python3-chameleon 3.6.2-2 (amd64 binary) in ubuntu focal

 Chameleon compiles templates to Python byte-code. It includes a complete
 implementation of the Zope Page Templates (ZPT) language.
 .
 The engine itself performs 10-15 times better than the reference
 implementation and real-world benchmarks show an overall performance
 improvement in complex applications of 30-50%.
 .
 This is the Python 3 version of the package.