I'll assume there is more to test.pl and Module.pm, since you had to instantiate $app somehow)... In test.pl, $fh refers to (most likely) $main::fh, but in Module.pm, it probably refers to $Module::fh (assuming you have a package Module at the top). These are very much different variables.

The million dollar question is, why are you using globals to pass data into a method? Either the filehandle should be an attribute encapsulated in the object, or something passed in explicitly to the method call. Or it could even be a static package variable, with access through a class method.

If you really really really really want to "pass" data to your method this way, just call the variable by its fully-qualified name $Module::fh from test.pl.

Update: Looking even more closely, you should have $fh = \*DATA (note the backslash). Although my previous suggestions still apply as well.

blokhead

In reply to Re: Problem Reading __DATA__ in a Module by blokhead
in thread Problem Reading __DATA__ in a Module by Wally Hartshorn

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.