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Exercise

Self Referencing is Classy

You probably have noticed that within the spider class, we always input the argument self in the start_requests and parse methods (just look in the sample code in this exercise!). This allows us to reference between methods within the class. That is, if we want to refer to the method parse within the start_requests method, we would need to write self.parse rather than just parse; what writing self does is tell the code: "Look in the same class as start_requests for a method called parse to use."

In this exercise you will get a chance to play with this "self referencing".

Instructions

100 XP
  • Fill in the required scrapy object into the class YourSpider needed to create the scrapy spider.
  • Pass the string argument "Hello World!" to fill in the blank in the start_requests method to use the print_msg method.