I\'ve been scraping websites before using this same technique. But with this website it seems to not work.
import urllib2
from BeautifulSoup import BeautifulSoup
but I want to know why I am getting a gif accesing the url like that and when I access it via my browser I get the website perfectly.
because these guys are smart and don't want their website to be accessed outside a web browser. What you need to do is to fake a known browser by adding User-agent to the header. Here is a modified example that will work
>>> import urllib2
>>> opener = urllib2.build_opener()
>>> opener.addheaders = [('User-agent', 'Mozilla/5.0')]
>>> url = "http://www.weatheronline.co.uk/weather/maps/current?LANG=en&DATE=1354104000&CONT=euro&LAND=UK&KEY=UK&SORT=1&INT=06&TYP=sonne&ART=tabelle&RUBRIK=akt&R=310&CEL=C"
>>> response = opener.open(url)
>>> page = response.read()
>>> from BeautifulSoup import BeautifulSoup
>>> soup = BeautifulSoup(page)