Just like in the interactive interpreter, when you get to the end of a suite, you have to hit enter again to end the suite.  This is indicated in the example by the '...' with no other text on the line (i.e.: at that ... you press enter).  In Idle it is the same, except that there is no leading '...' in the interface, just a blank line.

The tracker isn't really the place to get help on using python or Idle.  The python-list mailing list is a good place to seek help.

But if you can see a way to improve the documentation to make this clearer, that would be welcome.  Please open a new issue for that, though.