func doRead(_data)
  fvar(s,a,b)
  
  a = Array
  
  if (expof(a) != PyList)
    b = 'list('&&a&&')'
  else
    b = a
  end

  s = b && '[' && Index && ']'
  if(linked(Item))
    println(arr_val, ' = ', s)
    event(onRead, arr_val)
  else
    event(onRead, s)
  end
end

func doWrite(_data)
  fvar(a,b)
  a = Array
  
  if (expof(a) != PyList)
    b = 'list('&&a&&')'
  else
    b = a
  end

  println(b, '[', Index, '] = ', Value)
  event(onWrite)
end

func doAdd(_data)
  fvar(a,b)
  a = Array

  if (expof(a) != PyList)
    b = 'list('&&a&&')'
  else
    b = a
  end

  println(b, ' += [', Value, ']')
end

func Item
  if(linked(doRead))
    return(arr_val)
  else
    return(Array && '[' && Index && ']')
  end
end

func Count()
  return('len('&& Array&& ')')
end