PyX is a Python package for the creation of PostScript and PDF files.
BSEditor: PyX is a Python package for the creation of PostScript and PDF files. It combines an Abstraction of the PostScript drawing model with a TeX/LaTeX interface. Complex tasks like 2d and 3d plots in publication-ready quality are built out of these primitives.

Features
PostScript and PDF output for device Independent, freely scalable figures
seamless TeX/LaTeX integration
full access to PostScript features like paths, linestyles, fill patterns, transformations, clipping, bitmap inclusion, etc.
advanced Geometric operations on paths like intersections, transformations, splitting, smoothing, etc.
sophisticated graph generation: modular design, pluggable axes, axes partitioning based on rational number arithmetics, flexible graph styles, etc.
you can free download Python package 0.10 now.