code: def _parse_hosts_inventory(self, inventory_path):
          
          hosts_contents = []
          if os.path.isdir(inventory_path):
              self.log.debug("Inventory path {} is a dir. Looking for inventory files in that dir.".format(inventory_path))
              for fname in os.listdir(inventory_path):
                  # Skip .git folder
                  if fname == '.git':
                      continue
                  path = os.path.join(inventory_path, fname)
                  if os.path.isdir(path):
                      continue
                  with codecs.open(path, 'r', encoding='utf8') as f:
                      hosts_contents += f.readlines()
          else:
              self.log.debug("Inventory path {} is a file. Reading as inventory.".format(inventory_path))
              with codecs.open(inventory_path, 'r', encoding='utf8') as f:
                  hosts_contents = f.readlines()
  
          # Parse inventory and apply it to the hosts
          hosts_parser = parser.HostsParser(hosts_contents)
          for hostname, key_values in hosts_parser.hosts.items():
              self.update_host(hostname, key_values)
docs: Read all the available hosts inventory information into one big list
          and parse it.