sarsi

existed dir will raise exception "TypeError: raise: arg 3 must be a traceback or None" , ``` raise Exception('Directory %s already exists' % new_dir_name) ```

Open the link in browser : https://feedly.com/subscription%2Ffeed%2Fhttp://github-trends.ryotarai.info/rss/github_trends_go_weekly.rss, then return error info: {"errorCode":404,"errorId":"ap5int-sv2.2018041605.3032734","errorMessage":"API version not found"}