code: def parse(self, resource):
          
          try:
              import polib
          except ImportError as e:
              self.rethrow(
                  "You need to install polib to use PoFileLoader or MoFileLoader",
                  ImportError)
  
          self.assert_valid_path(resource)
  
          messages = {}
          parsed = self._load_contents(polib, resource)
  
          for item in parsed:
              if item.msgid_plural:
                  plurals = sorted(item.msgstr_plural.items())
                  if item.msgid and len(plurals) > 1:
                      messages[item.msgid] = plurals[0][1]
                  plurals = [msgstr for idx, msgstr in plurals]
                  messages[item.msgid_plural] = "|".join(plurals)
              elif item.msgid:
                  messages[item.msgid] = item.msgstr
  
          return messages
docs: Loads given resource into a dict using polib
  
          @type resource: str
          @param resource: resource
  
          @rtype: list