title: Python request.get fails to get an answer for a url I can open on my browser
body: <p>I'm learning how to use python requests (Python 3) and I am trying to make a simple requests.get to get the HTML code from several websites. Although it works for most of them, there is one I am having trouble with.</p>
  
  <p>When I call : <a href="http://es.rs-online.com/" rel="noreferrer">http://es.rs-online.com/</a> everything works fine:</p>
  
  <pre><code>In [1]: import requests
     ...:html = requests.get("http://es.rs-online.com/")
  In [2]:html
  Out[2]: &lt;Response [200]&gt;
  </code></pre>
  
  <p>However, when I try it with <a href="http://es.farnell.com/" rel="noreferrer">http://es.farnell.com/</a>, python is unable to solve the address and keeps working on it forever. If I set a timeout, no matter how long, the <code>requests.get()</code> will always be interrupted by the timeout and by nothing else. I have also tried adding headers but it didn't solve the issue. Also, I don't think the error has anything to do with the proxy that I'm using, as I am able to open this website in my browser. Currently, my code looks like this:</p>
  
  <pre><code>import requests
  headers = {'User-Agent': 'Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/56.0.2924.76 Safari/537.36'}
  html = requests.get("http://es.farnell.com/",headers=headers, timeout=5, allow_redirects = True )
  </code></pre>
  
  <p>After 5 secs, I get the expected timeout notification.</p>
  
  <pre><code>ReadTimeout: HTTPConnectionPool(host='es.farnell.com', port=80): Read timed out. (read timeout=5)
  </code></pre>
  
  <p>Does anyone know what could be the issue?</p>