Well, that solved a probable error, but it uncovered a more serious one. As I expected, there does indeed appear to be a problem with the passed hash. podmaster has mentioned (via CB) that this is probably the problem, and that I should pass a hashref instead, but I haven't figured that out just yet. Here's a new dump... 
[jason@lappy jason]$ perl test_menu.pl 
$VAR1 = bless( {
                 '1' => undef,
                 '2' => undef,
                 '3' => undef,
                 '_header' => 'Just testing...',
                 '4' => undef,
                 '_comment' => 'Ok, this is where the comment section 
+would normally go.',
                 '_title' => 'Testing menu'
               }, 'Menu' );

[download]
Update: Thanks to podmaster who pointed out that set_choices() should have {}'s in the HoH assignment, rather than ()'s. Thanks everyone!

In reply to Re: Re: Designing a package object by fuzzyping
in thread Designing a package object by fuzzyping

Title:
Use:  <p> text here (a paragraph) </p>
and:  <code> code here </code>
to format your post, it's "PerlMonks-approved HTML":


  • Posts are HTML formatted. Put <p> </p> tags around your paragraphs. Put <code> </code> tags around your code and data!
  • Titles consisting of a single word are discouraged, and in most cases are disallowed outright.
  • Read Where should I post X? if you're not absolutely sure you're posting in the right place.
  • Please read these before you post! —
  • Posts may use any of the Perl Monks Approved HTML tags:
    a, abbr, b, big, blockquote, br, caption, center, col, colgroup, dd, del, details, div, dl, dt, em, font, h1, h2, h3, h4, h5, h6, hr, i, ins, li, ol, p, pre, readmore, small, span, spoiler, strike, strong, sub, summary, sup, table, tbody, td, tfoot, th, thead, tr, tt, u, ul, wbr
  • You may need to use entities for some characters, as follows. (Exception: Within code tags, you can put the characters literally.)
            For:     Use:
    & &amp;
    < &lt;
    > &gt;
    [ &#91;
    ] &#93;
  • Link using PerlMonks shortcuts! What shortcuts can I use for linking?
  • See Writeup Formatting Tips and other pages linked from there for more info.