old_contents: from django.utils.translation import ugettext_lazy as _
  
  class License(object):
      def __init__(self, code, name, url, icon, icon_small):
          self.code = code
          self.name = name
          self.url = url
          self.icon = icon
          self.icon_small = icon_small
  
  CC_BY_SA_4_0 = License("CC-BY-SA-4.0",
                          _("Creative Commons Attribution-ShareAlike 4.0 International"),
                          _("http://creativecommons.org/licenses/by-sa/4.0/"),
                          "http://i.creativecommons.org/l/by-sa/4.0/88x31.png",
                          "/static/img/rp-cc-by-sa_45.png",
                          )
  
  LICENSES = {
      CC_BY_SA_4_0.code: CC_BY_SA_4_0,
  }
  
  DEFAULT_LICENSE = CC_BY_SA_4_0
  
new_contents: from django.utils.translation import ugettext_lazy as _
  
  class License(object):
      def __init__(self, code, name, url, icon, icon_small):
          self.code = code
          self.name = name
          self.url = url
          self.icon = icon
          self.icon_small = icon_small
  
  CC_BY_SA_4_0 = License("CC-BY-SA-4.0",
                          _("Creative Commons Attribution-ShareAlike 4.0 International"),
                          _("https://creativecommons.org/licenses/by-sa/4.0/"),
                          "https://licensebuttons.net/l/by-sa/4.0/88x31.png",
                          "/static/img/rp-cc-by-sa_45.png",
                          )
  
  LICENSES = {
      CC_BY_SA_4_0.code: CC_BY_SA_4_0,
  }
  
  DEFAULT_LICENSE = CC_BY_SA_4_0
  
subject: change license links to HTTPS