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# -*- coding: utf-8 -*-
import scrapy
import os
import selectorlib
from selectorlib.formatter import Formatter
class Price(Formatter):
def format(self, text):
price = text.replace('£','').strip()
return float(price)
class ScrapemeSpider(scrapy.Spider):
name = 'scrapeme_with_formatter'
allowed_domains = ['']
start_urls = ['']
# Create Extractor for listing page
listing_page_extractor = selectorlib.Extractor.from_yaml_file(os.path.join(os.path.dirname(__file__),'../selectorlib_yaml/ListingPage.yml'))
# Create Extractor for product page
product_page_extractor = selectorlib.Extractor.from_yaml_file(os.path.join(os.path.dirname(__file__),'../selectorlib_yaml/ProductPage_with_Formatter.yml'),formatters = [Price])
def parse(self, response):
# Extract data using Extractor
data = self.listing_page_extractor.extract(response.text)
if 'next_page' in data:
yield scrapy.Request(data['next_page'],callback=self.parse)
for p in data['product_page']:
yield scrapy.Request(p,callback=self.parse_product)
def parse_product(self, response):
# Extract data using Extractor
product = self.product_page_extractor.extract(response.text)
if product:
yield product
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