How to find the perl module's dependency modules ?

[vinoth.ree]

Hi Monks,

If I use cpan command It will also install the dependency modules of that module. How do I list a dependency modules of a perl module ? Thanks!

[moritz]

I find http://deps.cpantesters.org/ quite nice (albeit a bit slow at times).

[c9s]

try Module::ScanDeps ?

[jettero]

I usually use "look Module::Name" from the cpan shell. Then you get a shell prompt and I either read the Makefile.PL, Build.PL, or execute it (which prints the deps to the terminal).

[vinoth.ree]

I can also see the dependency modules when I install a new perl module, but my expectation is any perl module is available to find the already installed module's dependency modules.

[ww]

Module dependancy tree

[Khen1950fx]

These are a few of my favorite things:

#!/usr/local/bin/perl

use strict;
use warnings;
use CPAN::FindDependencies;
use ExtUtils::MakeMaker qw(prompt);
    
my $mod = prompt("Enter module name: ");

my @dependencies = CPAN::FindDependencies::finddeps($mod);
    foreach my $dep (@dependencies) {
    print ' ' x $dep->depth();
    print $dep->name().' ('.$dep->distribution().")\n";
  }

And this:

#!/usr/local/bin/perl

use strict;
use warnings;
use B::PerlReq;
use ExtUtils::MakeMaker qw(prompt);

    my $mod = prompt("Enter path to .pm: ");
    my $prereq = system("perl -MO=PerlReq -d $mod");
    print "$prereq\n";

And this:

#!/usr/local/bin/perl

use strict;
use warnings;
use ExtUtils::MakeMaker qw(prompt);

    
my $mod = prompt("Enter module name: ");
my $info = system("module_info -a $mod");
print "$info\n";

[vinoth.ree]

Thanks ! I used first one.