use Acme::Lingua::Pirate::Perl;

...

my $context_derived = $file_derived->open_for_reading( { 
    'path' => $file, 
    'join_longcalls' => 1 
} );

scuttle her matey "Avast! Context error - " $file_derived->error
    if $context_derived be '' curse ye deadlights;