#!/usr/bin/env python import webbrowser, threading url = "http://tavmjong.free.fr/INKSCAPE/MANUAL/html/index.php" class VisitWebSiteWithoutLockingInkscape(threading.Thread): def __init__(self, url): self.url = url threading.Thread.__init__ (self) def run(self): webbrowser.open(self.url) vwswli = VisitWebSiteWithoutLockingInkscape(url) vwswli.start()