def handle(self, *args, **options):
if (not len(args) == 1) or (args[0] == u"help"):
self.stdout.write(u"Usage: {0}\n".format(self.args))
self.stdout.write(self.help)
else:
settings = get_project_settings()
settings.overrides["URLS"] = args[0]
crawler = Crawler(settings)
spider = GeneralSpider()
crawler.configure()
crawler.crawl(spider)
crawler.start()
log.start_from_crawler(crawler)
# stop the reactor once the spider has finished
crawler.signals.connect(reactor.stop, signal=signals.spider_closed)
try:
log.msg("Running reactor...")
reactor.run()
except KeyboardInterrupt:
stop_reactor()
finally:
log.msg("Reactor stopped")
log.msg("#" * 40)
def run_spider(spider):
"""Setups item signal and run the spider"""
# set up signal to catch items scraped
from scrapy import log
from scrapy import signals
from scrapy.xlib.pydispatch import dispatcher
def catch_exception(sender, failure, response, spider):
print "Response: %s [%s]" % (response.body, response.meta)
sys.stdout.flush()
dispatcher.connect(catch_exception, signal=signals.spider_error)
def catch_resp_dld(sender, response, request, spider):
print "Downloaded (%s) Response %s" % (response.status, response.url)
sys.stdout.flush()
dispatcher.connect(catch_resp_dld, signal=signals.response_downloaded)
# settings
with warnings.catch_warnings():
warnings.simplefilter("ignore")
from scrapy.conf import settings as default_settings
default_settings.overrides.update({
'LOG_ENABLED': False,
'LOG_LEVEL': 'CRITICAL',
'BOT_NAME': 'project',
})
# Update general settings with spider-specific ones
for k,v in spider.settings.iteritems():
if isinstance(v, dict) and k in default_settings.overrides:
default_settings.overrides[k].update(v)
else:
default_settings.overrides[k] = v
# set up crawler
from twisted.internet import reactor
from scrapy.crawler import Crawler
crawler = Crawler(default_settings)
crawler.signals.connect(reactor.stop, signal=signals.spider_closed)
crawler.install()
crawler.configure()
# schedule spider
crawler.crawl(spider)
log.start_from_crawler(crawler)
# start engine scrapy/twisted
crawler.start()
if not reactor.running:
reactor.run()
crawler.uninstall()
def run_spider(spider, settings=None):
"""Run a spider instance through the scrapy crawler.
This function is suitable for standalone scripts.
"""
crawler = CrawlerProcess(_build_settings(settings))
crawler.install()
crawler.configure()
log.start_from_crawler(crawler)
crawler.crawl(spider)
crawler.start()
def run_spider(spider, settings=None):
"""Run a spider instance through the scrapy crawler.
This function is suitable for standalone scripts.
"""
crawler = CrawlerProcess(_build_settings(settings))
crawler.install()
crawler.configure()
log.start_from_crawler(crawler)
crawler.crawl(spider)
crawler.start()
def run_retry_spider():
spider = retrySpider.RetrySpider()
settings = get_project_settings()
crawler = Crawler(settings)
crawler.signals.connect(reactor.stop, signal=signals.spider_closed)
crawler.configure()
crawler.crawl(spider)
crawler.start()
log.start_from_crawler(crawler)
reactor.run()
def start():
uid_list = map(lambda x: x.strip(), open('E:/PyCharm/CatPackages/resources/doc/user_500.txt').readlines())
spider = userSpider.UserSpider(uid_list=uid_list)
settings = get_project_settings()
crawler = Crawler(settings)
crawler.signals.connect(reactor.stop, signal=signals.spider_closed)
crawler.configure()
crawler.crawl(spider)
crawler.start()
log.start_from_crawler(crawler)
reactor.run()
def run_weibo_spider():
uid_list = read_uid_list('E:/PyCharm/CatPackages/resources/doc/user_500.txt')
print(uid_list)
spider = weiboSpider.WeiboSpider(uid_list, start='2015-03-15', end='2015-04-15')
settings = get_project_settings()
crawler = Crawler(settings)
crawler.signals.connect(reactor.stop, signal=signals.spider_closed)
crawler.configure()
crawler.crawl(spider)
crawler.start()
log.start_from_crawler(crawler)
reactor.run()
def _start_crawler(self):
if not self.crawlers or self.stopping:
return
name, crawler = self.crawlers.popitem()
self._active_crawler = crawler
sflo = log.start_from_crawler(crawler)
crawler.configure()
crawler.install()
crawler.signals.connect(crawler.uninstall, signals.engine_stopped)
if sflo:
crawler.signals.connect(sflo.stop, signals.engine_stopped)
crawler.signals.connect(self._check_done, signals.engine_stopped)
crawler.start()
return name, crawler
def _start_crawler(self):
if not self.crawlers or self.stopping:
return
name, crawler = self.crawlers.popitem()
self._active_crawler = crawler
sflo = log.start_from_crawler(crawler)
crawler.configure()
crawler.install()
crawler.signals.connect(crawler.uninstall, signals.engine_stopped)
if sflo:
crawler.signals.connect(sflo.stop, signals.engine_stopped)
crawler.signals.connect(self._check_done, signals.engine_stopped)
crawler.start()
return name, crawler
def _setup_crawler_logging(self, crawler):
log_observer = log.start_from_crawler(crawler)
if log_observer:
crawler.signals.connect(log_observer.stop, signals.engine_stopped)
def crawler(self):
if not self.configured:
log.start_from_crawler(self._crawler)
self._crawler.configure()
self.configured = True
return self._crawler
def _setup_crawler_logging(self, crawler):
log_observer = scrapy_log.start_from_crawler(crawler)
if log_observer:
monkey_patch_and_connect_log_observer(crawler, log_observer)
if self.log_observer:
monkey_patch_and_connect_log_observer(crawler, self.log_observer)
def crawler(self):
if not self.configured:
log.start_from_crawler(self._crawler)
self._crawler.configure()
self.configured = True
return self._crawler
def _create_logged_crawler(self, spidercls):
crawler = self._create_crawler(spidercls)
log_observer = log.start_from_crawler(crawler)
if log_observer:
crawler.signals.connect(log_observer.stop, signals.engine_stopped)
return crawler
def _setup_crawler_logging(self, crawler):
log_observer = scrapy_log.start_from_crawler(crawler)
if log_observer:
monkey_patch_and_connect_log_observer(crawler, log_observer)
if self.log_observer:
monkey_patch_and_connect_log_observer(crawler, self.log_observer)
#!/usr/bin/python2 from angellist import settings from scrapy import log from scrapy.crawler import CrawlerProcess from scrapy.settings import CrawlerSettings MySettings = CrawlerSettings(settings_module = settings) MyCrawler = CrawlerProcess(MySettings) log.start_from_crawler(MyCrawler) MyCrawler.configure() for spider_object in MyCrawler.spiders._spiders.itervalues(): MyCrawler.crawl(spider_object()) MyCrawler.start()
def _setup_crawler_logging(self, crawler):
log_observer = log.start_from_crawler(crawler)
if log_observer:
crawler.signals.connect(log_observer.stop, signals.engine_stopped)
def _create_logged_crawler(self, spidercls):
crawler = self._create_crawler(spidercls)
log_observer = log.start_from_crawler(crawler)
if log_observer:
crawler.signals.connect(log_observer.stop, signals.engine_stopped)
return crawler