Here's a real-life case where Exporter was useful to me: 
BEGIN {
   if ($^O =~ /Win/) {
      eval "use Tricky_Win;"
   }
   else {
      eval "use Tricky_Linux;"
   }
}

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I made two portability modules, each exporting the same function names. Then the rest of the code can use the exported functions without worrying about where they came from.

In reply to Re: Why should I use Exporter? by tall_man
in thread Why should I use Exporter? by pernod

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