import sublime, sublime_plugin import urllib import json class exampleCommand(sublime_plugin.TextCommand):  def run(self, edit):   file_name=self.view.file_name();   if file_name.find('.less') == -1:    print('only .less file can compile to css!!');    return;   file_object_from = open(file_name);   all_the_text = file_object_from.read();   url = "http://tool.oschina.net/action/less/less_compile";   data =  all_the_text.encode(encoding='UTF8');   headers = {'User-Agent':'sublime_plugin'};   req = urllib.request.Request(url,data,headers);   response = urllib.request.urlopen(req);   the_page = response.read();   css=json.loads(the_page.decode("utf8"))['css'];   file_object_to = open(self.view.file_name().replace('.less', '.css'), 'w')   file_object_to.write(css);   file_object_from.close();   file_object_to.close();   print(css);