While merlyn is correct, the tricky bit is "the .pm file once processed is not consulted again".

Remember that use is compile-time and require is runtime.

If the file is use'd, then everything will be okay. If the file is require'd, then it won't be read from disk until your code gets to that point. Also, if there is a use or require within a string eval, the file won't be read from disk until that point in the runtime.

But yes, after a file has been read from disk once, it won't be read again during the life of the script.

However is the script using fork? I've no idea whether forked processes work the same.

In reply to Re: Script hangs after editing package file? by fireartist
in thread Script hangs after editing package file? by Anonymous Monk

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.