First commit

euler_parser/spiders/euler_spider.py

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+# -*- coding: utf-8 -*-
+
+import scrapy
+
+from scrapy.contrib.spiders import CrawlSpider, Rule
+from scrapy.contrib.linkextractors import LinkExtractor
+
+from euler_parser.items import EulerItem
+
+class EulerSpider(CrawlSpider):
+    name = "euler"
+    allowed_domains = ["projecteuler.net"]
+    start_urls = [
+        "https://projecteuler.net/archives",
+    ]
+    rules = (
+        Rule(LinkExtractor(allow=("/archives.+"),),follow=True),
+        Rule(LinkExtractor(allow=("/problem=.+", )),callback='parse_item',follow=True),
+    )
+
+    def parse_item(self, response):
+        item = EulerItem()
+        item['index'] = response.xpath("/html/head/title").extract()[0].split()[1]
+        item['name'] = response.xpath("//h2/text()").extract()[0]
+        cond = u""
+        for i in response.xpath('//div[@role="problem"]/*').extract():
+            cond += i
+        item['condition'] = cond
+        return item