class Arguments:
  expt = 'ueddaq02'
  run = 66
  evtmax = 5
  detname = 'epixquad'

args = Arguments()

from psana.pyalgos.generic.NDArrUtils import info_ndarr
from psana import DataSource
ds = DataSource(exp=args.expt, run=args.run, dir=f'/cds/data/psdm/{args.expt[:3]}/{args.expt}/xtc')

for irun,run in enumerate(ds.runs()):
  print('\n==== %02d run: %d exp: %s detnames: %s' % (irun, run.runnum, run.expt, ','.join(run.detnames)))

  print('make detector object' % args.detname)
  det = run.Detector(args.detname)

  for istep,step in enumerate(run.steps()):
    print('\nStep %1d' % istep)

    for ievt,evt in enumerate(step.events()):
        if ievt>args.evtmax: exit('exit by number of events limit %d' % args.evtmax)

        print('%s\nEvent %04d' % (80*'_',ievt))
        segs = det.raw.segments(evt)
        raw = det.raw.raw(evt)

        print(info_ndarr(segs, 'segsments '))
        print(info_ndarr(raw, 'raw '))