[vorg]

An official "EOL" from the Python Benevolency doesn't mean Python 2 has reached the end of its life. There's too many projects out there using it for the same reasons this one is, i.e. "Because I started this project in 2011, though, with Python 2, you will need Python 2".

Both Python 2 and Python 3 will continue to exist for active projects for a long time yet. All programming languages have this issue, though many try to hide it, such as Apache Groovy.

In 2012, Groovy 2 shipped as two separate compilers bundled together, one was a continuation of Groovy 1 and the other was the new edition with the invoke-dynamic capabilities. A few weeks ago, the Groovy Committee decided to keep these separate in the bundle for the upcoming Groovy 3 release, add the new features such as the parser upgrade from Antlr 2 to Antlr 4 to the invoke-dynamic compiler only, and keep the other compiler (the one actually used by Gradle and Jenkins and everyone else) at the Groovy 1 capabilities.

So virtually everyone will be using the old antlr2 parser and slower dynamic function dispatches in Apache Groovy for a long time yet, something which the Groovy project managers are deliberately doing to cater for all the legacy Groovy code out there.