from scrapy import signals
from scrapy.http import Request
from scrapy.spider import BaseSpider
from scrapy.signalmanager import SignalManager

class Test5(BaseSpider):
    """ New SignalManager API test, doesn't work
    """
    name = "test5"
    start_urls = ["http://httpbin.org/status/200"]

    def __init__(self, *args, **kwargs):
        super(Test5, self).__init__(*args, **kwargs)
        sm = SignalManager(self)
        """ I also tried to iniatialize SignalManager this way:
            sm = SignalManager() so dispatcher.Anonymous should be used
            as a sender, but this didn't help either.
        """
        sm.connect(self.idle_handler, signal=signals.spider_idle)

    def parse(self, response):
        self.log("Parse")

    def idle_handler(self, spider):
        self.log("Idle handler")

test5_1.py

from scrapy import signals
from scrapy.http import Request
from scrapy.spider import BaseSpider
from scrapy.xlib.pydispatch import dispatcher

class Test5_1(BaseSpider):
    """ Old approach for signals in Scrapy
    """
    name = "test5_1"
    start_urls = ["http://httpbin.org/status/200"]

    def __init__(self, *args, **kwargs):
        super(Test5_1, self).__init__(*args, **kwargs)
        dispatcher.connect(self.idle_handler, signal=signals.spider_idle)

    def parse(self, response):
        self.log("Parse")

    def idle_handler(self, spider):
        self.log("Idle handler")

test5_2.py

from scrapy import signals
from scrapy.http import Request
from scrapy.spider import BaseSpider
from scrapy.xlib.pydispatch import dispatcher
from scrapy.signalmanager import SignalManager

class Test5_2(BaseSpider):
    """ Worked example for new SignalManager API
    """
    name = "test5_2"
    start_urls = ["http://httpbin.org/status/200"]

    def __init__(self, *args, **kwargs):
        super(Test5_2, self).__init__(*args, **kwargs)
        SignalManager(dispatcher.Any).connect(self.idle_handler, signal=signals.spider_idle)

    def parse(self, response):
        self.log("Parse")

    def idle_handler(self, spider):
        self.log("Idle handler")

Thanks for this. The documentation (and the web) doesnt help to use signals - you did it!

Thank you! Signals connect sucks on the website indeed!

thanks, you saved my day !! nothing in the web, I confirm ! thanks again mate