Have no fear: perl keeps a hash of modules already loaded in %INC and skips use-ing a module that is already loaded.

Try:

perl -MData::Dumper -e "print Dumper(\%INC);"

[download]

which gives: 

$VAR1 = {
          'warnings/register.pm' => 'C:/data/Perl/lib/warnings/registe
+r.pm',
          'bytes.pm' => 'C:/data/Perl/lib/bytes.pm',
          'XSLoader.pm' => 'C:/data/Perl/lib/XSLoader.pm',
          'Carp.pm' => 'C:/data/Perl/lib/Carp.pm',
          'Exporter.pm' => 'C:/data/Perl/lib/Exporter.pm',
          'warnings.pm' => 'C:/data/Perl/lib/warnings.pm',
          'C:/data/Perl/site/lib/sitecustomize.pl' => 'C:/data/Perl/si
+te/lib/sitecustomize.pl',
          'overload.pm' => 'C:/data/Perl/lib/overload.pm',
          'Data/Dumper.pm' => 'C:/data/Perl/lib/Data/Dumper.pm'
        };

[download]

CountZero

A program should be light and agile, its subroutines connected like a string of pearls. The spirit and intent of the program should be retained throughout. There should be neither too little or too much, neither needless loops nor useless variables, neither lack of structure nor overwhelming rigidity." - The Tao of Programming, 4.1 - Geoffrey James

In reply to Re: modules using things from other modules by CountZero
in thread modules using things from other modules by Anonymous Monk

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