render screenshot of every Scrapy item.""" SPLASH_URL = "http://localhost:8050/render.png?url={}" async def process_item(self, item, spider): adapter = ItemAdapter(item) encoded_item_url = quote(adapter["url"]) format(encoded_item_url) request = scrapy.Request(screenshot_url, callback=NO_CALLBACK) response = await maybe_deferred_to_future( spider.crawler.engine.download(request, spider) ) if response.status != from playwright.async_api import async_playwright class PlaywrightSpider(scrapy.Spider): name = "playwright" start_urls = ["data:,"] # avoid using the default Scrapy downloader async def parse(self,

render screenshot of every Scrapy item.""" SPLASH_URL = "http://localhost:8050/render.png?url={}" async def process_item(self, item, spider): adapter = ItemAdapter(item) encoded_item_url = quote(adapter["url"]) format(encoded_item_url) request = scrapy.Request(screenshot_url, callback=NO_CALLBACK) response = await maybe_deferred_to_future( spider.crawler.engine.download(request) ) if response.status != 200: # from playwright.async_api import async_playwright class PlaywrightSpider(scrapy.Spider): name = "playwright" start_urls = ["data:,"] # avoid using the default Scrapy downloader async def parse(self,

render screenshot of every Scrapy item.""" SPLASH_URL = "http://localhost:8050/render.png?url={}" async def process_item(self, item, spider): adapter = ItemAdapter(item) encoded_item_url = quote(adapter["url"]) format(encoded_item_url) request = scrapy.Request(screenshot_url, callback=NO_CALLBACK) response = await maybe_deferred_to_future( spider.crawler.engine.download(request) ) if response.status != 200: # from playwright.async_api import async_playwright class PlaywrightSpider(scrapy.Spider): name = "playwright" start_urls = ["data:,"] # avoid using the default Scrapy downloader async def parse(self,

render screenshot of every Scrapy item.""" SPLASH_URL = "http://localhost:8050/render.png?url={}" async def process_item(self, item, spider): adapter = ItemAdapter(item) encoded_item_url = quote(adapter["url"]) format(encoded_item_url) request = scrapy.Request(screenshot_url, callback=NO_CALLBACK) response = await maybe_deferred_to_future( spider.crawler.engine.download(request) ) if response.status != 200: # simple snippet to illustrate its usage within a Scrapy spider: import scrapy from playwright.async_api import async_playwright class PlaywrightSpider(scrapy.Spider): name = "playwright" start_urls = ["data:

spiders. Coroutines Use the coroutine syntax [https://docs.python.org/3/reference/compound_stmts.html#async]. asyncio Use asyncio [https://docs.python.org/3/library/asyncio.html#module-asyncio] and asyncio screenshot of every Scrapy item.""" SPLASH_URL = "http://localhost:8050/render.png?url={}" async def process_item(self, item, spider): adapter = ItemAdapter(item) encoded_item_url = format(encoded_item_url) request = scrapy.Request(screenshot_url, callback=NO_CALLBACK) response = await maybe_deferred_to_future( spider.crawler.engine.download(request) ) if response

spiders. Coroutines Use the coroutine syntax [https://docs.python.org/3/reference/compound_stmts.html#async]. asyncio Use asyncio [https://docs.python.org/3/library/asyncio.html#module-asyncio] and asyncio screenshot of every Scrapy item.""" SPLASH_URL = "http://localhost:8050/render.png?url={}" async def process_item(self, item, spider): adapter = ItemAdapter(item) encoded_item_url = format(encoded_item_url) request = scrapy.Request(screenshot_url, callback=NO_CALLBACK) response = await maybe_deferred_to_future( spider.crawler.engine.download(request, spider) )

spiders. Coroutines Use the coroutine syntax [https://docs.python.org/3/reference/compound_stmts.html#async]. asyncio Use asyncio [https://docs.python.org/3/library/asyncio.html#module-asyncio] and asyncio screenshot of every Scrapy item.""" SPLASH_URL = "http://localhost:8050/render.png?url={}" async def process_item(self, item, spider): adapter = ItemAdapter(item) encoded_item_url = format(encoded_item_url) request = scrapy.Request(screenshot_url, callback=NO_CALLBACK) response = await maybe_deferred_to_future( spider.crawler.engine.download(request) ) if response

render screenshot of every Scrapy item.""" SPLASH_URL = "http://localhost:8050/render.png?url={}" async def process_item(self, item, spider): adapter = ItemAdapter(item) encoded_item_url = quote(adapter["url"]) format(encoded_item_url) request = scrapy.Request(screenshot_url, callback=NO_CALLBACK) response = await maybe_deferred_to_future( spider.crawler.engine.download(request, spider) ) if response.status != from playwright.async_api import async_playwright class PlaywrightSpider(scrapy.Spider): name = "playwright" start_urls = ["data:,"] # avoid using the default Scrapy downloader async def parse(self,

render screenshot of every Scrapy item.""" SPLASH_URL = "http://localhost:8050/render.png?url={}" async def process_item(self, item, spider): adapter = ItemAdapter(item) encoded_item_url = quote(adapter["url"]) screenshot_url = self.SPLASH_URL.format(encoded_item_url) request = scrapy.Request(screenshot_url) response = await maybe_deferred_to_future(spider.crawler.engine.download(request, ˓→ spider)) if response.status from playwright.async_api import async_playwright class PlaywrightSpider(scrapy.Spider): name = "playwright" start_urls = ["data:,"] # avoid using the default Scrapy downloader async def parse(self,

render screenshot of every Scrapy item.""" SPLASH_URL = "http://localhost:8050/render.png?url={}" async def process_item(self, item, spider): (continues on next page) 88 Chapter 3. Basic concepts Scrapy format(encoded_item_url) request = scrapy.Request(screenshot_url, callback=NO_CALLBACK) response = await maybe_deferred_to_future( spider.crawler.engine.download(request, spider) ) if response.status != simple snippet to illustrate its usage within a Scrapy spider: import scrapy from playwright.async_api import async_playwright class PlaywrightSpider(scrapy.Spider): name = "playwright" start_urls = ["data: