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use Data::Dumper; package genomic_data; ... sub new { ... my %h = $self->{"gene_idx"}[0]; print Data::Dumper(%h); ... }
Undefined subroutine &Data::Dumper called at /home/ingo/workspace/VL_phylogeny/src/genomic_data.pm line 62.
print Data::Dumper::Dumper($h);
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package genomic_data; use Data::Dumper; ... sub new { ... my $h = $self->{"gene_idx"}[0]; print Dumper($h); ... }