def before_pass(pass_number, scan):
    #set_exec_pars(open=False)
    if pass_number>1:
        get_context().dataManager.splitScanData(scan)
    #set_exec_pars(tag="scan " + str(pass_number))
    #print get_exec_pars().tag
  

lscan(inp, sin, 0, 10, 10, passes=3, before_pass=before_pass)