Question

I am trying to create my own Perl module in /usr/local/lib/perl

I have the environmental variable PERL5LIB set:

$ env | grep PERL
PERL5LIB=/usr/local/lib/perl

If I create a module: $PERL5LIB/My/ModuleTest.pm

$ ./test.pl 
Can't locate object method "new" via package "My::ModuleTest" (perhaps you forgot to load "My::ModuleTest"?) at ./test.pl line 8.

test.pl:

#!/usr/bin/perl

use strict;
use warnings;
use My::ModuleTest;

my $test = new My::ModuleTest;
print $test->check;

ModuleTest.pm:

package ModuleTest;

use strict;
use warnings;

sub new {
        my $class = shift;
        my ($opts)= @_;
        my $self = {};
        $self->{test} = "Hello World";

        return bless $self, $class;
}
sub check {
        my $self = shift;
        my ($opts) = @_;

        return $self->{test};
}
1;

I want to use the $PERL5LIB as the library path for my modules to segregate them from the installation directory.

Perl @INC:

$ perl -le 'print foreach @INC'
/usr/local/lib/perl
/usr/lib/perl5/site_perl/5.8.8/i386-linux-thread-multi
/usr/lib/perl5/site_perl/5.8.8
/usr/lib/perl5/site_perl
/usr/lib/perl5/vendor_perl/5.8.8/i386-linux-thread-multi
/usr/lib/perl5/vendor_perl/5.8.8
/usr/lib/perl5/vendor_perl
/usr/lib/perl5/5.8.8/i386-linux-thread-multi
/usr/lib/perl5/5.8.8
.

Answer 1

Try package My::ModuleTest; in your file ModuleTest.pm – you should use the full name.