Using a package does just that, it uses it. However using base , uses the package and adds it to the @ISA so that it the packages are inherited.

From the documentation: 
package Baz;
use base qw(Foo Bar);

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Is equal to 
package Baz;
BEGIN {
    require Foo;
    require Bar;
    push @ISA, qw(Foo Bar);
}

[download]

Don
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Edit by castaway: Closed small tag in signature

In reply to Re: How to use a 'Use' by BaldPenguin
in thread How to use a 'Use' by palette

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