本文整理汇总了Python中frontera.contrib.scrapy.schedulers.frontier.FronteraScheduler.next_request方法的典型用法代码示例。如果您正苦于以下问题：Python FronteraScheduler.next_request方法的具体用法？Python FronteraScheduler.next_request怎么用？Python FronteraScheduler.next_request使用的例子？那么, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类frontera.contrib.scrapy.schedulers.frontier.FronteraScheduler的用法示例。
在下文中一共展示了FronteraScheduler.next_request方法的4个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的Python代码示例。
示例1: test_close
# 需要导入模块: from frontera.contrib.scrapy.schedulers.frontier import FronteraScheduler [as 别名]
# 或者: from frontera.contrib.scrapy.schedulers.frontier.FronteraScheduler import next_request [as 别名]
def test_close(self):
crawler = FakeCrawler()
fs = FronteraScheduler(crawler, manager=FakeFrontierManager)
fs.open(Spider)
fs.frontier.manager.put_requests([fr1, fr2, fr3])
fs.next_request()
fs.frontier.manager.iteration = 5
fs.close('reason')
assert fs.frontier.manager._stopped is True
assert fs.stats_manager.stats.get_value('frontera/pending_requests_count') == 2
assert fs.stats_manager.stats.get_value('frontera/iterations') == 5示例2: test_next_request_manager_finished
# 需要导入模块: from frontera.contrib.scrapy.schedulers.frontier import FronteraScheduler [as 别名]
# 或者: from frontera.contrib.scrapy.schedulers.frontier.FronteraScheduler import next_request [as 别名]
def test_next_request_manager_finished(self):
crawler = FakeCrawler()
fs = FronteraScheduler(crawler, manager=FakeFrontierManager)
fs.open(Spider)
fs.frontier.manager.put_requests([fr1])
fs.frontier.manager.finished = True
assert fs.next_request() is None
assert fs.stats_manager.stats.get_value('frontera/returned_requests_count') is None示例3: test_next_request
# 需要导入模块: from frontera.contrib.scrapy.schedulers.frontier import FronteraScheduler [as 别名]
# 或者: from frontera.contrib.scrapy.schedulers.frontier.FronteraScheduler import next_request [as 别名]
def test_next_request(self):
crawler = FakeCrawler()
fs = FronteraScheduler(crawler, manager=FakeFrontierManager)
fs.open(Spider)
fs.frontier.manager.put_requests([fr1, fr2, fr3])
requests = [fs.next_request() for _ in range(3)]
assert set([request.url for request in requests]) == set([fr1.url, fr2.url, fr3.url])
assert all([isinstance(request, Request) for request in requests])
assert fs.stats_manager.stats.get_value('frontera/returned_requests_count') == 3示例4: test_next_request_overused_keys_info
# 需要导入模块: from frontera.contrib.scrapy.schedulers.frontier import FronteraScheduler [as 别名]
# 或者: from frontera.contrib.scrapy.schedulers.frontier.FronteraScheduler import next_request [as 别名]
def test_next_request_overused_keys_info(self):
settings = Settings()
settings['CONCURRENT_REQUESTS_PER_DOMAIN'] = 0
settings['CONCURRENT_REQUESTS_PER_IP'] = 5
crawler = FakeCrawler(settings)
# the keys in the slot_dict are ip's, the first value in the pair is the
# slot.active list(only it's length is needed) and the second value is slot.concurrency.
slot_dict = {'1.2.3': ([0]*3, 1), '2.1.3': ([0]*30, 2), '3.2.2': ([0]*5, 1), '4.1.3': ([0]*110, 20)}
crawler.set_slots(slot_dict)
fs = FronteraScheduler(crawler, manager=FakeFrontierManager)
fs.open(Spider)
fs.frontier.manager.put_requests([fr1])
request = fs.next_request()
assert request.url == fr1.url
assert isinstance(request, Request)
assert fs.frontier.manager.get_next_requests_kwargs[0]['key_type'] == 'ip'
assert set(fs.frontier.manager.get_next_requests_kwargs[0]['overused_keys']) == set(['2.1.3', '4.1.3'])
assert fs.stats_manager.stats.get_value('frontera/returned_requests_count') == 1