web scraping - Scrapy: extracting data from an html tag that uses an "id" Selector instead of a "class" -


i new web scraping , scrapy. hope can me.

i trying extract data web page uses tag. usually, if span tag using class, example:

<span class="class_a>hello, world!</span>

i use following code retrieve text.

request.css('span.class_a::text').extract()

however, when html using "id" instead of "class", example,

<span id="id_a>hello, universe!</span>

the code below not work anymore.

request.css('span.id_a::text').extract()

please help! what's correct way of extracting data using "id".

thank help!

the problem you're using "class selector" (please check this reference). should use "id selector", should work:

response.css('#id_a::text').extract()

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