run.py 文件源码

def check_for_update():
  if os.path.exists(FILE_UPDATE):
    mtime = os.path.getmtime(FILE_UPDATE)
    last = datetime.utcfromtimestamp(mtime).strftime('%Y-%m-%d')
    today = datetime.utcnow().strftime('%Y-%m-%d')
    if last == today:
      return
  try:
    with open(FILE_UPDATE, 'a'):
      os.utime(FILE_UPDATE, None)
    request = urllib2.Request(
      CORE_VERSION_URL,
      urllib.urlencode({'version': main.__version__}),
    )
    response = urllib2.urlopen(request)
    with open(FILE_UPDATE, 'w') as update_json:
      update_json.write(response.read())
  except (urllib2.HTTPError, urllib2.URLError):
    pass