You want a module that pushes onto an array?

I would do: 

package LWP::UserAgent::Powerfull;
use LWP::UserAgent::Proxified;
use LWP::UserAgent::Determined;
use LWP::UserAgent::Cached;
our @ISA = qw[LWP::UserAgent::Proxified LWP::UserAgent::Determined LWP
+::UserAgent::Cached];

[download]
Or, if for whatever reason, you insist of having the indicated chain: 
package LWP::UserAgent::Powerfull;
use LWP::UserAgent::Proxified;
use LWP::UserAgent::Determined;
use LWP::UserAgent::Cached;
push @LWP::UserAgent::Determined::ISA, "LWP::UserAgent::Proxified";
push @LWP::UserAgent::Cached::ISA, "LWP::UserAgent::Determined";
our @ISA = "LWP::UserAgent::Cached";

[download]
assuming that LWP::UserAgent::Proxified already inherits LWP.

In reply to Re: base class manipulation: Is there something similar on CPAN? by JavaFan
in thread base class manipulation: Is there something similar on CPAN? by OlegG

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