It's just that you are expecting a prompt, but haven't provided one. If you do this:

print 'Radius? ';
$radius = <STDIN>;

[download]
all will be well.

I'm unfamiliar with Komodo, but this is a method that works cross-platform. A GUI popup is a little more complicated. I'd suggest learning those bits later.

After Compline,
Zaxo

In reply to Re: A Newcomer can't get the user input! by Zaxo
in thread A Newcomer can't get the user input! by John11

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