Q:

How do we pass parameters to responsive table filters from python?

I want to scrape a responsive table that has two filters, one for a simple text search and the other for number of rows displayed per page. 
Is it possible to pass parameters to the filters through my request? 

A:

That table is filtered client side only. So that means all the data is already there, but just hidden. To get all the rows you can simply use one of:
response.css('#proxylisttable tbody tr')
response.xpath('//table[@id="proxylisttable"]/tbody/tr')

If you want to interact with the form you will need to use Scrapy Splash in order to execute the Javascript necessary to do the filtering.

