Ecosyste.ms: Packages
An open API service providing package, version and dependency metadata of many open source software ecosystems and registries.
conda-forge.org "barchart" keyword
jkqtplotter 2019.11.1
An extensive Qt4/Qt5 Plotter framework (including a fast variant and a LaTeX equation renderer), ...2 versions - Latest release: over 4 years ago - 525 stars on GitHub