in reply to Exporter/@ISA confusion
As Corion has already said, the use of Exporter is frowned upon when writing classes, but if you really have to use it in such a way, then try rewriting our @ISA = qw(Exporter); as push @ISA, qw(Exporter); - in this way, rather than being overwritten, @ISA is extended.
A user level that continues to overstate my experience :-))
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Seekers of Perl Wisdom