code: def view(self, wait=True, tempname="/tmp/seltable"):
          import os
          viewed = False
          type = self.info()["type"]
          if type == "Measurement Set" or type == "Image":
              if os.system('test -x `which casaviewer` > /dev/null 2>&1') == 0:
                  waitstr1 = ""
                  waitstr2 = "foreground ..."
                  if not wait:
                      waitstr1 = " &"
                      waitstr2 = "background ..."
                  if self.iswritable():
                      six.print_("Flushing data and starting casaviewer " +
                                 "in the " + waitstr2)
                  else:
                      six.print_("Starting casaviewer in the " + waitstr2)
                  self.flush()
                  self.unlock()
                  if os.system('test -e ' + self.name() + '/table.dat') == 0:
                      os.system('casaviewer ' + self.name() + waitstr1)
                      viewed = True
                  elif len(tempname) > 0:
                      six.print_("  making a persistent copy in table " +
                                 tempname)
                      self.copy(tempname)
                      os.system('casaviewer ' + tempname + waitstr1)
                      viewed = True
                      if wait:
                          from casacore.tables import tabledelete
                          six.print_("  finished viewing")
                          tabledelete(tempname)
                      else:
                          six.print_("  after viewing use tabledelete('" +
                                     tempname + "') to delete the copy")
                  else:
                      six.print_("Cannot browse because the table is " +
                                 "in memory only.")
                      six.print_("You can browse a (shallow) persistent " +
                                 "copy of the table like:")
                      six.print_("   t.view(True, '/tmp/tab1')")
          if not viewed:
              self.browse(wait, tempname)