How do you create a Perl module?

Question

How do you write a module for Perl? In Python you can use:

# module.py
def helloworld(name):
    print \"Hello, %s\" % name

# main.py
import module
module.         


        

Answer 1

A class:

# lib/Class.pm
package Class;
use Moose;

# define the class

1;

A module that exports functions:

# lib/A/Module.pm
package A::Module;
use strict;
use warnings;
use Sub::Exporter -setup => {
    exports => [ qw/foo bar/ ],
};

sub foo { ... }
sub bar { ... }

1;

A script that uses these:

# bin/script.pl
#!/usr/bin/env perl

use strict;
use warnings;

use FindBin qw($Bin);
use lib "$Bin/../lib";

use Class;
use A::Module qw(foo bar);


print Class->new;
print foo(), bar();