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我想在我的父級爬蟲類中設置以下內容,因爲這對每個孩子都應該是一樣的,我該怎麼做?如何在父類中基於cli kwargs覆蓋FEED_URI?
scrapy crawl spiderX -a full >> FEED_URI = /xx/spiderX_full
scrapy crawl spiderX -a quick >> FEED_URI = /xx/spiderX_quick
這是我到目前爲止有:
@classmethod
def update_settings(cls, settings):
settings_dict = cls.custom_settings or {}
feed_uri = path.join(settings.get('FEED_DIR'), '%s' % cls.name)
settings_dict['FEED_URI'] = feed_uri
settings.setdict(settings_dict, priority='spider')
我如何從這個函數訪問快速/全ARGS? 我試圖做這樣的:
def __new__(cls, full=False, quick=False, *a, **kw):
cls.full = full
cls.quick = quick
return super(MyCrawlSpider, cls).__new__(cls, *a, **kw)
但顯然update_settings運行之前它