docs: def dev_from_pcapname(self, pcap_name):
          """Return Windows device name for given pcap device name."""
          try:
              return next(iface for iface in six.itervalues(self)
                          if iface.pcap_name == pcap_name)
          except (StopIteration, RuntimeError):
              raise ValueError("Unknown pypcap network interface %r" % pcap_name)