How to clear cookies in scrapy?

问题

By default, scrapy stores and passes cookies along requests. But how do I access or clear the stored cookies at certain point in the spider? Thanks?

回答1:

to set cookies to a specific request use request cookies field for example from docs:

request_with_cookies = Request(url="http://www.example.com",
                               cookies={'currency': 'USD', 'country': 'UY'})

do access request cookies:

request.headers.getlist('Cookie')

response cookies:

response.headers.getlist('Set-Cookie')

for more details see cookies middleware

回答2:

one way to avoid the cookies on your next requests would be to use the meta argument dont_merge_cookies:

 Request(url, meta={'dont_merge_cookies': True})

回答3:

Not quite clearing them, but setting COOKIES_ENABLED to false in scrapy settings will prevent them from being used.

来源：https://stackoverflow.com/questions/21924220/how-to-clear-cookies-in-scrapy