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.