perl -v

This is perl 5, version 24, subversion 0 (v5.24.0) built for x86_64-linux
(with 1 registered patch, see perl -V for more detail)

...

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perl -MData::Dumper -E 'say Data::Dumper->VERSION'
2.160

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perl -MTkx -E 'say Tkx->VERSION'

Can't locate Tkx.pm in @INC (you may need to install the Tkx module) (@INC contains: /home/spek/perl5/perlbrew/perls/perl-5.24.0/lib/site_perl/5.24.0/x86_64-linux /home/spek/perl5/perlbrew/perls/perl-5.24.0/lib/site_perl/5.24.0 /home/spek/perl5/perlbrew/perls/perl-5.24.0/lib/5.24.0/x86_64-linux /home/spek/perl5/perlbrew/perls/perl-5.24.0/lib/5.24.0 .).
BEGIN failed--compilation aborted.

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cpan install Tkx

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cpanm Tkx