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Scrapy Save Statistics: Save statistics extension for Scrapy

Project description

Save statistics to mongo for analytics.

Install

The quick way:

pip install scrapy-save-statistics

Or install from GitHub:

pip install git+git://github.com/light4/scrapy-save-statistics.git@master

Or checkout the source and run:

python setup.py install

settings.py

Mongodb settings for save statistics, need a statistics database.

MONGO_HOST = "127.0.0.1"
MONGO_PORT = 27017
MONGO_DB = "myspider"
MONGO_STATISTICS = "statistics"

EXTENSIONS = {
    'scrapy_save_statistics.SaveStatistics': 100,
}

Spider

Spider must have statistics attributes and contains spider_url. We’ll save that info to mongodb.

class TestSpider(scrapy.Spider):
    name = "test"

    def __init__(self, name=None, **kwargs):
        super(TestSpider, self).__init__(name=name, **kwargs)
        self.statistics = []

    def parse(self, response):
        crawl_info = {'spider_url': spider_url,
                      'expected_crawl_num': expected_crawl_num,
                      'pages': total_page}
        self.statistics.append(crawl_info)

Project details


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