[Tutor] Infinite program

[Pavel Brabec]

Thanks to  Bernard Lebel,
I realize that I don't saw the tree because there was forest in my view
:-)  .

Thanks to Danny You too,
I have read the whole Python tutorial a month and half ago, but packing
whole program into while loop just do not occur in my mind (I said for
myself: what should I write in the end of program to re-execute it?) .
Now it will be indelible burned into my mind. ;-)

Regards,
Pavel