Here is a code snippet from a tutorial i was looking at on the web 

package TestSite::Login;
  $VERSION = v0.0.1;

  use v5.10.0;
  use warnings;
  use strict;
  use Carp;

  use Digest::MD5 'md5_hex';

  open(my $fh, '<', 'passwords') or die "cannot open passwords file $!
+";
  my %passwords = map({chomp; split(/:/, $_, 2)} <$fh>);

  sub check_password {
    my ($user, $pass) = @_;

    return(
      $passwords{$user} and
      md5_hex($pass) eq $passwords{$user}
    );
  }

  1;

[download]
This code has a use strict directive in it so I don't understand how it can call the md5_hex function without qualifying it with the full package name. I thought 'use strict' forces you declare lexical variables using 'my' and to reference to package variables and functions with their full names.

many thanks

In reply to beginner - understanding use strict 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.