function g_python {

  g_rnd=$$

  local g_python_jobs
  mapfile -t g_python_jobs < <(jobs -r)

  # Use python in backround for multiple python commands running much faster
  #if [ -z "${g_python_running}" ]
  if [[ ${g_python_jobs[*]} != *python-pipeexec.py* ]]
  then
    mkdir -p ${g_tmp}/${g_rnd}
    if [ -s ${g_tmp}/${g_rnd}/python-error ]
    then
      g_echo_error "From last python run: $(cat ${g_tmp}/${g_rnd}/python-error)"
    fi
    [ -p ${g_tmp}/${g_rnd}/python-in ] || mkfifo ${g_tmp}/${g_rnd}/python-in
    #[ -p ${g_tmp}/${g_rnd}/python-out ] || mkfifo ${g_tmp}/${g_rnd}/python-out
    echo "while 1:
  exec(open(\"${g_tmp}/${g_rnd}/python-in\").read())
  print('DONE')
" >${g_tmp}/${g_rnd}/python-pipeexec.py

    # python stream channel
    { python3 -u ${g_tmp}/${g_rnd}/python-pipeexec.py >>${g_tmp}/${g_rnd}/python-out 2>>${g_tmp}/${g_rnd}/python-error & }
    g_python_running="true"
  fi

  # do python
  >${g_tmp}/${g_rnd}/python-out
  >${g_tmp}/${g_rnd}/python-error
  echo $@ >${g_tmp}/${g_rnd}/python-in

  while true
  do
   
    # Check for output
    if [ -s ${g_tmp}/${g_rnd}/python-out ]
    then
      unset g_python_result
      mapfile -t g_python_result <${g_tmp}/${g_rnd}/python-out
      if [[ ${g_python_result[-1]} == DONE ]]
      then
        # remove the DONE output (last array element
        unset g_python_result[-1]
        break
      fi
    fi

    # Check for error
    mapfile -t g_python_jobs < <(jobs -r)
    if [ -s "${g_tmp}/${g_rnd}/python-error" ] || [[ ${g_python_jobs[*]} != *python-pipeexec.py* ]]
    then
      g_echo_error "Python Progress not running:
$(cat ${g_tmp}/${g_rnd}/python-error)"
      return 1
    fi

    # sleep a short time
    sleep 0.1
  done

}