Roundtrip Python Packages

strictyaml

Type-safe YAML parser and validator.

pyopenvba

Pure-Python reader/writer for VBA macros embedded in Excel / PowerPoint / Word files. Zero dependencies, deterministic round-trip, safe on protected and signed projects.

flatland

HTML form management, schema validation

pubtab

Bidirectional Excel↔LaTeX table converter with style-preserving roundtrip, multi-sheet support, and PNG/PDF preview.