Traceback (most recent call last):
  File "E:\TabnetBD\cgi-win\dhx3.py", line 94, in <module>
    f       = open(sys.argv[1])         # Abre o arquivo cujo nome é o primeiro argumento na linha de comando
                   ~~~~~~~~^^^
IndexError: list index out of range

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "E:\TabnetBD\cgi-win\dhx3.py", line 96, in <module>
    print('<h2><font color="red">Arquivo "' + sys.argv[1] + '" não encontrado.</font></h2>')  
                                              ~~~~~~~~^^^
IndexError: list index out of range