Passing arguments to process.crawl in Scrapy python

Question

I would like to get the same result as this command line : scrapy crawl linkedin_anonymous -a first=James -a last=Bond -o output.json

My script is as follows :

import scrapy from linkedin_anonymous_spider import LinkedInAnonymousSpider from scrapy.crawler import CrawlerProcess from scrapy.utils.project import get_project_settings  spider = LinkedInAnonymousSpider(None, "James", "Bond") process = CrawlerProcess(get_project_settings()) process.crawl(spider) ## <-------------- (1) process.start() 

I found out that process.crawl() in (1) is creating another LinkedInAnonymousSpider where first and last are None (printed in (2)), if so, then there is no point of creating the object spider and how is it possible to pass the arguments first and last to process.crawl()?

linkedin_anonymous :

from logging import INFO  import scrapy  class LinkedInAnonymousSpider(scrapy.Spider):     name = "linkedin_anonymous"     allowed_domains = ["linkedin.com"]     start_urls = []      base_url = "https://www.linkedin.com/pub/dir/?first=%s&last=%s&search=Search"      def __init__(self, input = None, first= None, last=None):         self.input = input  # source file name         self.first = first         self.last = last      def start_requests(self):         print self.first ## <------------- (2)         if self.first and self.last: # taking input from command line parameters                 url = self.base_url % (self.first, self.last)                 yield self.make_requests_from_url(url)      def parse(self, response): . . . 

Answer 1

pass the spider arguments on the process.crawl method:

process.crawl(spider, input='inputargument', first='James', last='Bond') 

Answer 2

You can do it the easy way:

from scrapy import cmdline  cmdline.execute("scrapy crawl linkedin_anonymous -a first=James -a last=Bond -o output.json".split())