code: def multi_platform_open(cmd):
      
      if platform == "linux" or platform == "linux2":
          cmd = ['xdg-open', cmd]
      elif platform == "darwin":
          cmd = ['open', cmd]
      elif platform == "win32":
          cmd = ['start', cmd]
      subprocess.check_call(cmd)
docs: Take the given command and use the OS to automatically open the appropriate
      resource.  For instance, if a URL is provided, this will have the OS automatically
      open the URL in the default web browser.