Scrapy itemloader example

def parse(self, response):
        l = ItemLoader(item=Area(), response=response)
        l.add_value('id', parse_qs(response.xpath('//div[@class="clearfix subnav level-1"]//li//a[2]/@href').extract()[0])['area_id'][0])
        l.add_xpath('name', '//div[@class="clearfix subnav level-1"]//li//a[2]/text()')
        l.add_value('updated', datetime.utcnow().isoformat()) # you can also use literal values
        return l.load_item()
        #self.log('URL: {}'.format(response.url))

Scrapy itemloader example

def parse(self, response):
        for quote in response.css(".quote"):
            loader = ItemLoader(item=QuoteItem(), selector=quote)

            loader.add_css("text", ".text")
            loader.add_css("by", ".authoor")
            loader.add_css("tags", ".tag")
            yield loader.load_item()

Scrapy itemloader example

def parse_song_list(self, response):
        selector = Selector(response)

        song_name_list = selector.xpath('//body//ul[@class="f-hide"]/li/a/text()').extract()
        song_id_list = selector.xpath('//body//ul[@class="f-hide"]/li/a/@href').extract()
        title = selector.xpath('//title/text()').extract()
        for index, id_ in enumerate(song_id_list):
            l = ItemLoader(item=PlayListItem())
            l.add_value('song_name', song_name_list[index])
            l.add_value('title', title)
            yield scrapy.FormRequest(url=self.BASE_URL + id_, meta={'song_id': id_[9:], 'loader': l}, method='GET',
                                     headers=self.headers, callback=self.parse_single_song)

Scrapy itemloader example

def parse_news(self, response):
        self.logger.info('parse_news: %s' % response)
        loader = ItemLoader(item=News(), response=response)        
        json_response = json.loads(response.body)

        try:
            url = json_response['NewsML']['NewsItem']['NewsComponent']['NewsComponent']['NewsComponent']['NewsLines']['MoreLink']
        except KeyError:
            return loader.load_item()
        loader.add_value('url', url)

        try:
            title = json_response['NewsML']['NewsItem']['NewsComponent']['NewsComponent']['NewsComponent']['NewsLines']['HeadLine']
        except KeyError:
            return loader.load_item()
        if not title:
            return loader.load_item()
        loader.add_value('title', title)

        try: 
            raw_content = json_response['NewsML']['NewsItem']['NewsComponent']['NewsComponent']['NewsComponent']['ContentItem']['DataContent']['nitf']['body']['body.content']['p']
        except KeyError:
            return loader.load_item()
        if not raw_content:
            return loader.load_item()
        loader.add_value('raw_content', raw_content)

        try:
            author_name = json_response['NewsML']['NewsItem']['NewsComponent']['NewsComponent']['Author']
        except KeyError:
            return loader.load_item()
        if not author_name:
            loader.add_value('author_name', '')
        else:
            loader.add_value('author_name', author_name)

        try:
            date_time_str = json_response['NewsML']['NewsItem']['NewsManagement']['FirstCreated']
        except KeyError:
            return loader.load_item()
        if not date_time_str:
            return loader.load_item()

        date_time_str = date_time_str.split('T')
        date_time_str[1] = '0' * (6 - len(date_time_str[1])) + date_time_str[1]
        try:
            published_at_wib = datetime.strptime(' '.join(date_time_str), '%Y%m%d %H%M%S');
        except Exception:
            return loader.load_item()
        published_at = wib_to_utc(published_at_wib)
        loader.add_value('published_at', published_at)

        return loader.load_item()

Scrapy itemloader example

def parse_book(self, response):
        book_loader = ItemLoader(item=BookItem(), response=response)
        book_loader.default_input_processor = MapCompose(remove_tags)

        book_loader.add_value("image_urls", response.urljoin(response.css(".item.active > img::attr(src)").extract_first()))

        book_loader.add_css("title", ".col-sm-6.product_main > h1", TakeFirst())
        book_loader.add_css("price", ".price_color", TakeFirst())
        book_loader.add_css("upc", ".table.table-striped > tr:nth-child(1) > td", TakeFirst())
        book_loader.add_css("product_type", ".table.table-striped > tr:nth-child(2) > td", TakeFirst())
        book_loader.add_css("tax", ".table.table-striped > tr:nth-child(5) > td", TakeFirst())
        book_loader.add_css("stock", ".table.table-striped > tr:nth-child(6) > td", TakeFirst())
        book_loader.add_css("reviews", ".table.table-striped > tr:nth-child(7) > td", TakeFirst())
        book_loader.add_css("rating", ".star-rating::attr(class)", TakeFirst())
        return book_loader.load_item()

Scrapy itemloader example

def parse(self, response):
        try:
            l = ItemLoader(item=MovieItem(), response=response)
            l.add_value('name',
                        response.css('div#content h1 [property="v:itemreviewed"]::text').extract_first().strip())
            year = response.css('div#content h1 span.year::text').extract_first()
            if year.startswith('('):
                year = year[1:-1]
            l.add_value('year', year)

            newStrL = []
            for val in response.css('div#info::text').extract():
                newStr = val.strip().strip('/')
                if newStr != '':
                    newStrL.append(newStr)
                    if len(newStrL) == 2:
                        break

            if len(newStrL) == 2:
                l.add_value('region', newStrL[0].split('/'))
                l.add_value('language', newStrL[1].split('/'))

            l.add_value('duration', response.css('div#info [property="v:runtime"]::attr(content)').extract_first())
            l.add_value('types', response.css('div#info [property="v:genre"]::text').extract())
            l.add_value('directors', response.css('div#info [rel="v:directedBy"]::text').extract())
            l.add_value('actors', response.css('div#info [rel="v:starring"]::text').extract())
            l.add_value('runtime', response.css('div#info [property="v:initialReleaseDate"]::text').extract())
            l.add_value('detailurl', response.url)
            l.add_value('IMDburl', response.css('div#info [rel="nofollow"]::attr(href)').extract())
            l.add_value('stars', response.css('strong[property="v:average"]::text').extract_first())
            return l.load_item()
        except Exception:
            pass

Scrapy itemloader example

def parse_item(self, response):
        il = ItemLoader(item=ImageItem(), response=response)
        il.add_css('image_urls', 'img::attr(src)')
        return il.load_item()

Scrapy itemloader example

def parse(self, response):

        for outer in response.css('#comapreTable tr:not(:first-child)'):

            if outer.css('td[align="center"]'):
                ccode = outer.css('td[align="center"]>a::attr(id)').extract_first()
                cname = outer.css('td[align="center"]>a::text').extract_first()

            for inner in outer.xpath('td[div[@align="left"]/a]'):
                loader = ItemLoader(item=EolZhuanyeItem(), selector=inner)
                loader.add_value('ccode', ccode)
                loader.add_value('cname', cname)
                loader.add_css('url', 'a::attr(href)', lambda urls: urljoin(self.start_urls[0], urls[0]))
                loader.add_xpath('code', 'following-sibling::td[1]/text()', MapCompose(unicode.strip))
                loader.add_css('name', 'a::text', MapCompose(unicode.strip))
                item = loader.load_item()

                yield Request(url=item['url'][0], meta={'item': item}, callback=self.parse_item)

Scrapy itemloader example

def parse_news_metro(self, response):
        loader = ItemLoader(item=News(), response=response)
        loader.add_value('url', response.url)

        date_selector = response.css('.artikel > div.block-tanggal::text')
        if not date_selector:
            return self.parse_news_pilkada(loader, response)
        try:
            date_time_str = date_selector.extract()[0].split(',')[1].strip()[:-4]
            date_time_str = ' '.join([_(x) for x in date_time_str.split(' ')])
            published_at_wib = datetime.strptime(date_time_str, '%d %B %Y | %H:%M')
        except Exception:
            return loader.load_item()
        published_at = wib_to_utc(published_at_wib)
        if (self.media['last_scraped_at'] >= published_at):
            is_no_update = True
            self.logger.info('Media have no update')
            raise CloseSpider('finished')
        loader.add_value('published_at', published_at)

        title_selector = response.css('.artikel > h1::text')
        if not title_selector:
            return loader.load_item()
        loader.add_value('title', title_selector.extract()[0])

        # Select all p which don't have iframe inside it
        raw_content_selector = response.xpath('//div[@class="artikel"]//p[not(iframe)]')
        if not raw_content_selector:
            return loader.load_item()
        raw_content = ''
        for rsl in raw_content_selector:
            raw_content = raw_content + rsl.extract().strip()

        # Go to next page while there is next page button
        next_page_selector = response.css('.pagination-nb').xpath('//a[text()="next"]/@href')
        if next_page_selector:
            return Request(next_page_selector.extract()[0], callback=lambda x, loader=loader, raw_content=raw_content: self.parse_next_page_metro(x, loader, raw_content))

        loader.add_value('raw_content', raw_content)

        # The author usually put inside <strong> tag, however, some news is not using <strong> tag.
        # NOTE: this block of code may need revision in the future
        author_name = ''
        for author_name_selector in reversed(raw_content_selector):
            author_name_selector = author_name_selector.css('strong::text')
            for tmp in reversed(author_name_selector.extract()):
                tmp = tmp.strip()
                if tmp and all((x.isalpha() and x.isupper()) or x.isspace() or x == '.' or x == '|' for x in tmp):
                    author_name = tmp
                    break
            if author_name:
                break
        author_name = ','.join(author_name.split(' | '))
        loader.add_value('author_name', author_name)
        return loader.load_item()

Scrapy itemloader example

def _extract_item(self, response):
        #???????
        l = ItemLoader(response=response, item=MyspiderItem(), type='html')
        l.add_xpath('movie_name', '//h1/span[@property="v:itemreviewed"]/text()')
        l.add_xpath('movie_year', '//span[@property="v:initialReleaseDate"]/text()')
        l.add_xpath('movie_type', '//span[@property="v:genre"]/text()')
        l.add_xpath('movie_rate', '//strong[@class="ll rating_num"]/text()')
        l.add_value('url', response.url)
        #????????????load_item()????scrapy.Item??
        #?scrapy-redis????json?item???????redis?item???
        #??json?????python?????????????item?????
        return dict(l.load_item())

Similar codes

0 vote218 views1 answer
Accessing list inside dict python
Python
0 vote200 views1 answer
Only size-1 arrays can be converted to python scalars
Python
1 vote197 views1 answer
Isistance exmaple
Python
1 vote195 views1 answer
Python get names of all classes
Python
1 vote210 views1 answer
Conda specify multiple channels
Python
7 votes190 views3 answers
Python open encoding utf-8
Python
0 vote166 views2 answers
Rename second column pandas
Python
1 vote204 views1 answer
Missingpy No module named 'sklearn.neighbors.base'
Python
5 votes223 views4 answers
If queryset is empty django
Python Django
0 vote193 views1 answer
Get localapplication python
Python