code: def get_bcbio_nodes(path):
      
      with open(path, 'r') as file_handle:
          hosts = collections.defaultdict(dict)
          for line in file_handle:
              matches = re.search(r'\]\s([^:]+):', line)
              if not matches:
                  continue
              # Format of the record will be "[Date] host: Timing: Step" if distributed,
              # otherwise the host will be missing and it means its a local run, we can stop
              elif 'Timing: ' in line and line.split(': ')[1] != 'Timing':
                  hosts = collections.defaultdict(dict, {socket.gethostname() : {}})
                  break
  
              hosts[matches.group(1)]
  
      return hosts
docs: Fetch the local nodes (-c local) that contain collectl files from
         the bcbio log file.
  
         :returns: A list with unique (non-FQDN) local hostnames
                   where collectl raw logs can be found.