python实现sublime3的less编译插件示例

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);