code: def set_bpf_filter_on_all_devices(filterstr):
          '''
          Long method name, but self-explanatory.  Set the bpf
          filter on all devices that have been opened.
          '''
          with PcapLiveDevice._lock:
              for dev in PcapLiveDevice._OpenDevices.values():
                  _PcapFfi.instance()._set_filter(dev, filterstrf set_bpf_filter_on_all_devices(filterstr):
          '''
          Long method name, but self-explanatory.  Set the bpf
          filter on all devices that have been opened.
          '''
          with PcapLiveDevice._lock:
              for dev in PcapLiveDevice._OpenDevices.values():
                  _PcapFfi.instance()._set_filter(dev, filterstr)
docs: Long method name, but self-explanatory.  Set the bpf
          filter on all devices that have been opened.