Things we don't have #1
About this posting series
These days Perl/CPAN is not king anymore. It no longer has the largest number of modules or the most complete collection in every aspect. But it still compares very favorably overall and is still regarded as one of the repositories that have the best supporting infrastructure/ecosystem (e.g. CPANTesters).
Each post will mention a few modules/applications that exist and live on other language's software repositories like Python's PyPI, RubyGems, or npm…