human
Solve the following python programming problem given the following code:
def open_browser(url, no_browser_title, no_browser_markup) : 
    'Opens a webbrowser with the given URL.' 
    import os 
    def _iscommand(cmd) : 
        'Return True if cmd can be found on the executable search path.' 
        path = os.environ.get ('PATH') 
        if (not path) : 
            return False 
for dirname in path.split (os.pathsep) : 
            exe = os.path.join (dirname, cmd) 
            if os.path.isfile (exe) : 
                return True 
return False 
if _iscommand ('gnome-open') : 
        os.system (('gnome-open %s' % url)) 
else : 
        if _iscommand ('kfmclient') : 
            os.system (('kfmclient openURL %s' % url)) 
else : 
            if _iscommand ('firefox') : 
                os.system (('firefox %s' % url)) 
else : 
                if _iscommand ('mozilla-firefox') : 
                    os.system (('mozilla-firefox %s' % url)) 
else : 
                    mbox = gtk.MessageDialog (type = gtk.MESSAGE_INFO, buttons = gtk.BUTTONS_OK) 
                    mbox.set_title (no_browser_title) 
                    mbox.set_markup (url) 
                    mbox.run () 
                    mbox.destroy () 

    
    

    Fix the buggy line: mbox.set_markup (url)
assistant
#Here is Python code to fix the buggy line: mbox.

mbox.set_markup (no_browser_markup)