nasdaqomx.py 文件源码

def start_requests(self):

        # used for checking that a ticker isn't downloaded twice
        self.requested_tickers = set()

        for category in self.categories:
            self.logger.info('POST request for category "' + category['name'] + '"')

            # return a POST request for getting the index list in this category group
            yield FormRequest(url="https://indexes.nasdaqomx.com/Index/DirectoryData",
                              formdata={'categoryID': str(category['id'])},
                              meta={'exchange': category['name']},
                              callback=self.parse_categories)