title: Click a Button in Scrapy
body: <p>I'm using Scrapy to crawl a webpage. Some of the information I need only pops up when you click on a certain button (of course also appears in the HTML code after clicking).</p>
  
  <p>I found out that Scrapy can handle forms (like logins) as shown <a href="http://doc.scrapy.org/topics/request-response.html?highlight=formrequest#scrapy.http.FormRequest">here</a>. But the problem is that there is no form to fill out, so it's not exactly what I need.</p>
  
  <p>How can I simply click a button, which then shows the information I need?</p>
  
  <p>Do I have to use an external library like mechanize or lxml?</p>