def test_keep_single_value(self):
"""Loaded item should contain values from the initial item"""
input_item = self.item_class(name='foo')
il = ItemLoader(item=input_item)
loaded_item = il.load_item()
self.assertIsInstance(loaded_item, self.item_class)
self.assertEqual(dict(loaded_item), {'name': ['foo']})
def download_files(self, response):
try:
logger.info(f'ZooScraper : download_files : {response}')
zip_urls = []
# get download file link
html = html_xml.fromstring(response.text)
links = html.xpath(
"//a[@class='js-navigation-open link-gray-dark']/@href")
# url=self.base_url+links[3]
for url in links:
git_url = self.base_url + url
response = requests.get(git_url)
html = html_xml.fromstring(response.text)
zip_links = html.xpath(
"//a[@class='js-navigation-open link-gray-dark']/@href")
zip_url = self.base_url + zip_links[3]
zip_urls.append(zip_url)
loader = ItemLoader(item=MaliciousFileCrawlerItem())
loader.add_value('file_urls', zip_url)
yield loader.load_item()
except Exception as err:
logger.error(f'ZooScraper : download_files : {err}')
raise err
def test_load_item_using_default_loader(self):
i = dict(summary='lala')
il = ItemLoader(item=i)
il.add_value('name', 'marta')
item = il.load_item()
assert item is i
assert item['summary'] == ['lala']
assert item['name'] == ['marta']
def test_get_output_value_list(self):
"""Getting output value must not remove value from item"""
input_item = self.item_class(name=['foo', 'bar'])
il = ItemLoader(item=input_item)
self.assertEqual(il.get_output_value('name'), ['foo', 'bar'])
loaded_item = il.load_item()
self.assertIsInstance(loaded_item, self.item_class)
self.assertEqual(loaded_item, dict({'name': ['foo', 'bar']}))
def test_add_value_list_singlevalue(self):
"""Values added after initialization should be appended"""
input_item = self.item_class(name=['foo', 'bar'])
il = ItemLoader(item=input_item)
il.add_value('name', 'qwerty')
loaded_item = il.load_item()
self.assertIsInstance(loaded_item, self.item_class)
self.assertEqual(dict(loaded_item), {'name': ['foo', 'bar', 'qwerty']})
def get_payments(self, payments) -> PaymentMethod:
if payments:
for payment in payments:
loader = ItemLoader(item=PaymentMethod())
loader.add_value('method', payment.get('method'))
loader.add_value('installments',
self.get_installments(payment))
yield loader.load_item()
def test_nested_replace(self):
loader = ItemLoader(selector=self.selector)
nl1 = loader.nested_xpath('//footer')
nl2 = nl1.nested_xpath('a')
loader.add_xpath('url', '//footer/a/@href')
self.assertEqual(loader.get_output_value('url'),
['http://www.scrapy.org'])
nl1.replace_xpath('url', 'img/@src')
self.assertEqual(loader.get_output_value('url'), ['/images/logo.png'])
nl2.replace_xpath('url', '@href')
self.assertEqual(loader.get_output_value('url'),
['http://www.scrapy.org'])
def test_nested_css(self):
loader = ItemLoader(selector=self.selector)
nl = loader.nested_css("header")
nl.add_xpath('name', 'div/text()')
nl.add_css('name_div', '#id')
nl.add_value('name_value',
nl.selector.xpath('div[@id = "id"]/text()').getall())
self.assertEqual(loader.get_output_value('name'), ['marta'])
self.assertEqual(loader.get_output_value('name_div'),
['<div id="id">marta</div>'])
self.assertEqual(loader.get_output_value('name_value'), ['marta'])
self.assertEqual(loader.get_output_value('name'),
nl.get_output_value('name'))
self.assertEqual(loader.get_output_value('name_div'),
nl.get_output_value('name_div'))
self.assertEqual(loader.get_output_value('name_value'),
nl.get_output_value('name_value'))
def test_nested_ordering(self):
loader = ItemLoader(selector=self.selector)
nl1 = loader.nested_xpath('//footer')
nl2 = nl1.nested_xpath('a')
nl1.add_xpath('url', 'img/@src')
loader.add_xpath('url', '//footer/a/@href')
nl2.add_xpath('url', 'text()')
loader.add_xpath('url', '//footer/a/@href')
self.assertEqual(loader.get_output_value('url'), [
'/images/logo.png',
'http://www.scrapy.org',
'homepage',
'http://www.scrapy.org',
])
def test_nested_load_item(self):
loader = ItemLoader(selector=self.selector)
nl1 = loader.nested_xpath('//footer')
nl2 = nl1.nested_xpath('img')
loader.add_xpath('name', '//header/div/text()')
nl1.add_xpath('url', 'a/@href')
nl2.add_xpath('image', '@src')
item = loader.load_item()
assert item is loader.item
assert item is nl1.item
assert item is nl2.item
self.assertEqual(item['name'], ['marta'])
self.assertEqual(item['url'], ['http://www.scrapy.org'])
self.assertEqual(item['image'], ['/images/logo.png'])
def __callback(self, response: HtmlResponse):
item = LeroymerlinItem()
loader = ItemLoader(item=item, selector=response)
loader.add_xpath(Fields.name, "//h1/text()")
loader.add_value(Fields.link, response.url)
loader.add_xpath(Fields.article_number,
"//span[@slot='article']/text()")
loader.add_xpath(Fields.price, "//uc-pdp-price-view/span/text()")
loader.add_xpath(Fields.image_links,
"//uc-pdp-media-carousel//img/@src")
loader.add_value(Fields.image_paths, [])
loader.add_value(Fields.category, self.__category)
# 2)Написать универсальный обработчик характеристик товаров, который будет формировать данные вне зависимости от их типа и количества.
loader.add_xpath(
Fields.details,
"//dl[@class='def-list']//dt/text() | //dl[@class='def-list']//dd/text()"
)
yield loader.load_item()
def parse(self, response):
current_page = response.meta['currentPage']
json_resp = json.loads(response.text)
houses = json_resp['cat1']['searchResults']['listResults']
total_pages = json_resp['cat1']['searchList']['totalPages']
for house in houses:
loader = ItemLoader(item=ZillowItem())
loader.add_value('id', house.get('id'))
loader.add_value('image_urls', house.get('imgSrc'))
loader.add_value('detail_url', house.get('detailUrl'))
loader.add_value('status_type', house.get('statusType'))
loader.add_value('status_text', house.get('statusText'))
loader.add_value('price', house.get('price'))
loader.add_value('address', house.get('address'))
loader.add_value('beds', house.get('beds'))
loader.add_value('baths', house.get('baths'))
loader.add_value('area_sqft', house.get('area'))
loader.add_value('latitude', house.get('latLong').get('latitude'))
loader.add_value('longitude', house.get('latLong').get('longitude'))
loader.add_value('broker_name', house.get('brokerName'))
loader.add_value('broker_phone', house.get('brokerPhone'))
yield loader.load_item()
print({
"houses": len(houses),
"current_page": current_page,
"total_pages": total_pages
})
if current_page <= total_pages:
current_page += 1
yield scrapy.Request(
url=parse_new_url(URL, page_number=current_page),
callback=self.parse,
cookies=get_cookie(),
meta={
'currentPage': current_page
}
)
def test_add_none(self):
il = ItemLoader()
il.add_value('name', None)
assert il.get_collected_values('name') == []
def test_values_list(self):
"""Values from initial item must be added to loader._values"""
input_item = self.item_class(name=['foo', 'bar'])
il = ItemLoader(item=input_item)
self.assertEqual(il._values.get('name'), ['foo', 'bar'])
def parse_application(self, response):
loader = ItemLoader(item=TraidingSsgeItem(), selector=response)
loader._add_value('statement_date', response.request.meta['appdate'])
loader.add_xpath('new_or_used',
"normalize-space(//div[@class='condition']/text())")
loader.add_xpath('location',
"//div[@class='location-time']/div[2]/p/span/text()")
loader.add_xpath(
'last_updated',
'normalize-space(//div[@class="location-time"]/div[2]/descendant::span[2]/text())'
)
loader.add_xpath('product',
"normalize-space(//h2[@class='main-title']/text())")
loader.add_xpath(
'price',
"normalize-space(//div[@class='market-item-price ']/text())")
loader.add_xpath(
'currency_symbol',
"normalize-space(//div[@class='market-item-price ']/span/text())")
loader.add_xpath(
'applicant', "normalize-space(//div[@class='author_type']/text())")
loader.add_value('current_app_url', response.url)
loader.add_xpath(
'all_apps_url',
"//div[@class='author_type']/descendant::span/a/@href")
loader.add_xpath(
'agent_or_person',
"normalize-space((//div[@class='author_type'])[1]/span/a/text())")
loader.add_xpath(
'number_of_apps',
"normalize-space(//div[@class='author_type']/descendant::span[2]/text())"
)
loader.add_xpath(
'product_description',
"normalize-space(//span[@class='details_text']/text())")
loader.add_xpath(
'product_specification',
"normalize-space(//div[@class='jobs_details']/span/text())")
loader.add_xpath(
'product_condition_description',
"normalize-space(//div[@class='jobs_details'][2]/span[2]/text())")
loader.add_xpath(
'seen',
"normalize-space(//div[@class='article_views']/span/text())")
loader.add_xpath(
'app_id',
"normalize-space(//div[@class='market-item-id']/span/text())")
loader.add_xpath(
'phone', "normalize-space(//div[@class='numbers-wrap']/a/@href)")
print(loader.item)
yield loader.load_item()
def test_add_zero(self):
il = ItemLoader()
il.add_value('name', 0)
assert il.get_collected_values('name') == [0]
def parse(self, response):
loader = ItemLoader(WikiPageItem(), response, response=response)
loader.add_css('name', 'h1.firstHeading::text')
loader.add_value('url', response.url)
loader.add_css('img', 'td a.image img::attr(src)')
links = self.link_extractor.extract_links(response)
links_items = [{'url': link.url, 'text': link.text} for link in links]
loader.add_value('links', links_items)
yield from response.follow_all([link.url for link in links])
yield loader.load_item()
def test_get_value(self):
il = ItemLoader()
self.assertEqual('FOO',
il.get_value(['foo', 'bar'], TakeFirst(), str.upper))
self.assertEqual(['foo', 'bar'],
il.get_value(['name:foo', 'name:bar'],
re='name:(.*)$'))
self.assertEqual(
'foo',
il.get_value(['name:foo', 'name:bar'],
TakeFirst(),
re='name:(.*)$'))
self.assertEqual(
None, il.get_value(['foo', 'bar'], TakeFirst(), re='name:(.*)$'))
self.assertEqual(None, il.get_value(None, TakeFirst()))
il.add_value('name', ['name:foo', 'name:bar'],
TakeFirst(),
re='name:(.*)$')
self.assertEqual(['foo'], il.get_collected_values('name'))
il.replace_value('name', 'name:bar', re='name:(.*)$')
self.assertEqual(['bar'], il.get_collected_values('name'))
def _test_item(self, item):
il = ItemLoader()
il.add_value('item_list', item)
self.assertEqual(il.load_item(), {'item_list': [item]})
def test_get_unset_value(self):
loader = ItemLoader()
self.assertEqual(loader.load_item(), {})
self.assertEqual(loader.get_output_value('foo'), [])
self.assertEqual(loader.load_item(), {})
def parse_single_hausnummer_page(self, response):
meta = response.meta
loader = ItemLoader(items.Street(), response)
loader.default_output_processor = TakeFirst()
loader.add_value('stadtteil', meta['stadtteil'])
loader.add_value('name', meta['adresse'])
loader.add_value('link', meta['link'])
for script in response.css("script[type='text/javascript']").getall():
if "demographicInfo" in script:
loader.add_value('demographics', self.regex_demographics.search(script).group())
break
yield loader.load_item()
