Gnuplot.py is a Python package that interfaces to gnuplot,
the popular open-source plotting program. It allows you
to use gnuplot from within Python to plot arrays of data
from memory, data files, or mathematical functions.
If you use Python to perform computations or as 'glue'
for numerical programs, you can use this package to plot
data on the fly as they are computed. And the combination
with Python makes it is easy to automate things, including
to create crude 'animations' by plotting different datasets
one after another.
The package includes a demonstration that can be run by
typing 'python /usr/lib/python2.5/site-packages/Gnuplot/demo.py'.