"The package stays in effect until either another package statement is invoked, or until the end of the end of the current block or file."

What?...HUH? package invoked? Dont you just stick in on the top of your file like:

Multiple package statements are allowed in the same module. Here's an example below:

$ cat My/Own/Package.pm
package My::Own::Package;

sub foo { 'in My::Own::Package' }

package My::Other::Package;

sub foo { 'in My::Other::Package' }

1;


$ ls My/Other/*
ls: My/Other/*: No such file or directory


$ cat print_foo.pl
#!/usr/bin/perl

use warnings;
use strict;

use lib qw(.);
use My::Own::Package;

print "calling My::Own::Package::foo()   returns: "
  . My::Own::Package::foo() . "\n";

print "calling My::Other::Package::foo() returns: "
  . My::Other::Package::foo() . "\n";


$ print_foo.pl
calling My::Own::Package::foo()   returns: in My::Own::Package
calling My::Other::Package::foo() returns: in My::Other::Package
[download]

Notice that use My::Own::Package; only tells Perl to load the appropriate My/Own/Package.pm module file. The module itself can do anything it wants (like installing a function in package My::Other::Package).

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